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8/10/2019 Asme Ix Welder Qualification Interpretation
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ASME SECTION IX INTERPRETATIONS
NOTE: THESE INTERPRETATIONS ARE FOR ASME COMMITTEE USE ONLY.
THEY ARE NOT TO BE DUPLICATED OR USED FOR OTHER THAN ASME
COMMITTEE BUSINESS.
WARNING: THERE MAY BE SOME TYPOGRAPHICAL ERRORS IN THIS
DOCUMENT. PLEASE REVIEW THE ACTUAL INTERPRETATION FOR THE
EXACT WORDING.
TO GET A PRINTED COPY OF AN INTERPRETATION, FIRST HIGHLIGHTTHE PORTION DESIRED, THEN GOTO File ON THE TOOLBAR, THEN Print... ,
THEN HIGHLIGHT THE DOT AT THE (Selection BUTTON, FINALLY PRESS THE
OK BUTTON. BE CAREFUL NOT TO PRINT THE ENTIRE DOCUMENT (1 Page).
Interpretation: IX-77-04Subject: Section IX, Tack Welder Qualification
Date Issued: January 31, 1977File: NA
Question: May a welder be qualified as a tack welder if his tack welds were a part of anotherwelder's qualification test coupon or part of another welding procedure qualification test whichmet the intent of the Code?
Reply: The Code requires that all welders, (including tack welders), must be qualified perSection IX.
Interpretation: IX-78-16
Subject: Section IX, QW-255, Flux Cored Arc WeldingDate Issued: February 27, 1978
File: BC77-502
Question: Does gas metal-arc welding (GMAW) in the procedure qualification and
performance qualification refer also to flux cored arc welding (FCAW)? If so, should welders bequalified separately under both processes?
Reply: Flux cored arc welding (FCAW) is permissible under the Code and is considered tocome under the more general method of welding known as gas metal-arc welding (GMAW).
Welders do not have to be qualified separately unless there is a change in any of the EssentialVariables. However, there is an Essential Variable for procedure qualification, QW-404.23, that
requires separate qualification for solid wire and for flux cored wire for the GMAW process.
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Interpretation: IX-78-76
Subject: Section IX, QW-153(d)
Date Issued: June 7, 1978
File No: BC78-223
Question: QW-153.1(d) permits acceptance of the tension test if the specimen breaks in the
base metal outside of the weld or fusion line where the strength is not more than 5% below thespecified minimum tensile strength of the base metal. What are the requirements if the specimen
breaks in the weld or fusion line?
Reply: If the tension test specimen breaks in the weld or fusion line, it shall have a tensile
strength not less than that required in QW-153.1(a), (b), or (c).
VOLUME 18
Interpretation: IX-86-08
Subject: Section IX, QW-200.4
Date Issued: December 4, 1985
File No: BC85-134
Question (1): Per QW-200.4(a), may two or more separate WPSs (each properly qualified to
weld the joint individually) be used to weld a single production joint without writing a new WPS
combining the separate WPSs into a single WPS?
Reply (1): Yes.
Question (2): Does QW-211.4(a) permit the referencing of a separately qualified WPS to cover
the root pass welding of open root joints in another WPS?
Reply (2): Yes.
Interpretation: IX-86-12Subject: Section IX, QW-355
Date Issued: December 4, 1985File: BC85-482
Question: Is FCAW included with GMAW in QW-355?
Reply: Yes.
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Interpretation: IX-86-46Subject: Section IX, QW-355
Date Issued: November 24, 1986File: BC86-219
Question: Is a welder who is qualified using gas metal-arc welding (GMAW) also qualified for
flux-cored arc welding (FCAW) or vice versa, provided the other variables for performancequalification remain unchanged?
Reply: Yes.
Interpretation: IX-86-70Subject: Section IX, QW-200.2 and QW-483
Date Issued: May 7, 1987File: BC87-089
Question (1): Is the absence of a laboratory test number on a Procedure Qualification Record
(PQR), QW-483 or equivalent, cause for rendering the document invalid?
Reply (1): No.
Question (2): Is the PQR invalid if the laboratory test results are specified on a PQR and neitherthe laboratory nor the owner of the PQR can produce a copy of the laboratory test results?
Reply (2): No.
VOLUME 27
Interpretation: IX-89-34Subject: Section IX, QW-404.5
Date Issued: January 3, 1990File: BC89-172
Question: If a WPS and PQR have been qualified with filler material purchased to an establishedprocurement document, is it required by QW-404.5 to requalify each time that filler material is
reordered to the procurement document?
Reply: No.
Interpretation: IX-89-35Subject: Section IX, Multi-process QualificationDate Issued: January 3, 1990File: BC89-307
Question: A qualified (multiple process) WPS lists the following: Diameter and pipe schedule 6 in. Sch. xxs (0.864 in. nominal thickness); GTAW root pass 0.100 in. deposit thickness;SMAW hot and fill passes 0.764 in. deposit thickness. A welder performed a performancequalification test, using the above WPS. An inspector, using a vernier caliper measured the root
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pass deposit and determined 0.125 in. thickness had been deposited by the GTAW process, andsubsequently rejected the performance test based on excessive deposit by the GTAW process.
The coupon was radiographed and, additionally, side-bend specimens were removed and tested.Both met all the Section IX requirements for performance qualification. Since there are no
tolerances stated in any of the tables relating to welding process deposits or test couponspecimens, does the Code require verification of the deposit thickness of weldments to the degree
cited above?
Reply: No.
Interpretation: IX-89-36Subject: Section IX, QW-409.8 and QW-422Date Issued: January 3, 1990
File: BC89-357
Question (1): When a constant current power supply is used in SMAW and GTAW, is a voltageor voltage range required to be listed on the WPS, provided the voltage is addressed (i.e. N/A)?
Notch-toughness testing is not applicable.
Reply (1): No.
Question (2): ASTM SB-163, 166, 167 and 168 Specification for Nickel Chromium Alloys invarious shapes and forms, include UNS No. N06600 and UNS No. N06690 material. In the P-
No. 43 base material listing, only UNS No. N06600 is specified. May the UNS No. N06690 beincluded in the P-No. 43 grouping to reduce welding procedure qualifications?
Reply (2): No.
Interpretation: IX-89-39Subject: Section IX, QW-216.2(d)Date Issued: January 3, 1990File: BC89-361
Question: When obtaining the chemical analysis required in QW-216.2(d) from the test coupondetailed in QW-462.5, shall the minimum thickness qualified be measured from the fusion line sothat the chemical sample included the effect of base metal dilution in the deposit?
Reply: Yes.
VOLUME 29
Interpretation: IX-89-83Subject: Section IX, QW-151.1, QW-451
Date Issued: January 2, 1991File: BC90-532
Question (1): Are two single full plate thickness specimens necessary to satisfy the requirementsof QW-451 when they are prepared in accordance with QW-151.1(a)?
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Reply (1): Yes.
Question (2): Is the qualified thickness range of QW-451 based on the as-welded coupon
thickness, even though the coupon is subsequently machined to less thickness, in order to obtainparallel surfaces?
Reply (2): Yes.
Interpretation: IX-89-87Subject: Section IX, QW-202.2(c)
Date Issued: January 2, 1991File: BC90-745
Question: May pressure retaining fillet welds be qualified by means other than a groove weldtest coupon?
Reply: No
Interpretation: IX-89-95Subject: Section IX, QW-452.1
Date Issued: March 7, 1991
File No: BC90-869
Question: Is a welder who has qualified using a deposit thickness of 0.90 in. qualified to weld theentire thickness of a 3 in. thick material?
Reply: Yes.
Interpretation: IX-92-12Subject: Section IX; QW-322.2 Expiration and Renewal of Qualifications of WeldersDate Issued: October 7, 1991File No BC91-264
Question: May a welder that has qualified on 2 in. and 6 in. diameter stainless steel pipe ,maintain qualification by making one butt weld on 6 in. stainless steel pipe?
Reply: Yes.
Interpretation: IX-92-18Subject: QW-422 and QW-423; Alternate Base Materials for Welder Qualification,
A-Numbers
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Date Issued: October 7, 1991File No: 91-389
Question (1): Is a welder, who has qualified using mild steel base material P-No. 1 to P-No. 1
using either GMAW, GTAW, or PAW welding processes and filler metal F6/A1, qualified toweld austenitic stainless steel P-No. 8 to P-No. 8?
Reply (1): Yes.
Question (2): Is the A-Number an essential variable for a welder performance qualification test?
Reply (2): No.
Interpretation: IX-92-22
Subject: Section IX; QW-322.2 Expiration and Renewal of Welder Qualification
Date Issued: October 7, 1991
File No: BC91-425
Question (1): Does a welder who is qualified for a given process for both groove and
corrosion-resistant weld metal overlay maintain his qualification for groove welding if, for more
than six months, the welder only does corrosion-resistant weld metal overlay welding?
Reply (1): Yes.
Question (2): Does the non-Code welding work need to be examined by NDE to maintain the
welders qualification?
Reply (2): No.
Question (3): May a welder maintain his qualification by welding on temporary attachments
without any NDE?
Reply (3): Yes.
VOLUME 32
Interpretation: IX-92-42
Subject: QW-200.4(a), Combination of Welding ProcessesDate Issued: September 30, 1992File No: 92-011
Question: May a single set of weld metal impact test specimens be used to qualify two or moreprocesses or procedures?
Reply: Yes, provided weld metal from each process or procedure is included in each specimen.
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Interpretation: IX-92-43Subject: QW-492, Definition of Machine WeldingDate Issued: September 30, 1992
File No: 92-100
Question: Is a GMAW spot welding process in which all variables are preset, except forplacement of the nozzle against the material and activation of the trigger by the operator,considered machine welding?
Reply: Yes.
Interpretation: IX-92-44Subject: QW-251.4 and QW-280, Special Processes
Date Issued: September 30, 1992File No: 92-168
Question (1): According to the 1990 Addenda of Section IX, are there any supplementaryessential or nonessential variables required to be addressed in a WPS for the special processesdescribed in QW-280?
Reply (1): No.
Question (2): According to the 1991 Addenda of Section IX, are there any supplementaryessential or nonessential variables required to be addressed in a WPS for the special processes
described in QW-251.4?
Reply (2): No.
Interpretation: IX-92-45Subject: QW303.2 and QW-452.4, Fillet WeldsDate Issued: September 30, 1992
File No: 92-238
Question: When Section IX requires separate performance qualification for fillet welds on smalldiameter pipe, does the same requirement apply to longitudinal fillet welds (such as theattachment of gussets in the longitudinal direction)?
Reply: No.
Interpretation: IX-92-46Subject: QW-303.3 and QW-461.9, Special Positions for Performance QualificationDate Issued: September 30, 1992File No: 92-265
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Question: Is a welder who is qualified to weld groove welds in a special orientation, alsoqualified to weld in the 1G position?
Reply: Yes.
Interpretation: IX-92-47Subject: QW-322.2, Renewal of QualificationDate Issued: September 30, 1992
File No: 92-266
Question: May the renewal of welder and welding operator performance qualification be done onproduction work?
Reply: Yes.
Interpretation: IX-92-48Subject: QW-466, Test Jigs
Date Issued: September 30, 1992File No: 92-267
Question: In determining the appropriate test jig dimensions of QW-466 to use for bend tests, isit permissible to use the dimensions corresponding to P-No. 35 material when the filler metal is aF-No. 36, even though the base material is other than a P-No. 35 material?
Reply: No.
Interpretation: IX-92-49Subject: QW-466, Test Jigs
Date Issued: September 30, 1992File No: 92-268
Question: In qualifying a welding procedure which utilizes a F-No. 36 filler of ER CuAl-A1
(SFA 5.7) for corrosion resistant weld metal overlay of a P-No. 1 carbon steel material, is therequired mandrel diameter for side bend testing 4t as determined from column A of QW-466.1,QW-466.2 or QW-466.3?
Reply: Yes.
Interpretation: IX-92-50
Subject: QW-403.6, Base MetalsDate Issued: September 30, 1992File No: 92-217
Question: If Heat Affected Zone (HAZ) notch toughness requirements are applicable, does QW-
403.6, base metal thickness requirements apply?
Reply: Yes.
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Interpretation: IX-92-51Subject: QW-451.3 and QW-462.4, Fillet Weld Test Specimens Procedure; and QW-
452.4, Performance Qualification Thickness Limits and Test SpecimensDate Issued: September 30, 1992
File No: 92-276
Question: If a welder performs a procedure qualification per QW-462.4(d) using 2 in. NPS pipeand passes, is he qualified for all diameters as outlined in QW-451.3?
Reply: No, per QW-452.4, he is qualified down to 1 in. O.D.
Interpretation: IX-92-52Subject: QW-462.5, Corrosion-Resistant Overlay Cladding/Hard-Facing Overlay,
Chemical Analysis SpecimenDate Issued: December 14, 1992
File No: 92-252
Question: May only one chemical analysis specimen be removed from the vertical portion of a6G positioned hard-facing welded PQR coupon when the weld travel direction is reversed everyother weld pass resulting in weld beads deposited in vertical-upward and vertical-downward
direction?
Reply: Yes, provided a chemical analysis represents each vertical travel direction.
Interpretation: IX-92-53Subject: QW-452.1, Groove Weld Procedure Qualifications Thickness Limits and Test
Specimens
Date Issued: December 14, 1992
File No: 92-254
Question: A welder has qualified on 3 in. O.D. in. wall pipe in the 1G position. He has alsoqualified on 1 in. O.D. in. wall pipe in the 6G position. Is he qualified to weld 1 in. O.D.
in. wall in all positions?
Reply: No.
Interpretation: IX-92-54Subject: QW-214.3, Corrosion-Resistant Weld Metal OverlayDate Issued: December 14, 1992
File No: 92-305
Question: Prior to the 1991 Addenda, did QW-214.3 address the number of chemical analysis
tests required for Corrosion-Resistant Weld Metal Overlay utilizing the GTAW Machine WeldingProcess in the 5G or 6G position?
Reply: No.
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Interpretation: IX-92-55Subject: QW-103.2, Records
Date Issued: December 14, 1992File No: 92-307
Question: Is it acceptable to satisfy the requirements of QW-103.2 for record maintenance,
certification, and accessibility by means of an electronic storage medium, e.g., computerdatabase?
Reply: Section IX does not address the media in which records are required to be maintained.
Interpretation: IX-92-56Subject: QW-451.3, Fillet Weld TestsDate Issued: December 14, 1992
File No: 92-308
Question: A welder performs a fillet weld procedure qualification in accordance with QW-451.3,
which fails; therefore, neither the procedure nor the welder are qualified. Is it permissible for thewelder to then perform a successful groove weld procedure qualification test and be qualified for
grooves and fillets?
Reply: Yes.
Interpretation: IX-92-57Subject: QW-253, QW-256 and QW-406.3, Maximum Interpass Temperature
Date Issued: December 14, 1992File No: 92-354
Question: According to the 199 Addenda of Section IX, is it permissible to revise a WPS byincreasing interpass temperature to more than 100F above that recorded on the supporting PQR
when supplementary essential variables do not apply without requalification?
Reply: Yes.
Interpretation: IX-92-58Subject: QW-364, Friction Welding
Date Issued: December 14, 1992File No: 92-357
Question: For performance qualification, is a friction weld operator required to requalify for eachseat size and base metal combination to be qualified to operate the machine?
Reply: Yes.
VOLUME 33
Interpretation: IX-92-59
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Subject: QW-306, Combination of Welding Processes; QW-452.1 and QW-452.3,Performance Qualification Thickness Limits and Test Specimens
Date Issued: February 22, 1993File No: 92-206
Background: The combination of welding processes and pipe diameters listed below were used
for performance qualification:
(1) 2 in. Sch. 80 (.218) pipe with open butt using GTAW process.
(2) 2 in. Sch. 160 (.343) pipe with consumable insert and fill pass using the GRAW processand the remainder welded with SMAW process.
(3) 6 in. XXS (.864) using SMAW process with backing.
Question: Using the combinations listed in the Background, in accordance with QW-306, Note 2
of QW-452.1 to determine maximum thickness qualified, and QW-452.3 for minimum diameterqualification, is the welder qualified to weld on unlimited thickness and diameters above 1 in.,
using either an open butt joint or a consumable insert with the root layer deposited with theGTAW process and the remainder deposited with the SMAW process?
Reply: Yes.
Interpretation: IX-92-60Subject: QW-214, Corrosion-Resistant Weld Metal Overlay
Date Issued: February 22, 1993File No: 92-421
Question: When corrosion-resistant weld metal overlay is deposited in a base material groove toa depth that is not included in the design calculations, must the deposit be tested as a groove
weld?
Reply: No.
Interpretation: IX-92-61Subject: Section II, Part C; SFA-5.13, Specification for Solid Surfacing Welding Rods
and ElectrodesDate Issued: February 22, 1993File No: 92-422
Question: May powdered filler metal be classified under Section II, Part C, SFA 5.13?
Reply: No.
Interpretation: IX-92-62Subject: QW-408.2, Shielding GasDate Issued: February 22, 1993
File No: 92-425
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Question (1): When changing shielding gases of a specific mixture, is it permissible to adjust thenominal percentage(s) of the minor component(s) by +/- 20% without requalifying the procedure?
Reply (1): No.
Question (2): In addition, when the absolute value of +/- 20% times the nominal percentage of a
minor component is less than 1%, would it be permissible to make a +/- 1% adjustment to the gasmixture?
Reply (2): No.
Interpretation: IX-92-63Subject: QW-153.1, Tensile StrengthDate Issued: February 22, 1993
File No: 92-452
Question: A welding procedure qualification test coupon is welded using P-No. 23, SB-209,alloy 6061 aluminum base material in the (o) temper. After welding the test coupon, it issubjected to a T-6 heat treatment. To establish acceptability of tensile tests per QW-153.1, maythe tensile requirements of QW-422 for SB-209, alloy 6061 (T4 and T6 tempers in the weldedcondition) be used?
Reply: No.
Interpretation: IX-92-64Subject: QW-322, Expiration and Renewal of Qualification
Date Issued: May 26, 1993
File No: 93-148
Background: A welding operator is in the process of renewing his/her qualification usingmachine GTAW welding equipment. During the process the machine malfunctions and burns
through the root pass of the test coupon. No operator error is noted. Following the malfunction,the test coupon is repaired using a manual GTAW process. After the repair, the machine weldingequipment is used to complete the rest of the test coupon.
Question: May a welding operator performance test coupon being welded for qualification or
renewal, be repaired prior to testing, using a manual welding procedure?
Reply: No.
Interpretation: IX-92-65Subject: QW-423.1, Alternate Base Metals for Welder QualificationDate Issued: May 26, 1993File No: 93-148
Question: In QW-423.1, is P-No. 42 included in P-No. 4X?
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Reply: Yes.
Interpretation: IX-92-66Subject: QW-201, Manufacturers or Contractors ResponsibilityDate Issued: May 26, 1993
File No: 93-377
Background: Company A and Company B merge divisions to form new Company C.
Question (1): May the new Company, C, use PQRs and WPSs developed previously byCompany A and Company B?
Reply (1): Yes, provided operational control is in accordance with QW-201.
Question (2): May the new Company, C, use the central materials laboratory of Company A to
develop WPSs and PQRs?
Reply (2): Yes, provided operational control is in accordance with QW-201.
Interpretation: IX-92-67Subject: QW-201, Manufacturers or Contractors ResponsibilityDate Issued: May 26, 1993
File No: 93-391
Question: In a contract involving piping construction work, our company subcontracted thepiping prefabrication work to a subcontractor. This subcontractor is managed by our companybut has a different name. The subcontractor proceeded to qualify welding procedures which were
conducted in the presence and with the approval of our companys welding engineer, who
monitored the welding of the test coupons and signed approval on the PQRs. The QualityControl System of the subcontractor and our company fully describe the operational control of
procedure qualifications. Was our client right in rejecting the use by our company of thesubcontractor qualified welding procedures for the erection work of the prefabricated piping?
Reply: This is a contractual issue, which ASME does not address.
Interpretation: IX-92-68Subject: QW-306, Combination of Welding Processes; and QW-451, Groove Weld
Procedure Qualification Thickness Limits and Test SpecimensDate Issued: June 30, 1993
File No: 92-011A
Question: In using a single set of test specimens to qualify two or more processes or procedures,does Section IX specify a minimum weld deposit thickness to be included in each test specimen
from each of the processes or procedures?
Reply: No.
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Interpretation: IX-92-69Subject: QW-409.1, Electrical Characteristics
Date Issued: June 30, 1993File No: 92-011B, 92-228, 92-353
Question: Is it the intent of QW-409.1 that the heat input, to be recorded on the PQR, be
calculated based on the parameters used at the location where the impact specimens wereremoved?
Reply: Yes.
VOLUME 34
Interpretation: IX-92-70RSubject: QW-403.5, Base MetalsDate Issued: June 4, 2001
File No: 00-470
Question (1): When a procedure qualification with supplemental notch toughness requirement is
conducted with one P-Number material having multiple certifications in different GroupNumbers, are WPSs qualified for all combinations of the Group Numbers?
Reply (1): Yes.
Question (2): In the above question, does one set of HAZ impact specimens, when required,satisfy the requirements of Section IX?
Reply (2): Yes.
Question (3): When a procedure qualification with supplemental notch toughness requirement isconducted with two materials of different P-Number each having multiple certifications indifferent Group Numbers, are WPSs qualified for all combinations of the multiple certified Group
Number of the first P-Number material to the multiple certified Group Number of the second P-Number material?
Reply (3): Yes.
Question (4): In the above question, does one set of HAZ impact specimens from each P-Numbermaterial, when required, satisfy the requirement of Section IX?
Reply (4): Yes.
Question (5): In Question (3), are materials from the multiple certified Group Numbers qualifiedfor welding a P-Number material to itself?
Reply (5): No.
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Note: The term multiple certifications as used means any material for which a material testreport indicates that the material meets all the requirements of two or more specifications, grades,
types, or classes.
Interpretation: IX-92-71
Subject: QW-302.4, Visual ExaminationDate Issued: September 22, 1993File No: 93-365
Question: Are welders or welding operators qualified in accordance with Section IX, prior to the1992 Addenda, for which the results of visual examination required by QW-302.4 were not
documented on the WPQ, required to requalify in order that visual examination results may bedocumented?
Reply: No.
Interpretation: IX-92-72Subject: QW-381(c), Corrosion Resistant Weld Metal Overlay; QW-453 and QW-461.9,
Performance Qualification
Date Issued: September 22, 1993File No: 93-392
Question (1): May welder qualifications for corrosion-resistant overlays per QW-381 and QW-453 be made on plate, when qualifying for welding on pipe/tubes parallel to the axis of the
pipe/tubes?
Reply (1): Yes.
Question (2a): Should the side bends required in QW-453 consist of the base metal plus overlaythickness, after surface conditioning per Note 4 of QW-453?
Question (2b): When the overlay test specimens are less than in. thick, may the side bend
specimen width be the test specimen thickness?
Question (2c): May the edges of the overlay be outside of the bent area as long as at least a 1in. width of overlay and HAZ are completely within the bend?
Reply (2a): Yes.
Reply (2b): Yes.
Reply (2c): Yes.
Question (3): may QW-461.9 Groove-Pipe be used for the position essential variable rules for
welder qualifications on corrosion-resistant overlap?
Reply (3): Yes.
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Interpretation: IX-92-73Subject: QW-321.3, Welder Qualification After Further Training or Practice
Date Issued: September 22, 1993File No: 93-468
Background: A welder performance qualification test plate fails to meet the radiographic
requirements for qualification. After further training a new performance qualification test plate iswelded.
Question: May the new test plate be evaluated by bend testing?
Reply: Yes.
Interpretation: IX-92-74Subject: QB-402.1, Base Metals
Date Issued: September 22, 1993File No: 93-474
Question: When brazing material used for a procedure qualification test is not listed in QB-422or Appendix C, but is similar to P-No. 107 or S-No. 107 materials listed in QB-422 or Appendix
C, may this material be considered P-No. 107 or S-No. 107 material in accordance with QB-402.1?
Reply: No.
Interpretation: IX-92-75Subject: QW-200.4(b), Combination of Welding Procedures
Date Issued: September 22, 1993
File No: 93-490
Question: When writing multi-process welding procedures per QW-200.4(a), where the tube wallthickness is less than 1 in., using a separate qualification for the root deposit only, must the root
deposit qualification coupon be in. minimum thickness as stated in QW-200.4(b)?
Reply: No.
Interpretation: IX-92-76Subject: QW-462, Test SpecimensDate Issued: September 22, 1993
File No: 93-515
Question: QW-462 defines W as specimen width, in.. Is in. a minimum or maximumdimension requirement for preparing a reduced section tensile specimen?
Reply: No.
Interpretation: IX-92-77
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Subject: QW-200.4, Combination of Welding Procedures; and QW-451.4, Fillet WeldsQualified by Groove Weld Tests
Date Issued: September 22, 1993File No: 93-518
Background: A butt welding procedure qualification was completed on a pipe with E6010
electrode (F-No. 3) for the root pass and E7018 electrode (F-No. 4) for the remaining process.
Question (1): Will the above procedure qualification alone support a WPS to make a fillet weld
with E7018 electrodes (F-No. 4) for all the passes for all fillet sizes on all base metal thicknesseswhen all the other essential variables under QW-253, SMAW process, are the same?
Reply (1): Yes.
Question (2): Will the above procedure qualification alone support a WPS to make a butt weldwith E7018 electrodes (F-No. 4) for all the passes including the root pass within the limits of
qualification of QW-451.1 and within the limits of the essential variables under QW-253, SMAWprocess?
Reply (2): Yes.
Interpretation: IX-92-78Subject: QW-200.2(b), Welding Procedure Qualifications
Date Issued: September 22, 1993File No: 93-561
Question (1): May a company subcontract weld procedure development and qualification,including certification of the PQR, without a company representative present to witness the
welding, testing and certification?
Reply (1): No.
Question (2): May a company subcontract weld procedure development and qualification,
including certification of the PQR, with a company representative present to witness the welding,testing and certification?
Reply (2): No.
Interpretation: IX-92-79Subject: QW-151.1, Tension Tests, Reduced Section-Plate; and QW-462.1(a), Test
Specimens
Date Issued: September 22, 1993File No: 93-583
Question (1): Is it permissible to reduce a plate test coupon thickness beyond removing thereinforcement to allow for parallel surfaces?
Reply (1): Yes.
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Question (2): What percentage of the thickness is permissible to be removed for procedurequalification?
Reply (2): The minimum necessary to obtain parallel surfaces.
Interpretation: IX-92-80Subject: QW-103, Responsibility; and QW-210, Manufacturers or Contractors
Responsibility
Date Issued: September 22, 1993File No: 93-584
Question: When a company changes names during the course of time must all the historicaldocuments, such as PQRs and WPQs, be revised to show this new name?
Reply: No, provided there is documented traceability from the new company name to the WPSs
and PQRs qualified under the old company name.
Interpretation: IX-92-81Subject: QW-103.1 and QW-201, Manufacturers or Contractors Responsibility
Date Issued: October 18, 1993File No: 92-306
Question (1): According to Section IX, para. QW-201, is it permissible for a manufacturer orcontractor to have the welding of the test weldments performed by another organization?
Reply (1): No.
Question (2): According to para. QW-201, is it permissible to subcontract the work preparation
of test metal for welding and subsequent work on preparation of test specimens from thecompleted weldment, performance of nondestructive examination, and mechanical test, providedthat the manufacturer or contractor accepts the responsibility for any such work?
Reply (2): Yes.
Question (3): If the manufacturer or contractor writes the WPS and the welder used to produceweldments to be tested for qualification of procedures are under full supervision and control of arepresentative of the manufacturer or contractor during the production of these test weldments,
may the welder be an employee of another organization?
Reply (3): No.
Interpretation: IX-92-82Subject: Code Case 2141, Electrodes and Fluxes for Submerged Arc Welding, SFA 5.17
and SFA 5.23Date Issued: November 22, 1993
File No: 93-434
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Question (1): Does the Manufacturers Date Report in the Section IX Code Case 2141 meanthe following: (a) Manufacturers Data Report required in PG-112 of Section I; (b) Data Report
required in NCA-3770 of Section III; (c) Data Report required in UG-120 of Section VIII,Division 1; or (d) Manufacturers Data Report required in AS-300 of Section VIII, Division 2?
Reply (1): A Manufacturers Data Report form is any data report from that is required in an
ASME Code Book.
Question (2): Is it required to describe this Code Case number on procurement and/or
manufacturers specifications and certified material test report of welding consumables?
Reply (2): Section IX does not address procurement and manufacturers specifications.
Interpretation: IX-92-83Subject: QB-415, Brazing Variables
Date Issued: September 22, 1993File No: 93-527
Question (1): Does ASME Section IX permit braze welding qualifications, using the rules of PartQW, Welding?
Reply (1): Yes.
Question (2): May a fabricator qualify hard-facing, using the brazing variables listed in QB-415?
Reply (2): No.
Interpretation: IX-92-84
Subject: QW-407.2, Postweld Heat TreatmentDate Issued: November 22, 1993File No: 93-586
Background: A PQR was welded on a 2 in. thick P-No. 1, Gr. 2 material and post weld heattreated at 1150F for six hours (3 hrs/in.) with supplementary essential variable requirements.
Question: Will this PQR support a WPS for a production weld in 2 in. thick P-No. 1, Gr. 2material that is PWHT at 1150F for 2 hours (1 hr/in.)?
Reply: Yes.
Interpretation: IX-92-85Subject: QB-121 and AB-123, Brazing Test PositionsDate Issued: November 22, 1993File No: 93-655
Question: If the test material is oriented at 15 deg. above horizontal (i.e., 75 deg. down fromvertical) and the brazing filler metal flows upward by capillary action through the joint, would the
brazer then be qualified for both the flat-flow and vertical-upflow positions?
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Reply: No.
Interpretation: IX-92-86Subject: QW-100.3, Welding General Requirements
Date Issued: November 22, 1993File No: 93-658
Question: May a hard-facing procedure qualification test that was performed in 1990 on a 1 in.thick test coupon and is used to support a welding procedure specification written in 1993, beused to deposit a hard-facing overlay on a base material 1 in. to unlimited thickness?
Reply: Yes. QW-100.3 allows welding procedure specifications (WPSs) to be supported by
procedure qualifications accomplished subsequent to 1962 without amending the WPS to includeany variables required by later Editions and Addenda.
VOLUME 35
Interpretation: IX-92-87Subject: QW-403.6, Base Metals; and QW-409.1, Electrical CharacteristicsDate Issued: February 14, 1994File No: 93-151
Background: Two PQRs have been qualified to support a WPS with notch toughness
requirements and having a qualified base metal thickness range from 5/16 in. to 2 in. inclusive.One PQR was qualified on 1 in. thick material with a maximum heat input of 85,000 J/in. Thesecond was qualified on 5/16 in. thick material with a maximum heat input of 45,000 J/in. All
other essential and supplementary essential variables are the same.
Question (1): Is this WPS qualified for using 85,000 J/in. max. heat input on thicknesses 5/16 in.to 2 in.?
Reply (1): No.
Question (2): Is the heat input value of 85,000 J/in. applicable to base metal thicknesses between in. to 2 in. and the heat input value of 45,000 J/in. applicable to base metal thicknesses between5/16 in. and in.?
Reply (2): Yes.
Interpretation: IX-92-88Subject: QW-409.1 and QW-409.8, Electrical CharacteristicsDate Issued: February 14, 1994
File No: 93-593
Question: Section IX, QW-409.8 and QW-409.1, require that the volts and amps be specified inthe WPS. Does Section IX require voltage to be measured at a specific location in the welding
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circuit or the current to be measured using a specific type of meter (RMS, averaging or othertype)?
Reply: No.
Interpretation: IX-92-89Subject: QW-452.1, Groove Weld Procedure Qualification Thickness Limits and Test
Specimens; and QW-452.3, Groove Weld Diameter Limits
Date Issued: February 14, 1994File No: 93-653
Question: A welder has qualified on 3 in. O.D. in. wall pipe in the 1G position and has alsoqualified on 1 in. O.D. in. wall pipe in the 1G position. Is the welder qualified to weld 1 in.
O.D. in. wall in the 1G position?
Reply: Yes.
Interpretation: IX-92-90Subject: QW-461.9, Performance Qualification Position and Diameter Limitations
Date Issued: February 14, 1994File No: 93-753
Question: A welder has passed two separate tests; one on in. O.D. by 0.049 in. thick pipewelded in the 6G position using GTAW process, and another on in. thick plate welded in the1G position using GTAW process. Do these two tests in combination qualify the welder to weld
pipe of unlimited diameter in all positions up to 1 in. thick using GTAW?
Reply: No.
Interpretation: IX-92-91Subject: QW-300, General Welding Performance Qualifications
Date Issued: February 14, 1994File No: 93-755
Question: Does Section IX prohibit making editorial corrections to welder and welding operatorperformance qualification records?
Reply: No.
Interpretation: IX-92-92Subject: QW-201, Manufacturers or Contractors Responsibility, Clarification Request to
Interpretation IX-92-07, Date Issued: Oct. 7, 1991, File 91-156Date Issued: May 20, 1994File No: 93-678
Question (1): Is the term Organization as stated in QW-201 and Company A inInterpretation IX-92-07 one and the same?
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Reply (1): No.
Background: Two companies are contracted by a client company to undertake pipe work
installation on its facility. All stages of the Welding Procedure Qualification Process for the twocontracted companies are witnessed by the client companies representative and the
documentation duly stamped and signed as accepted by the client.
Question (2): May these procedures be used by the client company?
Reply (2): No.
Question (3): Does the client company have to requalify these procedures in order to perform in-house maintenance at a later date using all the same essential and nonessential variables with its
own qualified welders?
Reply (3): Yes.
Interpretation: IX-92-93Subject: QB-402.1, Brazing Data and Appendix C Nonmandatory S-Numbers
Date Issued: May 20, 1994File No: 93-752
Question (1): Does the brazing procedure qualification test with a base metal assigned one S-Number, or S-Number plus Group-Number, qualify for all other base metals in the same S-Number grouping?
Reply (1): Yes.
Question (2): Does the brazing procedure qualification test with dissimilar metals using onemetal listed in one S-Number to one specific metal not listed in one S or P-Number qualify for the
brazing of all other base metals in the same S-Number to themselves and to the specific basemetal without S or P-Number?
Reply (2): Yes.
Interpretation: IX-92-94Subject: Section II, Part C SFA-5.8Date Issued: May 20, 1994File No: 93-754
Question: May AWS Classification Bag-34 be considered SFA-5.8 filler metal even though itdoes not appear in the 1992 ASME Boiler and Pressure Vessel Code Section II, Part C (includingthe 1992 Addenda)?
Reply: Yes.
Interpretation: IX-92-95
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Subject: QW-200, General Welding Procedure QualificationsDate Issued: May 20, 1994
File No: 94-008
Question: May a single WPS be qualified both with PWHT and without PWHT (two PQRs),thereby allowing the WPS to be used with or without PWHT?
Reply: Yes.
Interpretation: IX-92-96Subject: QW-300, General Welding Procedure Qualifications
Date Issued: May 20, 1994File No: 94-102
Background: A welder is qualified on a NPS 2 Sch. 40 pipe test coupon using GTAW 1.6 mm
deposited weld metal and SMAW 2.4 mm deposited weld metal.
Question (1): Is the SMAW portion of the performance qualification considered welding withbacking?
Reply (1): Yes.
Question (2): Is the welder qualified to weld NPS 4 single welded groove weld without backing
using the SMAW process only?
Reply (2): No.
Interpretation: IX-92-97
Subject: QW-200.4(a), Combination of Welding ProceduresDate Issued: May 20, 1994File No: 94-167
Question: According to QW-200.4(a), when a qualified WPS for a combination process isavailable, must a new WPS be generated in only one of the processes is to be used in production,
provided all requirements of Section IX for the process used are met?
Reply: No.
Interpretation: IX-92-98
Subject: Appendix C, Nonmandatory S-NumbersDate Issued: May 20, 1994File No: 94-236
Question: May steel produced to ASTM A-108 Grade 1018, UNS G10180, be considered S-1material?
Reply: Yes.
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Interpretation: IX-92-99Subject: QW-432.6, F-Numbers; and Section II, Part C SFA-5.92Date Issued: June 10, 1994
File No: 93-762 and 93-769
Question: May AWS 5.24 ER Zr4 be considered as an F-No. 61 filler metal?
Reply: Yes.
VOLUME 36
Interpretation: IX-95-01Subject: QW-200.1(b), General Welding Procedure Qualifications; and QW-402.4, JointsDate Issued: September 21, 1994
File No: 94-104
Question: If a WPS states that the GTAW process shall be used on root and second pass of open
root or metal backed groove joints and the SMAW process shall be used on the remainder of thegroove joint, is it necessary to state that the SMAW portion of the WPS must be performed with
backing (i.e., the GTAW process)?
Reply: No.
Interpretation: IX-95-02Subject: QW-462, Test Specimens
Date Issued: September 21, 1994File No: 94-181
Question: What are the minimum and maximum tolerances for specimens shown in QW-462,
where the figures show approximate dimensions?
Reply: As stated in the Foreword, The Code does not fully address tolerances. Whendimensions, sizes, or other parameters are not specified with tolerances, the values of these
parameters are considered nominal and allowable tolerance or local variances may be considered
acceptable when based on engineering judgment and standard practices as determined by thedesigner.
Interpretation: IX-95-03Subject: QW-202.2(b), Groove and Fillet Weld Tests; and QW-202.3(b), Weld Repair and
Buildup TestsDate Issued: September 21, 1994File No: 94-235
Background: Procedure qualification was performed by making a full penetration weld on 1 in.thick plate. Paragraph QW-202.2(b) states that qualification on 1 in. or thicker base metal
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qualifies for making partial penetration welds on base metals with no upper limit of base metalthickness. No minimum thickness of base metal is addressed.
Question (1): Does qualification of a 1 in. thick base metal qualify for making partial
penetration groove welds on base metals which are less than 3/16 in. thick?
Reply (1): No, see para. QW-451.1 for minimum base metal thicknesses.
Background: Procedure qualification was performed by making a full penetration weld on 1 in.
thick plate. Paragraph QW-202.3(b) states that qualification on 1 in. thick or thicker base metalqualifies for making weld repairs or weld build-ups on base metals of unlimited thickness.
Question (2): Does qualification on 1 in. base metal qualify for making weld repairs or weldbuild-ups on base metals which are less than 3/16 in. thick?
Reply (2): No, see para. QW-451.1 for minimum base metal thicknesses.
Interpretation: IX-95-04Subject: QW-452.3, Groove Weld Diameter Limits and Submerged Arc Wire Flux
CombinationDate Issued: September 21, 1994File No: 94-296
Question (1): According to para. QW-452.3, is the inside diameter an essential variable forperformance qualification?
Reply (1): No.
Background: A WPS for SAW process was qualified with a wire flux combination classified as
F6P0-EL8, using one trade name for flux. This WPS was in use for several years. Now the fluxmanufacturer has changed the classification to F7P2-EL8 without changing the trade name offlux. The flux trade name is mentioned on the WPS and PQR along with the former AWSclassification.
Question (2): Is it required to requalify this WPS due to the change in the AWS class of the wireflux combination by the flux manufacturer without changing its Trade Name?
Reply (2): Yes, see para. QW-404.9(a).
Interpretation: IX-95-05
Subject: QW-422, P-NumbersDate Issued: September 21, 1994File No: 94-365
Question: May SB-564 UNS N08825 be considered as P-No. 45, since it has identical propertiesto SB-425 UNS N08825 that is assigned P-No. 45 in QW-422?
Reply: No.
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Interpretation: IX-95-06Subject: QW-153.1, Tension TestsDate Issued: September 21, 1994
File No: 94-542
Question: If a tensile specimen breaks in the weld metal, below the weld metals minimumspecified tensile requirement, but not below the minimum tensile strength specified for the basemetal, is the PQR considered acceptable?
Reply: Yes.
VOLUME 37
Interpretation: IX-95-07Subject: QW-420.2, S-NumbersDate Issued: March 17, 1995
File No: 94-522
Question: When qualifying a welding procedure using S1 group 2 for API 5LX60 pipe joining to
MSS SP-75 or ASTM A860 WPHY-65 fittings, or when joining WPHY-60 fittings to each other,is it permissible to use the corresponding S-Number for the fitting as the same grade of highstrength pipe when the physical properties are similar?
Reply: No.
Interpretation: IX-95-08Subject: QW-462.4(a), Fillet Weld Procedure
Date Issued: March 17, 1995File No: 94-543
Question (1): When T2is greater than in. in Fig. QW-462.4(a), what is the maximum size filletweld required?
Reply (1): in.
Question (2): In QW-462.4(a), what does size of fillet = thickness T2 mean?
Reply (2): The length of each fillet leg(s) shall be nominally equal to the thickness of T2.
Question (3): Is there a tolerance for the fillet leg size?
Reply (3): No. As stated in the 1992 Addenda to the Foreword, when tolerances are notspecified, dimensions are considered nominal and allowable tolerances or local variances may be
considered acceptable when based on engineering judgment and standard practices as determinedby the designer.
Interpretation: IX-95-09
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Subject: QW-153, Acceptance Criteria Tension TestsDate Issued: March 17, 1995
File No: 94-570
Question: When welds between base metals of different minimum specified tensile strengths arebeing tested and tensile failure occurs in either of the base metals, does the reference to base
metal within QW-153.1(d) mean the base metal with the lower minimum specified tensilestrength?
Reply: Yes.
Interpretation: IX-95-10Subject: QW-200.4, Combination of Welding Procedures
Date Issued: March 17, 1995File No: 94-662
Question: May a single process WPS be qualified by a combination process PQR where no
essential variables for the process are changed?
Reply: Yes.
Interpretation: IX-95-11Subject: QW-408, GasDate Issued: March 17, 1995File No: 95-002
Question: Is it required to indicate the purity level by percent composition or descriptive terms of
a single shielding gas on the WPS and on the PQR?
Reply: No.
Interpretation: IX-95-12Subject: QW-202.4, Dissimilar Base Metal ThicknessesDate Issued: March 17, 1995File No: 95-027
Question: Does QW-202.4 include butt joints and corner joints when joining dissimilar basemetal thicknesses when prepared with a groove?
Reply: Yes.
Interpretation: IX-95-13Subject: QW-203, Limits of Qualified Positions for Procedures; and Section II, Part C,
SFA-5.1 and 5.5
Date Issued: June 15, 1995File No: 94-035
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Question: Do the requirements for classification of filler metals in accordance with ASMESection II, Part C apply to the qualification of welding and brazing procedures in accordance with
Section IX?
Reply: No.
Interpretation: IX-95-14Subject: QW-300.3, Welding Performance Qualifications
Date Issued: June 15, 1995File No: 95-040
Question: Are there any circumstances under which a non-employee person or organization canrepresent one or more participating organizations during welding of the test coupon in accordance
with the requirements of QW-300.3?
Reply: No.
Interpretation: IX-95-15Subject: QW-160, Guided-Bend Tests; and QW-466 Note (b) Test Jigs
Date Issued: June 15, 1995File No: 95-094
Question: Is it acceptable to measure the percent elongation of the tensile specimens in lieu ofbend specimens to measure the ductility for welding procedure qualification acceptance?
Reply: No.
Interpretation: IX-95-16Subject: QW-255, Welding Variables Procedure Specifications for FCAW; and QW-
408.2, GasDate Issued: June 15, 1995
File No: 95-095
Question: May a FCAW welding procedure, qualified without shielding gas, be used with ashielding gas without requalification?
Reply: No.
VOLUME 38
Interpretation: IX-95-17Subject: QW-302.4, Visual Examination
Date Issued: October 19, 1995File No: 95-035
Question (1): For the fillet weld coupon in welder performance qualification, does the macroexamination required per QW-452.5 exempt the visual examination required per QW-302.4?
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Reply (1): No.
Question (2): Does the visual examination of the fillet weld test coupon required per QW-302.4
refer to the final weld face side only?
Reply (2): Yes.
Interpretation: IX-95-18Subject: QW-409.8, Electrical CharacteristicsDate Issued: October 19, 1995
File No: 95-220
Question: Does Section IX require that a separate amperage range be specified for each fillermetal size listed in the WPS?
Reply: No.
Interpretation: IX-95-19Subject: QW-300.3, Welding Performance Qualifications; and QW-322.1(b), Expiration
of Welder QualificationDate Issued: October 19, 1995
File No: 95-221
Background: A welder simultaneously qualifies for ten different contractors in accordance withQW-300.3. QW-300.3 requires the contractor that rejects a welder to notify the other contractorswho participated in the simultaneous test that the welders qualification has been revoked. One of
the contractors subsequently revokes the welders qualification for specific reason in accordance
with QW-322.1(b).
Question (1): Are the other nine contractors who qualified the welder simultaneously, required torevoke the welders qualification per QW-322.1(b)?
Reply (1): No.
Question (2): When a participating contractor revokes a welders qualification for a specificreason, does QW-300.3 require the other participating contractors to retest the welder or welding
operator?
Reply (2): No.
Interpretation: IX-95-20Subject: QW-300, Welding Performance QualificationDate Issued: October 19, 1995File No: 95-302
Question: If the manufacturer or contractor writes the WPS, and the welder used to produce theweldments to be tested for qualification of procedures is under the full supervision and control of
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the manufacturer or contractor during the production of these test weldments, may the welder be acontracted employee, provided the Quality Control system or Quality Assurance Program of the
manufacturer or contractor describes the control of contracted welders?
Reply: Yes.
Interpretation: IX-95-21Subject: QW-403.5, Base Metals
Date Issued: October 19, 1995File No: 95-318
Background: A PQR is qualified in accordance with Section IX, with supplementary essentialvariables, using a material from British Standard 1501-224-490A-LT50
Question: May this PQR be used to support a WPS utilizing a P-Number 1, Group Number 2
material with supplementary essential variables?
Reply: No.
Interpretation: IX-95-22Subject: QW-424, Base Metals Used for Procedure QualificationDate Issued: December 28, 1995
File No: 95-251
Question: Does a procedure qualification using an unassigned metal to an assigned P-Numberedmetal qualify for welding the base metals to themselves using all the nonessential, essential andsupplementary essential variables qualified?
Reply: No.
Interpretation: IX-95-23Subject: QW-453, Notes (3) and (10), Thickness Limits and Test Specimens for Hard-
Facing and Corrosion-Resistant OverlaysDate Issued: December 28, 1995File No: 95-428
Question (1): Notes (3) and (10) of QW-453 require a liquid penetrant examination of the surfaceof the test coupon for hard-facing procedure and performance qualifications, respectively. Maythe acceptance standards of QW-195.2 or other standards deemed appropriate by the qualifying
organization be used as acceptance criteria?
Reply (1): Yes.
Question (2): Must the acceptance criteria be specified on the WPS?
Reply (2): Yes.
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VOLUME 39
Interpretation: IX-95-24Subject: QW-403.1, Base Metals
Date Issued: March 19, 1996File No: 95-194
Question: Does a WPS qualified using P-No. 1, Group No. 1 material, qualify welding for P-No.1, Group No. 2 material, when notch toughness tests are not required?
Reply: Yes.
Interpretation: IX-95-25Subject: QW-201, Manufacturers or Contractors ResponsibilityDate Issued: March 19, 1996
File No: 95-252
Question: If company A purchases company B, is it permissible for company A to write WeldingProcedure Specifications (WPS) in their name, supported by Procedure Qualification Records(PQR) qualified by company B?
Reply: Yes.
Interpretation: IX-95-26Subject: QW-201, Manufacturers or Contractors ResponsibilityDate Issued: March 19, 1996File No: 95-303
Background: Company A owns company B and changes its name to C. The new company Ccontinues to use the WPSs and PQRs initially developed by B. After some time, company A (the
parent company) splits C back to B and C. Both B and C now operate independently, but undercompany A.
Question: May company B use the WPSs and PQRs initially developed by B and also use WPSsand PQRs qualified by company C before the last reorganization?
Reply: Yes, provided that the requirements of QW-201 are satisfied.
Interpretation: IX-95-27
Subject: QW-201, Manufacturers or Contractors ResponsibilityDate Issued: March 19, 1996File No: 95-482
Question: May a subcontractor use a WPS supported by a PQR which was qualified by thecontracting company and subsequently supplied to the subcontractor?
Reply: No.
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Interpretation: IX-95-28Subject: QW-403.10, Short Circuiting ModeDate Issued: March 19, 1996
File No: 96-002
Question: Are the base metal thickness restrictions for the GMAW process short circuiting modestated in QW-403.10 and QW-404.32 also applicable to fillet weld tests, either in procedurequalifications (QW-451.3, QW-451.4) or in performance qualifications (QW-452.4, QW-452.5
and QW-452.6)?
Reply: No.
Interpretation: IX-95-29Subject: QW-201, Manufacturers or Contractors Responsibility
Date Issued: May 30, 1996File No: 95-302
Question: If more than one manufacturer or contractor agrees upon the use of one WPS, which isto be followed during production of test weldments for qualification testing, may the welder used
to produce the weldments to be tested for qualification procedures, be under the full supervisionand control of each manufacturer or contractor during the welding, provided the Quality ControlSystem or Quality Assurance Program of each manufacturer or contractor describes the control of
welders?
Reply: Yes.
Interpretation: IX-95-30
Subject: QW-350, Welding Variables for WeldersDate Issued: May 30, 1996File No: 96-073
Question (1): Do the essential variables of QW-350 apply to welding operators carrying outcorrosion resistant overlay?
Reply (1): No.
Question (2): Are welding operators qualified for submerged arc welding, also qualified forElectroslag welding and vice versa?
Reply (2): No.
Question (3): Is a welding operator qualified to QW-360 and QW-381 of Section IX insubmerged arc weld overlay using wire electrode, also qualified to use strip electrodes with thesame process?
Reply (3): Yes.
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Interpretation: IX-95-31Subject: QW-361.2, Essential Variables Machine Welding
Date Issued: May 30, 1996File No: 96-141
Background: A welding operator has direct visual contact with a pipe weldment that is being
welded utilizing machine orbital pipe welding equipment. This welding operator is giving verbalcommands to a second welding operator, who does not have eye contact with the weldment, andwho is positioning the weld head and wire aimers located on the head remotely, during the
welding of the joint in accordance with the verbal commands of the first operator. Each weldingoperator has been qualified to perform both remote and direct visual control welding.
Question: Are these welders qualified to make the subject weld in accordance with QW-361.2,even though the welding operator having direct visual control is directing the positioning of the
orbital pipe welding equipment verbally and does not have hands-on control of the weldinghead?
Reply: Yes.
VOLUME 40
Interpretation: IX-95-32Subject: QW-300.2, Welding Performance QualificationsDate Issued: July 1, 1996File No: 95-302
Question: If more than one manufacturer or contractor agrees upon the use of one WPS, which isto be followed during the production of test weldments for qualification testing, may the welderused to produce the weldments to be tested for qualification of procedures, be under the full
supervision and control of each manufacturer or contractor during the welding, provided theQuality Control System or Quality Assurance Program of each manufacturer or contractordescribes the control of welders?
Reply: Yes.
Interpretation: IX-95-33Subject: QW-403.10, Short-Circuiting ModeDate Issued: September 24, 1996File No: 96-001
Question: Does QW-403.10 limit the base metal thickness qualified to 1.1T for a combinationGMAW-S/SMAW PQR test coupon thickness T less than in., when used to support acombination GMAW-S/SMAW WPS?
Reply: Yes.
Interpretation: IX-95-34Subject: QW-202.3, Weld Repair and Buildup
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Date Issued: September 24, 1996File No: 96-060
Background: Assurance of defect-free hardfacing deposits on cast surfaces is often improved if a
layer of weld metal is first deposited on the casting, acting as a substrate for the subsequenthardfacing weld metal overlay.
Question (1): Does Section IX require qualification of the substrate (e.g., in accordance withQW-202.3 or when the substrate is not included in the design minimum wall thickness in
accordance with QW-214) which will be subsequently covered by a hardfacing weld metaloverlay?
Reply (1): Yes.
Question (2): If the deposit of the substrate is included in a hardfacing weld metal overlayprocedure qualified to QW-216, is evaluation of the substrate to QW-202.3 or QW-214, as
applicable, required?
Reply (2): Section IX does not address qualification of a combination substrate/hardfacing WPSin a single coupon.
Interpretation: IX-95-35Subject: QW-300.1, Welding Performance Qualifications
Date Issued: September 24, 1996File No: 96-287
Question: Is it permissible to use ultrasonic examination in lieu of radiography to qualify weldersand welding operators in accordance with QW-300.1?
Reply: No.
Interpretation: IX-95-36Subject: QW-300, Welding Performance QualificationsDate Issued: September 24, 1996File No: 96-314
Question (1): Would the successful qualification of a welder in a manual or semi-automatic
method qualify him to weld in production using a machine or automatic method in the sameprocess?
Reply (1): No.
Question (2): Since the essential variables are the same for both methods, would successfulqualification with testing in manual GTAW allow the same welder to weld in production using
semi-automatic GTAW without testing?
Reply (2): Yes.
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Interpretation: IX-95-37Subject: QW-404.9, Filler Metals
Date Issued: September 24, 1996File No: 96-315
Question: In accordance with QW-404.9(c), does a change in the wire classification shown in
SFA-5.9, with no change in the flux composition, F-Number, or A-Number, require procedurerequalification?
Reply: No.
VOLUME 41
Interpretation: IX-95-38Subject: QW-322, Expiration and Renewal of Qualification
Date Issued: January 6, 1997File No: 96-132
Question: Is it a requirement of QW-322 for a manufacturer to maintain records to demonstrate awelders or welding operators continuing qualification for a process from the date of the original
qualification test?
Reply: Section IX does not address how conformance to QW-322 is demonstrated. Other book
sections my address the maintenance of records.
Interpretation: IX-95-39Subject: QW-304, Performance Qualification Welders
Date Issued: January 6, 1997
File No: 96-331
Question (1): Would the successful performance qualification of a welder in a manual or semi-automatic type (e.g., GMAW, GTAW, SAW) per QW-304 qualify the same welder to operate as
welding operator in machine or automatic type welding?
Reply (1): No.
Question (2): If a welder used GMAW (short-circuiting mode) for the root pass and SAW for the
hot and fill passes of test coupon, may the test coupon be testing using radiography for the SAWportion of the weld, in accordance with QW-304 and QW-306?
Reply (2): Yes.
Interpretation: IX-95-40Subject: QW-201, Manufacturers or Contractors ResponsibilityDate Issued: January 21, 1997
File No: 93-431 and 95-222
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Background: Company A was a subsidiary of Company B. Company B sold Company A toCompany C, and Company A became a division of Company C.
Question: May Company A continue to use WPSs and PQRs previously developed by Company
B?
Reply: It is the intent of the Coe that when a manufacturer or contractor, or part of amanufacturer or contractor, is acquired by a new owner(s), the PQRs and WPSs may be used bythe new owner(s) without requalification, provided all of the following are met:
(a) the new owner(s) takes responsibility for the WPSs and PQRs;(b) the WPSs reflect the name of the new owner(s); and(c) the Quality Control System/Quality Assurance Program reflects the source of the PQRs
as being from the former manufacturer or contractor.
Interpretation: IX-95-41Subject: QW-453, Procedure/Performance Qualification Thickness Limits and Test
Specimens for Hardfacing (Wear-Resistant) and Corrosion-Resistant Overlays
Date Issued: March 6, 1997File No: 97-028
Background: Corrosion-resistant weld overlay on P-No. 1 material needs to be carried out withNickel-Aluminum Bronze using E CuNiAl SMAW electrode (F-No. 37) and ER CuNiAl GMAWfiller wire (F-No. 37).
Question: For procedure qualification of the above to QW-453, can side bend test specimens of in. thickness be used, bent to inner diameter of 2 1/16 in., as given for P-No. XX with F-No. 36under QW-466.1?
Reply: No.
Interpretation: IX-95-42Subject: QW-284, Seam Welding Equipment Qualification
Date Issued: May 20, 1997File No: 97-044
Background: When qualifying resistance seam welding equipment for QW-284, testing andacceptance criteria shall be in accordance with QW-196. QW-196.2.1 addresses shear test
specimens, but only deals with spot welding.
Question (1): When qualifying seam welding equipment, do the requirements for spot shear test
per QW-196.2.1 apply?
Reply (1): No.
Question (2): Do the rules of QW-286 for procedures qualification apply for equipmentqualification?
Reply (2): No.
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VOLUME 42
Interpretation: IX-98-01Subject: QB-141.4, Sectioning TestsDate Issued: December 15, 1997
File No: 97-304
Question: In QB-451.3, Note (1), is the Sectioning Test a substitute for the Peel Test?
Reply: Yes.
Interpretation: IX-98-02Subject: QW-201, Manufacturers or Contractors ResponsibilityDate Issued: December 15, 1997
File No: 97-309
Question: May a manufacturer use another organizations Welding Procedure Specifications infabrication of pressure vessels contracted to that organization, if the manufacturer works tospecifications controlling all fabrication processes from material procurement to final delivery,including QC examination provided by the contracting organization?
Reply: No.
Interpretation: IX-98-03Subject: QW-451, Procedure Qualification Thickness Limits and Test SpecimensDate Issued: December 15, 1997
File No: 97-479
Question: Does a partial penetration groove weld procedure qualification test assembly qualifyfor full penetration production groove welds within the ranges indicated in QW-451?
Reply: Yes.
Interpretation: IX-98-04Subject: QW-200.2, Welding Procedure Qualifications
Date Issued: December 15, 1997File No: 97-481
Question: Does ASME Section IX require that a preliminary WPS be attached to the PQR?
Reply: No.
VOLUME 43
Interpretation: IX-98-05Subject: QW-453, Procedure/Performance Qualification Thickness Limits and Test
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Specimens for Hardfacing (Wear-Resistant) and Corrosion-Resistant OverlaysDate Issued: April 28, 1998
File No: 98-009
Question: In making repairs to hardfacing weld metal overlays, does the existing hardfacing weldmetal overlay deposit to be repaired, constitute a change in the original essential variable(s) (e.g.,
base material, thickness, etc.) thus requiring a new qualification?
Reply: No.
Interpretation: IX-98-06Subject: QW-402.12(a) and (c) and QW-402.12, JointsDate Issued: April 28, 1998
File No: 98-009
Question: Do the words any change exceeding 10%, changegreater than 10%, achangegreater than 10%, and an increase or decrease of more than 10%, respectively, all
indicate a qualified range of 10% above and 10% below the value recorded in the PQR?
Reply: Yes.
Interpretation: IX-98-07Subject: QW-410.42, TechniqueDate Issued: April 28, 1998File No: 97-302
Question (1): For PAW hardfacing and corrosion resistant weld metal overlay qualifications,
may the full range of oscillation qualified (including the change of more than 10%) also apply
to the combined minimum and maximum oscillation range qualified? (e.g., would the rangequalified for a 1 in. oscillation combined with a 1.5 in. oscillation be 0.9 in 1.65 in.)
Reply (1): Yes.
Question (2): May the minimum and maximum oscillation values be combined and qualified ona single hardfacing weld metal overlay test coupon, assuming all other essential variables are thesame?
Reply (2): Section IX does not prohibit the qualification of more than one set of essentialvariables on a single test coupon, provided each set of essential variables is tested in accordance
with the requirements of Section IX.
Interpretation: IX-98-08Subject: QW-432, F-Numbers
Date Issued: April 28, 1998File No: 98-131
Question: A WPS is qualified with an SMA electrode that is not certified by the manufacturer asconforming to an AWS classification. Are welders who were previously qualified with an
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electrode classified as F-4, also qualified to use this unclassified electrode that conforms to thedeposit chemistry of EXXXX-G, in Table 2 of SFA-5.5 (within the other limitations of QW-
350)?
Reply: No.
VOLUME 44
Interpretation: IX-98-09Subject: QW-150 and QW-462.1, Tension Test Specimens for Pipe and PlateDate Issued: October 9, 1998
File No: 97-302
Question: Would tensile tests performed in accordance with SA-370 be acceptable for meetingASME Section IX, QW-462.1(a) and (b)?
Reply: No.
Interpretation: IX-98-10Subject: QW-407.1, Post Weld Heat TreatmentDate Issued: October 9, 1998File No: 97-306/97-308
Question: Is it the intent of Section IX in QW-407.1 to permit reporting the results of more than
one PWHT condition on a single report, with a single PQR number, provided all the otherapplicable essential and supplementary essential variables are identical and all required tests areconducted and reported for both conditions?
Reply: Yes.
Interpretation: IX-98-11Subject: QW-300, Welding Performance QualificationsDate Issued: October 9, 1998File No: 98-133
Question: May Company A retain the Company B employee responsible for welder performance
qualification, to review the welder qualification documents of both companies and qualify thewelders of Company B to the welding program of Company A without further testing of thewelders?
Reply: No.
Interpretation: IX-98-12Subject: QW-451, Procedure Qualification Thickness Limits and Test Specimens
Date Issued: October 9, 1998File No: 98-237/98-238
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Question: May longitudinal bend specimens be used in lieu of transverse bend specimens whenthe base metals or the base metal and the weld metal do not differ markedly in bending
properties?
Reply: No.
Interpretation: IX-98-13Subject: QW-200.1, Welding Procedure Qualifications
Date Issued: December 22, 1998File No: 98-239
Question: Are all-encompassing terms acceptable when addressing nonessential variables in aWPS (e.g, for backing, with or without, for root spacing, unlimited)?
Reply: Section IX does not specify how nonessential variables are to be addressed; however, the
terms must provide direction to the welder/welding operator for making production welds toCode requirements.
Interpretation: IX-98-14Subject: QW-361.2, Machine Welding Variables for Welding Operators; and QW-381,
Corrosion-Resistant Weld Metal OverlayDate Issued: December 22, 1998
File No: 98-447
Background: A multiple layer corrosion-resistant weld metal overlay performance qualification(machine welding) is made with the first layer under Direct Visual control and the second layerRemote Visual control.
Question (1): Is the welding operator qualified for both Direct and Remote Visual controltechniques applied either in single or multiple layers?
Reply (1): Yes.
Question (2): For the qualification described in the background, may two welding operatorsqualify on one coupon, provided the requirements of QW-453 and QW-361.2 (which delineatethe welding operators limits of qualification as per QW-306) are addressed?
Reply (2): Yes.
Interpretation: IX-98-15Subject: QW-405.3, PositionsDate Issued: December 22, 1998File No: 98-448
Question: May a single-pass seal weld as defined in QW-492, used to seal boiler tubes to a
boiler tube sheet, be considered a cover pass or a wash pass for purposes of exemption formQW-405.3?
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Reply: No.
Interpretation: IX-98-16Subject: QW-462.5(a), Chemical Analysis and Hardness Specimen Corrosion-Resistant
and Hard-Facing Weld Metal Overlay
Date Issued: December 22, 1998File No: 99-453
Question: Is it permissible to use the surface of the test coupon as the approximate fusion linewhen determining the minimum finished thickness for corrosion-resistant and hard-facingoverlays in accordance with QW-462.5(a)?
Reply: Yes.
VOLUME 45
Interpretation: IX-98-17Subject: QW-453, Procedure/Performance Qualification Thickness Limits and Test
Specimens for Hard-Facing (Wear Resistant) and Corrosion-Resistant Overlays
Date Issued: March 23, 1999File No: 98-055
Question: When performing corrosion-resistant weld metal overlay welding operatorqualification using a machine GTAW process, are the limitations on thickness qualified per QW-
453 applicable?
Reply: Yes.
Interpretation: IX-98-18Subject: QW-201.1, Manufacturers or Contractors ResponsibilityDate Issued: March 23, 1999
File No: 99-025
Background: When one of a companys plants is sold, it is not clear if the new owner can use theWelding Procedure Specifications (WPS) and Procedure Qualification Records (PQR) qualified
by the original company, when the original company wishes to continue using those WPSs/PQRs.
Question: Company A sells one of its plants to Company B. May both Company A and
Company B use the WPSs/PQRs previously qualified by Company A?
Reply: Yes, provided the requirements of QW-201.1 are addresses by Company B.
VOLUME 46
Interpretation: IX-98-19Subject: QW-404, Filler MetalsDate Issued: September 24, 1999
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File No: 99-409
Question: Is requalification required when the filler metal specified in the WPS and supportingPQR is moved from one SFA specification to another SFA specification, or the AWS
classification is changed, or when a previously unclassified filler is classified by the filler metalmanufacturer as conforming to an SFA specification?
Reply: No.
VOLUME 47
Interpretation: IX-98-20RSubject: QW-202.4(b), Dissimilar Base Metal ThicknessDate Issued: June 8, 2000
File No: 99-539
Question: When welding a corner joint with dissimilar base metal thickness, the thickness ofboth members must be within the qualified thickness range of the WPS(s) being used. How is the
thickness for the thicker member defined in sketches (a), (b) and (c) below?
Reply: For sketch (a), the thicker of Torts. For sketch (b), the thicker ofTor ts. For sketch (c),
the thicker of flange aor hub b.
VOLUME 48
Interpretation: IX-01-01Subject: QW-403, Base Metal Requirement; QW-404, Filler Metal RequirementDate Issued: October 11, 2000
File No: 00-514
Question (1): If a WPS is written using the GMAW-S process alone, is Tlimited to 1.1TperQW-403.10 and tlimited to 1.1tper QW-404.32?
Reply (1): Yes.
Question (2): If a WPS is written using FCAW process alone, is Tlimited to 2Tper QW-403.8and tlimited to 2tper QW-404.30?
Reply (2): Yes.
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Interpretation: IX-01-02Subject: QW-201, Manufacturers or Contractors ResponsibilityDate Issued: October 11, 2000
File No: 00-553
Background: A large majority of fabrication, contracted by a design Company A, is performedby Manufacturers B and C. Each company is independent in ownership from the other two.Companies A, B and C have developed a Welding Coalition. The top management of all three
companies has executed an Agreement and Commitment protocol, consenting to theestablishment of the Welding Coalition. The Welding Coalition controls all weld proceduresdeveloped for use on Company A contracts by Companies B and C, under one designated
program. The Coalition does not control production welding at either of the manufacturingcompanies. Weld procedure qualifications performed by Company C are controlled by Company
As Quality Program. Weld procedure qualifications performed by Company B are controlled byCompany Bs Quality Program that has been approved by Company A. Company C is on
Company Bs Approved Vendors List.
Question: Is it permissible to consider the Welding Coalition as the organization which hasresponsible operational control of production of the weldments to be made in accordance withthis Code, such that Company B may use weld procedures qualified by Company C and viceversa?
Reply: No.
Interpretation: IX-01-03Subject: QW-194, Visual ExaminationsDate Issued: January 3, 2001
File No: 00-519
Question: Is a welders performance qualification test coupon, in which undercut is present,acceptable, provided that the rest of the examinations and tests are acceptable?
Reply: Yes. However, manufacturers may disqualify welders based on QW-301.2 whendiscontinuities, such as undercut and porosity, do not comply with the quality requirement of themanufacturer.
Interpretation: IX-01-04Subject: QW-304.1, Welders Test Coupon ExaminationDate Issued: January 3, 2001
File No: 00-653
Question: Does QW-304.1 require that when radiography is used for examination of welder testcoupons for performance qualification, the visual examination per QW-302.4 be performed anddocumented on the Welder/Welding Operator Performance Qualification record?
Reply: No.
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Interpretation: IX-01-05Subject: QW-200.2, Welding Procedure Qualification
Date Issued: January 3, 2001File No: 00-654
Question: When a nonessential variable is recorded on a PQR, may a new or revised WPS
supported by the PQR specify a different range for that nonessential variable from that recordedon the PQR?
Reply: Yes.
Interpretation: IX-01-06RSubject: QW-410.51, Addition/Deletion of Oscillation (1998 and Earlier Editions)
Date Issued: February 9, 2001File No: 98-240
Background: QW-410.51, addition or deletion of oscillation is an essential variable for GTAW
hard-facing. QW-410.1, addition or deletion of weave bead is not a variable for the GTAW hard-facing process.
Question: Is it the intent of Section IX that a PQR developed with a machine or automaticGTAW hard-facing process, with or without oscillation, may be used to qualify a WPS for amanual, or a semiautomatic GTAW hard-facing process, with or without weave?
Reply: Yes. Note that recent actions by Section IX have defined oscillation as applicable to
machine and automatic processes and weave as applicable to manual and semiautomaticprocesses.
VOLUME 49
Interpretation: IX-01-07Subject: QW-420.2, Material GroupingDate Issued: June 4, 2001File No: 01-029
Background: A PQR is qualified on a P-Number X material to a P-Number Y material.
Question (1): Does this PQR support a WPS for welding P-Number X to S-Number Y withoutchanges to any other essential variables?
Reply (1): Yes.
Question (2): Does this PQR support a WPS for welding S-Number X to S-Number Y withoutchanges to any other essential variables?
Reply (2): Yes.
Interpretation: IX-01-08
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Subject: QW-300.2, Transfer of Record of Performance QualificationDate Issued: February 26, 2001
File No: 01-030
Question: When a new owner acquires a company, or part of a company, does QW-300.2prohibit continued use of existing welder performance qualifications?
Reply: No. Section IX does not address rules applicable to performance qualification continuitywhen a new owner acquires a manufacturer or contractor. If welder performance qualification
continuity is to be maintained by the new owner, the Quality Control System/Quality AssuranceProgram should reflect to the source of the welder performance qualification records as beingfrom the former manufacturer or contractor.
Interpretation: IX-01-09Subject: QW-356, Welding Variables
Date Issued: February 26, 2001File No: 01-032
Question: A welder was qualified to P-No. 1 material using the GTAW process without gasbacking using F-No. 6 filler material. Is he qualified to weld P-No. 8 material using the GTAW
process with gas backing using F-No. 6 filler material, provided all other essential variablesremain the same?
Reply: Yes.
Interpretation: IX-01-10Subject: QW-144 and QW-194, Visual Examinations
Date Issued: February 26, 2001
File No: 01-073
Question: Are the requirements of QW-144 and QW-194 for visual examination of the testcoupon required for the qualifications of a welding procedure?
Reply: No.
Interpretation: IX-01-11Subject: QW-510 and QW-540 in Article V, Standard Welding Procedure SpecificationsDate Issued: June 4, 2001File No: 01-089
Question (1): Under QW-510(d), is it acceptable to weld the demonstration test coupon with onlyGTAW if the SWPS is for combination GTAW root and SMAW E7018 fill?
Reply (1): No. All variables of the SWPSs are considered to be essential variables.
Question (2): Under QW-510(d), is it acceptable to weld the demonstration test coupon with onlySMAW E7018 if the SWPS is for combination GTAW root and SMAW E7018 fill?
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Reply (2): No. All variables of the SWPSs are considered to be essential variables.
Question (3): Under QW-510(d), is it acceptable to weld the demonstration test coupon with onlySMAW E7018 if the SWPS specifies both E6010 and E7018?
Reply (3): No. All variables of the SWPSs are considered to be essential variables.
Question (4): Does Section IX, Article II apply when the fabricator chooses to use SWPSs?
Reply (4): No. Ref. para. QW-100.1.
Question (5): When using SWPSs under Article V of Section IX, may a single welding processof a multiple SWPSs be used to complete a weld?
Reply (5): No. Ref. paras. QW-540(a) and (c).
Question (6): When using SWPSs under Article V of Section IX, may a single process SWPS forE7018 and a single process SWPS for GTAW be used to complete a weld, assuming all other
variables are within the SWPS parameters?
Reply (6): No. Ref. paras. QW-540(a) and (c).
Question (7): When using SWPSs under Article V of Section IX, may a single process SWPS forE7018 and a single process SWPS for E6010 be used to complete a weld, assuming all other
variables are within the SWPS parameters?
Reply (7): No. Ref. paras. QW-540(a) and (c).
Interpretation: IX-01-12
Subject: QW-322.2(a) and QW-452.1, Rule Change Affecting Welder QualificationDate Issued: June 4, 2001File No: 01-201
Background: ASME Section IX, 2000 Addenda, revised Table QW-452.1 reducing the couponsize from in. to in. to qualify the welder for Maximum to be welded when welding aminimum of three layers.
Question (1): A welder qualified prior to the 2000 Addenda, and has remained qualified since his
original test. His original test coupon consisted of at least three weld layers and greater than in.but less than in. deposited weld metal. May the qualification recorded be revised from 2t toMax. to be welded subsequent to the 2000 Addenda?
Reply (1): Yes.
Question (2): A welder was qualified prior to the 2000 Addenda. His qualification has lapsed
due to not welding with the original weld process for greater than 6 months. His original testcoupon consisted of at least three layers and greater than in. but less than in. deposited weld
metal. His renewal restores his original qualifications in accordance with QW-322.2(a). May theoriginal qualification record be revised from 2t to Max. to be welded subsequent to the 2000Addenda?
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Reply (2): Yes.
Interpretation: IX-01-13Subject: References to Edition and Addenda
Date Issued: June 26, 2001File No: 01-570
Question (1): The 1998 Code Edition, as published, incorporates the 1998 Addenda. Whenproviding reference to this Code Edition and Addenda within a Code-required document, mayonly the Edition be listed (i.e, 1998 Edition)?
Reply (1): Yes.
Question (2): For the 1998 Edition only, is it necessary to revise Code-required documentation
where the term 1998 Edition was used as meaning the 1995 Edition through the 1997Addenda?
Reply (2): No.
VOLUME 50
Interpretation: IX-01-14Subject: QW-500, The Use of SWPSs
Date Issued: September 25, 2001File No: 01-332
Question: May a manufacturer or contractor adopt and use SWPSs in accordance with the rules
of Article V for work on Code items built to an edition or addenda prior to the 1998 edition withthe 2000 Addenda, provided the construction code does not prohibit the use of SWPSs?
Reply: Yes.
Interpretation: IX-01-15Subject: QW-300.2, Employers ResponsibilityDate Issued: September 15, 2001File No: 01-641
Background: Section IX requires that the manufacturer, contractor, assembler, or installer be
responsible for conducting tests to qualify the performance of welders which his organizationemploys in construction of weldments built in accordance with the Code. It also requires thatthe manufacturer, contractor, assembler, or installer provide supervision and control over welderswhile they are welding test coupons for performance qualification.
Question (1): An employee of a contractor provides supervision and control over a welder duringwelding of a test coupon, but that welder is not an employee of the contractor at the time of thetest. Is it required that the welder be an employee of that contractor at the time of qualificationtesting?
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Reply (1): No.
Question (2): Must the welder be an employee of any manufacturer or contractor at the time of
qualification testing?
Reply (2): No.
Interpretation: IX-01-16Subject: Code Case 2142-1 and 2143-1Date Issued: December 18, 2001
File No: 01-641
Background: The submerged are welding process is being used to deposit corrosion-resistantweld overlay for Section III, Subsection NB fabrication using a NI-Cr-Fe alloy strip filler metal
and flux combination. The strip filler metal does not meet the chemical requirements of CodeCase 2142-1 (bare electrode and rod), but both filler metal and weld deposit meet the chemical
composition limits of Code Case 2143-1 (covered electrodes).
Question (1): Must the Ni-Cr-Fe alloy strip filler metal used for the SAW process meet the
chemical composition requirements of Code Case 2142-1 to be classified as F-43 for procedureand performance qualifications?
Reply (1): Yes.
Question (2): May Ni-Cr-Fe alloy filler metal that is not designated as F-43 per Code Case 2142-1 be used for welding if the welding procedure is qualified separately per QW-404.37?
Reply (2): Yes.
Qu
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