2011+addenda+asme+code+synopsis+by+one cis+insurance+co

OneCIS Insurance Company 390 Benmar Drive Houston, TX 77060

Main: (800) 343-1192 Fax: (281-986-1379 www.us.bureauveritas.com

1

A SUMMARY OF CHANGES TO THE ASME CODES

2011 ADDENDA

FOR

SECTIONS I, II, IV, VIII, DIV’s 1, 2 AND 3, AND IX

COMPILED BY

ONECIS INSURANCE COMPANY

Please Note: This summary of changes to follow for the referenced Code Sections, of the ASME Code is not all inclusive and contains the changes we consider most important to our clients. Please remember to use the Code for actual requirements.



2

TABLE OF CONTENTS

Page 1 Section I Page 13 Section II Page 17 Section IV Page 26 Section VIII, Div. 1 Page 50 Section VIII, Div. 2 Page 53 Section VIII, Div. 3 Page 55 Section IX



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SECTION I

Summary of changes for the ASME Code 2011 Addenda



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SECTION I GENERAL This summary of changes to Section I of the ASME Code is not all inclusive and contains the changes we consider most important to our clients. Please remember to use the Code for actual requirements. The 2011 Addenda to the Code become mandatory January 1, 2012. This addenda was printed on white paper and was printed in its entirety. Also please note that Footnotes have been changed to Endnotes and these endnotes are part of the Standard. ASME will no longer issue addenda. The next edition of the Code will be issued in 2013 and then issued every 2 years thereafter. Code Case Supplements will be published two times a year. Interpretations will be posted on the ASME website at http://cstools.asme.org/Interpretations.cfm in January and July of each year. What ASME calls a “Special Notice” may be posted on the website prior to the 2013 Edition to provide approved revisions to Code requirements. These revisions may be used upon issuance but become mandatory 6 months after issuance. “Errata” to the Code will also be posted on the ASME website to provide corrections. Errata are typographical or grammatical errors. These “Special Notices” and “Errata” can be found at http://www.asme.org/kb/standards/publications/bpvc-resources or http://cstools.asme.org/BPVErrataAndSpecialNotice.cfm



5

SECTION I GENERAL

The ASME is phasing out multiple stamps and moving to a single mark. The major driver behind this change is to fully protect the marks. As the ASME needs to register marks in the more than 100 countries in which stamped equipment is used, the use of a single mark allows ASME to register one mark in these countries thus making it easier to afford greater protection of a single mark rather than lesser protection for multiple marks. The proposed schedule for implementing the move to a single ASME certification mark will be publication in the 2011 Addenda to the Code. There will be a transition period during which a Manufacturer or Constructor would be able to use either one of the 25 applicable current marks or the single mark. Use of the single mark would then become mandatory on January 1, 2013. There will be a policy statement in the front of the ASME Code books describing this transition period and an implementing Code Case in both the BPV and Nuclear Code Case Books. Each stamp holder must go to ASME’s CA connect (http://www.caconnect.asme.org), establish an account if they have not already and request the new Mark. ASME will not be sending individual notifications of this to the stamp holders – It is up to the stamp holders to independently request this new mark An example of how the stamping may appear In the case of Section I, the Designator that will appear directly under the Certification Mark as “S”, “A" or “PP".

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SECTION I, PART PG

PG-8.1.4.2 PG-67.7 was deleted in the 2009 Addenda. The reference in PG-8.4.1.2 to this paragraph was deleted.

PG-13 Added CSA-G40.21 Grades 44W and 50W material to PG-13 PG-16.6 An action is being proposed to bring the Forewords of all BPV Sections up to date, and to remove from the Forewords any paragraphs that embody rules, since it has been determined that the Forewords are not “part of the Code” and cannot contain enforceable rules. Paragraph PG-16.6 was added to add the statement from the Forward addressing tolerances. This was added here because many feel that Forwards are not a part of the Code. Since the tolerance statement is mandatory language it was felt it needed to be added to the body of the Code.



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SECTION I, PART PG (Continued)

PG-22.1 The purpose of this item is to clarify the requirements of PG-22. The second sentence of PG-22.1 contains the phrase “average stress” which is not defined in the Code and is used generically in the literature thus being ambiguous. This proposal replaces the current sentence with two sentences the first statement that Section I does not address stresses due to additional loadings, and the second states that such loadings shall be addressed by the Manufacturer based on engineering judgment and Code philosophy and points the user to PG-16.1 for guidance This paragraph was revised to say “This Section does not fully address additional loading other than those from working pressure or static head. Consideration shall be given to such additional loading. (See PG-16.1).” This replaced the second and third sentences in that paragraph. PG-27.4.4 Note 4 This paragraph was revised to indicate that e = 0 for “tubes strength-welded to tubesheets, headers and drums. Strength-welded tubes shall comply with the minimum weld sizes of PW-16.” This was revised to add tubesheets. Please note that “Strength Weld” referred to here relates to a weld used to attach a tube and therefore the tube does not need expanding. Weld Strength referred to in PW-15 refers to adequate weld strength to attach elements of reinforcement.



9

SECTION I, PART PG (Continued) PG-28 Section I up to this point did not address external pressure except for firetube boiler furnaces in PFT-51 and manway openings in PG-28. This left out some items such as drum heater coils. PG-28 has been revised to address cylindrical components under external pressure by referring to PFT-51.4. Summary of Changes Added new title PG-28 COMPONENTS UNDER EXTERNAL PRESSURE PG-28.1 THICKNESS OF CYLINDRICAL COMPONENTS UNDER EXTERNAL PRESSURE (PFT-50 paragraph has been revised and moved to PG-28.1) PG-28.2WELDED ACCESS OR INSPECTION OPENINGS UNDER EXTERNAL PRESSURE PG-28.3 MAXIMUM ALLOWABLE EXTERNAL WORKING PRESSURE FOR CYLINDRICAL COMPONENTS (PFT-51 has been revised and moved to PG-28.3) PG-31.2 The symbol for gasket moment is in PG-31.2 was different than in Figure PG-31. Paragraph revised from hg to hG. PG-32.1.4(a) Revised to clarify intent



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SECTION I, PART PG (Continued) PG-33.1 The formula for A1 was revised to account for the fr factor. Up to this point, the formula did not account for the situation where a weaker material was used for nozzles inserted into the vessel wall. The term Wd was added as the width of the nozzle inserted into the vessel wall beyond tn. Wd = not greater than the larger of D/2-tn or t (See Fig. PG33.2) Note, the Wd applies to integrally reinforced nozzles per Fig UG-33.2.

Fig. PG-33.2 Revised to show Wd PG-33.1, A-66 and A-69 Revised examples with regards to the addition of the term Wd. PG-33.3 Revised the nomenclature for fr1 to be equal to Sn/Sv for all nozzles, not just those inserted through the vessel wall. Also, an example problem in A-67 was corrected to square the term WL3. PG-49 Revised to limit the allowable stress for steam locomotives to 7500 psi to comply with the Federal Railroad Administration.



11

SECTION I, PART PG (Continued) PG-52.3 This paragraph was completely revised by deleting the present existing words and adding rules to establish equivalent longitudinal efficiency for circumferential ligaments for use in design formula of PG-27.2.2, A-125 and A-317. This clarifies that the designer can double the circumferential efficiency to establish the equivalent longitudinal efficiency to use in the design formula. PG-52.5 Added “For all tube hole pattern arrangements, the equivalent longitudinal ligament efficiency for any diagonal and circumferential ligaments shall be calculated and compared to the longitudinal ligament efficiency. The lesser value of the longitudinal ligament efficiency or the equivalent longitudinal ligament efficiency shall be used to calculate the minimum required thickness and maximum allowable working pressure for the associated cylindrical section.” PG-52.6 Added “pc” for circumferential pitch Also, the reference to Fig PG-52.6 was incorrect since there is no Fig PG-52.6. This reference was changed to PG-53.3 PG-60.1.6 Revised to add “A means of manually opening and closing the valves from the valve operating floor or platform shall be provided.” This insures that gage glasses will be blown down and done in a safe manner. Also editorially changed acceptance to acceptable.



12

SECTION I, PART PG (Continued) PG-72.2 An editorial correct was made to the table in PG-72.2 by inserting the greater than symbol in front of the number 70 in the second row. Also, references to A-300 were corrected to reference A-301 and A-302. PG-106.4.2 Deleted the word “steel” where it appears before the word “Economizer.” PART PW PW-28.2 Revised to say “volumetric NDE” instead of just radiography for welder qualifications to bring Section I in line with the new Section IX allowing the use of UT. PW-39 Revised to allow PWHT exemptions to be based only on nominal thickness as defined in PW-39.3 and notes (a)(3), (a)(4), (a)6), (a)(8) through (a)(10), (a)(12) (a)(13), and (c) were deleted and the remaining notes renumbered. Also please note, the reference to PW-34 in note (a)(1) and (2) to table PW-39.1 should be PW-39.3. PW-39.3 Revised to address cooling and heat up rates by reference to A-101. Also added definitions of nominal thicknesses for different types of welds.



13

SECTION I, PART PW (Continued) PW-40.3.4 Revised to allow the use of the temper bead technique as well as the half bead technique for weld repairs after PWHT.

SECTION I., APPENDICES A-65 Editorial changes to correct references to Figure PG-32 and making the correct reference to PG-32.1.4. A-68 Deleted the reference to Figure PG-32 and making the correct reference to PG-32.1.2 and PG-32.1.4. Also adds the calculations for Dmas. A-70 Editorial change to correct the calculation for A41 to show 0.3752 be multiplied by 1. A-101 As reverenced in PW-39, this is a new non mandatory appendix giving suggested guidance on heat up and cool down rates for PWHT. A-317 Revised to address the weld strength question as shown in PG-27.



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SECTION I, APPENDICES (Continued) A-360 Revised as follows: B31.1 update to 2009 from the 2007 edition, Revised PTC-25 from 2001 to 2008, Revised SNT-TC-1A to the 2006 Edition and Revised note 4. A-350 Changes the requirements for the AI to now to use their NB commission number and endorsements even if the item is not registered with the NB. A360 Revised Note 4 of Table A-360, to sztate: “The Manufacturer is cautioned that the O.D. tolerance used to calculate the values for dimensions C shown in Table 1 and Table I-1 may be different from the tolerance listed in the applicable material specification and that machining to this dimensions could result in a wall thickness (see PG-42.4.2), requiring further action by the Manufacturer.” DATA REPORT FORMS The current requirements for recording an Authorized Inspector’s National Board Commission and Endorsement on a Manufacturer’s Data Report (MDR) are: If the item is National Board stamped, the commission number and endorsement must be shown; If the item is not National Board stamped, only the inspector’s state or province number must be shown. This is in conflict with the requirements of QAI-1 which requires the Inspector to have a National Board Commission and Endorsement, yet the inspector may only record the information if the item is National Board stamped. Revise all Data Report Forms and Guides to instruct the Authorized Inspector to include his/her National Board Commission Number and endorsement when signing all ASME Data Report Forms.



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SECTION II




16

SECTION II

This summary of changes to Section II of the ASME Code is not all inclusive and contains the changes we consider most important to our clients. Please remember to use the Code for actual requirements. The 2011 Addenda to the Code become mandatory January 1, 2012. This addenda was printed on white paper and was printed in its entirety. Also please note that Footnotes have been changed to Endnotes and these endnotes are part of the Standard. ASME will no longer issue addenda. The next edition of the Code will be issued in 2013 and then issued every 2 years thereafter. Code Case Supplements will be published two times a year. Interpretations will be posted on the ASME website at http://cstools.asme.org/Interpretations.cfm in January and July of each year. What ASME calls a “Special Notice” may be posted on the website prior to the 2013 Edition to provide approved revisions to Code requirements. These revisions may be used upon issuance but become mandatory 6 months after issuance. “Errata” to the Code will also be posted on the ASME website to provide corrections. Errata are typographical or grammatical errors. These “Special Notices” and “Errata” can be found at http://www.asme.org/kb/standards/publications/bpvc-resources or http://cstools.asme.org/BPVErrataAndSpecialNotice.cfm

SECTION II PART A

SA-20 Adopted A-20/A20M-09 and deleted items covered in SA-941. Added paragraph 14.4 to discuss converting fractional inches to decimals. SA-265 Revised to adopt A263/A263M-09 and revised paragraph 7.2.1 to permit shear testing of thin clads. Also revised paragraph 13.2.2 to allow UT of thin clads. SA-264 Revised to adopt A264/A264M-09 and revised paragraph 7.2.1 to permit shear testing of thin clads. Also revised paragraph 13.2.2 to allow UT of thin clads SA-265 Revised to adopt A265/A265M-09 and revised paragraph 7.2.1 to permit shear testing of thin clads. Also revised paragraph 13.2.2 to allow UT of thin clads SA-353 Revised to adopt A353/A353M-09. Also, P and S limits were reduced to 0.015% . Ordering information was editorially revised.



17

SECTION II, PART A (Continued) SA-453 Revised to adopt A453/A453M-04 Added Gr 660 Class D. Now refers to general specification SA-962 and added threading requirements. Added rules for marking. ASTM oldest date allowable revised from -86 to 00. SA-533 Revised to adopt A533/A533M-09 Added Type E. P and S reduced from 0.035 to 0.025%. Heat treatment requirements were revised in paragraph 5.2 SA-537 Revised to adopt A537/A537M-08. Revised paragraph 5.1.2 to remove minimum tempering times. SA-542 Revised to adopt A542/A542M-09. P and S limits were reduced. Added paragraph 1.6 to address shipping in the as-rolled condition. Paragraph 5.4 was revised to address heat treatment. S-53 was added. SA-543 Revised to adopt A543/A543M-09 Added paragraph 1.5 to address shipping in the as-rolled condition. Paragraph 5.3 was revised to address heat treatment SA-553 Revised to adopt A553/A553M-06. Editorial revisions SA724 Revised to adopt A724/A724M-09. P and S limits reduced to 0.025%. Editorial changes to the ordering information. SA737 Revised to adopt A737/A737M-09 . P and S limits reduced to 0.025%. Editorial changes to the ordering information. Paragraph 1.5 was revised to address shipment in the as-rolled condition of Grade C. Paragraph 5.3 was revised to concerning heat treatment of Grade C. SA-738 Revised to adopt A738/A738M-07. Editorial changes only. SA-770 Revised to adopt A770/A 770M-03(R07) except for editorial correction to Table 2.]. Revised paragraph 4.4.3 to eliminate the prior purchaser approval on alternative test specimen.

SECTION II PART B SB-135 Revised to adopt ASTM B135-08a. Pb levels reduced for C27000, C27400 and C28000. SB-209 Revised to adopt ASTM B209-07. Grade 5052-H141 added. Increased the yield and tensile strengths of Grade 7075-T7351.



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SECTION II, PART B (Continued) SB-247 Revised to adopt ASTM B247-09. Now includes all the alloys in the ASTM specification. Increased the yield strength of 7050-T7452. Deleted 5083-O SB-493 Revised to adopt ASTM B493-08. Editorial changes. SB-548 to adopt ASTM B-548-03 Minor editorial changes.

SB-653 Revised to adopt ASTM B653-06. Minor editorial changes. SB-928 Revised to adopt ASTM B-09. Deleted maximum yield strengths for 5083-H321 And 5456-H321. Added longitudinal properties for 5086-H321, 5456-H321. Revised thicknesses in Table 2 for 5383-H116 and H321. Allows testing in the long transverse direction.

SECTION II PART C

Various changes were made to SFA-5.01, 5.5, 5.6, 5.14, 5.22 and 5.29. A major change was that all metal cored classifications from SFA-5.9 have been transferred to SFA-5.22.

SECTION II PART D Revisions to several tables and adoption of several code cases. Deletion of several notes that made incorrect references due to past addenda.



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SECTION IV




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SECTION IV, FORWARD

It became apparent that clarification was needed for establishing governing Code Edition and Addenda for new construction and field assembly as well as for parts. Also, as a result of initiating this item, CSP-9 (see background information file) was revised to establish a policy for establishing the effective edition and addenda to be used to construct an item that is to be stamped with an ASME certification mark (e.g. Code Symbol Stamp). The actions proposed by this item are needed to implement that Policy.

Revise the Foreword, HG-100, Manufacturer’s Data Reports, and insert new mandatory appendix 8 to address the requirements for governing Code edition.

SECTION IV, PART HG

HG-400.2(e) The relief valve capacity exception found in paragraph. HG-400.2(e) for cast iron boilers should also apply to cast aluminum boilers. The revision to this paragraph will accomplish the intent. For cast iron or cast aluminum boilers constructed to the requirements of Part HC or Part HA, the minimum valve capacity shall be determined by the maximum output method.

HG-530.2

Some confusion was occurring with respect to proper name that should be shown on rating plate as an Assembler with a Certificate to Install Nameplate only is not sufficiently covered in the Code currently. With the addition of the nameplate installation certificate the Section IV Committee intended that the certificate holder was the one to assume responsibility for the boiler and they would have their name on the nameplate. Revise HG-530.2(c) to add new sub-paragraphs 1 and 2. New sub-paragraph HG-530.2(c)(1)(a) and 530.2(c)(1)(b) will define a Shop Assembler as the certificate holder that ultimately applies the ASME nameplate to the case iron or cast aluminum boiler. Sub-paragraph HG-530.2(c)(2) will be sub-divided into HG-530.2(c)(2)(a) through HG-530.2(c)(2)(d) and will incorporate the current requirements notes in HG-530.2(c)(1) through HG-530.2(c)(4).



21

SECTION IV, PART HG (Continued)

HG-530.2 (Continued) HG-530.2 Marking Requirements for Cast Iron or Cast Aluminum Boilers (c) When the boiler size and number sections have been decided, the completed boiler shall be marked with the Code Symbol shown in Fig. HG-530.1 and with the following data: 1) the Shop Assemblers name preceded by the words “Certified by” 2) maximum allowable working pressure 3) safety or safety relief valve capacity (minimum), as determined according to HG- 400.1(d) and Hg-400.2(e) (4) maximum water temperature (d) The Shop Assembler that is in possession of a Code Symbol Stamp and valid Certificate of Authorization shall be one of the following: (1) the shop that assembles sections into boilers, performs the hydrostatic test and installs the nameplate. (2) the shop that installs the nameplate on a boiler, previously assembled and hydrotested by another authorized Certificate Holder. (3) the shop that only installs the nameplate on a boiler jacket.

HG-502.3 At present, Section IV requires that the yield or tensile strength of a part burst tested be determined from a specimen cut from the part tested from a location where the stress during the test did not exceed the yield strength. On some cast parts, it is very difficult to locate a section where the part was not over stressed. Allowing the yield or tensile strength to be determined from separately cast bars that were poured from the same lot as the tested part will insure that the yield or tensile strength thus determined will not be based on a part previously over stressed. (c) For cast pressure parts, cast test bars may be used in lieu of the specimens referenced above. If used, cast test bars shall be produced, machined and tested in accordance with the requirements of Section II. Cast test bars shall be poured from the same ladle of material, under the same sand conditions, that the cast pressure part subjected to bursting is poured from and shall receive the same thermal treatment as the cast pressure part subjected to bursting.



22

SECTION IV, PART HG (Continued)

HG-502.3 (Continued) (d) The design pressure P, psi, for pressure parts, tested under this paragraph shall be computed by the following formula:

P = PB/5 X S/(Sa or Sm) where B PB = bursting test pressure S = specified minimum tensile strength Sa = average actual tensile strength of test specimens or cast test bars, Sm = maximum tensile strength of range of specification.

HG-710.5

HG-710.5 includes mandatory requirements to place identification tags on boiler supply and return valves. The issue with this mandatory language is that some individuals believe it is essential to include the exact wording on the tags, only because the Code says “shall”. Although there is good reason to have such identification and the advice it provides, the piping, valves, and tags are outside the scope of Section IV and therefore not mandatory.

Delete HG-710.5 since it is outside the scope of Section IV.

SECTION IV, PART HF HF-203 & HLW-203

Revised HF-203.2, HF-203.3 and HLW-203 to define ASME standard and Manufacturer’s standard pressure parts and add footnotes 3, 4 and 5 to HF-203 and footnotes 1,2 and 3 to HLW-203.



23

SECTION IV, PART HF (Continued) HF-204.3(e) & Table HF-300.1 Note 12 The reference found under HF-204.3(e) to note (16) should be replaced by a reference to Note (12) and the note itself should be revised to reflect that the conversion of 210 F is 99 C and not 98 C. Revised to say “(e) For austenitic stainless steel materials only, the water temperature shall not exceed 210°F (99°C). [See Table HF-300.1, Note (12).] Table HF-300.1 Under notes: (12) The water temperature shall not exceed 210°F (99°C). Table HF-300.1 It is desired to use SF-568M, property class 10.9 material in Section IV construction because that is the material from which metric fasteners are fabricated. Section II, Part A, SF-568M, par X1.1.5 indicates that SF-568M, Class 10.9 mechanical properties are purchased as SF-568M material and then recertified to SA-354, grade BD in accordance with Section IV, paragraph HF-206. Adding this material to table HF-300.1 will eliminate the time and expense of recertifing the SA-354 material. Since this material has been heat treated, the maximum allowable stress should be the lesser of 20% of tensile or 25% of yield. Revise tensile strength value for SF-568M SF-568M 10.9 Carbon Steel 150(1040) (10) 30.2 (208)



24

SECTION IV, PART HF (Continued) HF-301.1 A request was received from a manufacturer for the use of: EN 10025-2 – 2004 Edition – Grade S235JR (1.0038) EN 10088-2 – 2005 Edition – Grade X6CrNiMoTi17-12-2 (1.4571) EN 10217-1 – 2002 Edition – Grade P235TR2 (1.0255) with Section IV, limited to hot water applications

Addition of three new materials: SA/EN 10025-2 – 2004 Edition – Grade S235JR SA/EN 10088-2 – 2005 Edition – Grade X6CrNiMoTi17-12-2 SA/EN 10217-1 – 2002 Edition – Grade P235TR2 HF-301.1

Section IV is requesting Section II provide two separate tables, HF-300.1 and HF-300.1M, which will replace existing Table HF-300.1. The new Tables HF-300.1 and HF-300.1M are to contain temperature dependant stress values from room temperature to 500F (275C) for all materials currently listed in Table HF-300.1. Section IV and MPC have prepared both tables and are requesting Section II approval. The allowable stress value for SA-193 B7 bolting material at room temperature has been corrected. Table HF-300.1 has been replaced with two new tables HF-300.1 and HF-300.1M for US Customary and SI units respectively. The new table lists temperature dependent allowable stress values ranging form room temperature to 500 F (275 C). Correct the allowable stress value of SA-193 B7 bolting material at room temperature to YS/4 (75/4 = 18.8 ksi.).



25

SECTION IV, PART HA HA-302(d) A manufacturer requested new paragraph (d) be added to the end of HA-302 in order to allow the use of Sand Cast Aluminum Alloy EN AC-AlSif10Mg(a), F Temper having core removal ports closed by welded patches. The use of welded patches, having the same thickness of the adjacent material is proven as good engineering practice for this material and in the foundry industry. Core of correct size and shape is necessary to obtain a sound casting and therefore the suitable opening is required to remove the core. EN AC-AlSi10Mg(a), F temper alloy is recognized by the BS EN 1706/1998 as A-class (Excellent) ability to be welded. Revise HA-302 by adding new requirements under new paragraph (d) as follows: (d) Core holes in aluminum alloy castings may be plugged by welded patches made of the same material as the castings under the following conditions: (1) The welded plugs may only be used to plug holes required for the manufacturing process, such as core sand removal. They shall not be used for repair. (2) Proof testing to establish design pressure is required and shall comply with HA-402. (3) The shop assembler shall hydrostatically test each casting per HA-406 HA-406.1 In the manufacture of several boiler products using a series of cast aluminum boilers of a monoblock design that require no additional assembly (there are no boiler sections or manifolds involved in these designs). These castings will have been tested at 2-1/2 times MAWP by the foundry. Therefore, it is felt that it is not necessary to test them again at a lower pressure.



26

SECTION IV, PART HA (Continued) HA-406.1 (Continued)

(a) Revised to say “ Hot water heating boilers marked for maximum allowable working pressures

not over 30 psi (200 kPa) shall have each individual section or boiler part subjected to a hydrostatic test of not less than 60 psi (400 kPa) at the shop where made.

(c) The assembled boiler shall be subjected to a hydrostatic test pressure not less than 1 1/2 times the maximum allowable working pressure. (1) Cast aluminum monoblock boilers, boilers with a single section design that do not require

additional machining or assembly, do not require a second hydrostatic test at 1 1/2 times the maximum allowable working pressure.

(a) Any additional machining, short blasting or grinding after the hydrostatic test will require testing at 1 1/2 times the maximum allowable working pressure.

SECTION IV, PART HC HC-211

Under the current requirements of HC-211 test bars are required per melting period and the melting periods are limited to 8 hours. A foundry running a 10 hour shift is defined as having 2 melting periods and is required to pour 4 test bars per shift. This change maintains the minimum requirements, while removing penalties for foundries running shifts longer than 8 hours. NUMBER OF TESTS For purposes of this requirement, a melting period shall not exceed 24 hr. For tensile or traverse tests for each class of iron, one of more test bars shall be cast during each 4 hour period during the melt. No less than two test bars are to be cast from each melt, one during the first half of the melting period, and the other during the last half of the melting period. For chemical composition test samples, see HC-202. During each eight hour period, one chemical composition test and either one tensile or one transverse test shall be made on each melt (or each mixture if two or more mixtures of a different class of iron are made in a given melt) for each controlling section (see HC-206) in the castings made from each melt (or mixture).2



27

SECTION IV (Continued) TABLE 2-100

Update of table 2-100 will required 2008 edition of PTC-25 to be used for capacity certification testing. The PTC-25 updates include revised terminology, and minor updates to the standard. These changes will not materially affect certification testing requirements.

Update PTC-25 to 2008 edition



28

SECTION VIII, DIVISION 1




29

SECTION VIII, Div. 1 GENERAL

This summary of changes to Section VIII, Div. 1 of the ASME Code is not all inclusive and contains the changes we consider most important to our clients. Please remember to use the Code for actual requirements.

The 2011 Addenda to the Code become mandatory January 1, 2012. This addenda was printed on white paper and was printed in its entirety. Also please note that Footnotes have been changed to Endnotes and these endnotes are part of the Standard. ASME will no longer issue addenda. The next edition of the Code will be issued in 2013 and then issued every 2 years thereafter. Code Case Supplements will be published two times a year. Interpretations will be posted on the ASME website at http://cstools.asme.org/Interpretations.cfm in January and July of each year. What ASME calls a “Special Notice” may be posted on the website prior to the 2013 Edition to provide approved revisions to Code requirements. These revisions may be used upon issuance but become mandatory 6 months after issuance. “Errata” to the Code will also be posted on the ASME website to provide corrections. Errata are typographical or grammatical errors. These “Special Notices” and “Errata” can be found at http://www.asme.org/kb/standards/publications/bpvc-resources or http://cstools.asme.org/BPVErrataAndSpecialNotice.cfm



30

SECTION VIII, Div. 1 GENERAL (Continued) ASME is phasing out the multiple stamps and moving to a single mark. The major driver behind this change is that in order to fully protect the marks, ASME would need to register marks in the more than 100 countries in which stamped equipment used. The use of a single mark will allow ASME to register one mark in these countries thus making it easier to afford greater protection of a single mark rather than lesser protection for multiple marks.

The proposed schedule for implementing the move to a single ASME certification mark will be publication in the 2011 Addenda to the Code. There will be a transition period during which a Manufacturer or Constructor would be able to use either one of the applicable 25 current marks or the single mark. Use of the single mark would then become mandatory on January 1, 2013. There will be a policy statement in the front of the Code books describing this transition period and an implementing Code Case in both the BPV and Nuclear Code Case Books. Each stamp holder must go to ASME’s CA connect (http://www.caconnect.asme.org), establish an account if they have not already and request the new Mark. ASME will not be sending individual notifications of this to the stamp holders – It is up to the stamp holders to independently request this new mark An example of how the stamping may appear In the case of Section VIII, Division 1, the Designator that will appear directly under the Certification Mark as “U”

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signator”

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D,



32

SECTION VIII, Div. 1 GENERAL (Continued)

ASME is phasing out the multiple stamps and moving to a single mark. The major driver behind this change is that in order to fully protect the marks, ASME would need to register marks in the more than 100 countries in which stamped equipment is used. The use of a single mark will allow ASME to register one mark in these countries thus making it easier to afford greater protection of a single mark rather than lesser protection of multiple marks. The proposed schedule for implementing the move to a single ASME certification mark will be publication in the 2011 Addenda to the Code. There will be a transition period during which a Manufacturer or Constructor would be able to use either one of the applicable 25 current marks or the single mark. Use of the single mark would then become mandatory on January 1, 2013. There will be a policy statement in the front of the Code books describing this transition period and an implementing Code Case in both the BPV and Nuclear Code Case Books. Revise all Section VIII Div. 1 paragraphs to refer to the ASME Certification Mark instead of the Code Stamp.

FORWARD

The ASME has determined that the Forewords are not part of the Code. Accordingly, a proposal to move those portions of the present Forewords of the BPV Codes which are perceived to contain mandatory and enforceable language into an appropriate location in their respective Book Sections has been made. One of those portions is in the 5th paragraph of the Foreword that addresses tolerances. This action takes the exact words that currently reside in the Foreword on tolerances and place them in the new paragraph. While coverage regarding tolerances is addressed (for example, UG-80 and UG-81), it was felt that a dedicated paragraph was needed in view of the broader range of applicability in which that these paragraphs may apply.



33

SECTION VIII, DIV. 1 INTRODUCTION

New Paragraph U-5 Tolerances Added New Paragraph, “The Code does not fully address tolerances. When dimensions, sizes, or other parameters are not specified with tolerances, the values of these parameters are considered nominal and allowable tolerances or local variances may be considered acceptable when based on engineering judgment and standard practices as determined by the designer.” Table U-3 Many of the references in the current code books show obsolete references. The table has been revised to update the year of acceptable edition dates. Referenced documents in U-3 have been updated. Dimensional standards are now shown as “Latest Edition” Documents with P/T ratings and specific technical requirements show year of accepted edition. Several new references have been added. The latest edition of ASME standards may be found at www.asme.org. For the ASTM standards go to www.astm.org. . Examples of Table U-3

TABLE U-3 YEAR OF ACCEPTABLE EDITION OF REFERENCED STANDARDS IN THIS DIVISION Title Number Year Seat Tightness of Pressure Vessel Relief Values API Std. 527 1991 (R2007)(1) Unified Inch Screw Threads (UN and UNR Thread Form) ASME B1.1 Latest Edition

Pipe Threads, General Purpose (Inch) ANSI/ASME B1.20.1 Latest Edition

Cast Iron Pipe Flanges and Flanged Fittings, Classes 25,125, and 250 ASME B16.1 2005

Pipe Flanges and Flanged Fittings ASME B16.5 2009(2) Factory-Made Wrought Buttwelding Fittings ASME B16.9 Latest Edition Forged Fittings, Socket-Welding and Threaded ASME B16.11 Latest Edition Cast Bronze Threaded Fittings, Classes 125 and 250 ASME B16.15 Latest Edition



34

SECTION VIII, DIV. 1 PART UG

UG-11 The revision is a restructuring of UG-11 to include rules for non-standard pressure parts; rules for pressure parts, welded or non-welded, built to an ASME product standard such as B16.5; and rules for pressure parts, welded or non-welded, built to a standard other than ASME such as a Manufacturer’s standard. The documentation that a Manufacturer must have in order to “satisfy himself that the part complies with the rules of the [Code] and the design is suitable for the design specification.” has been increased It also provides rules for allowing a Manufacturer to subcontract welding to another entity for welding pressure parts that is to their own standard, and will also incorporate ASME B16.1 as an acceptable product standard for fabrication of vessels to Part UCI. This paragraph has undergone significant changes. A lot of the information that was in UG-11(a) is now in UG-11(c). The manufacturer of the completed vessel is still responsible to assure the parts supplied comply with this Division. The documentation that Manufacturer must obtain in order to satisfy himself that the part complies with the rules of this division and the design is suitable for the design specification has been increased. UG-11(e) is a new paragraph allowing the use of a subcontractor to perform welding even though the subcontractor is not a Code stamp holder. The paragraph details all the requirements that must be met by the vessel and parts manufacturer.



35

SECTION VIII, DIV. 1 PART UG (Continued)

UG-19 This item revises the marking and data report rules for combination units. It removes the requirement that “parts of chambers” be marked or identified on the Data Report, since it is sufficient that this requirement only apply to chambers, Added the requirement that common elements of chambers not included in the scope of this Division be marked and described on the Data Report, and reorganized the MDR and marking requirements for combination units to reside in their own paragraphs. The paragraphs related to the marking and MDR requirements for combination units were reorganized as well. UG-116(l) is now UG-116(k). This revises the marking and data report rules to: 1) remove the requirement that “parts of chambers” be marked or identified on the Data Report, since it is sufficient that this requirement only apply to chambers, 2) add the requirement that common elements of chambers not included in the scope of this Division be marked and described on the Data Report, and 3) reorganize the MDR and marking requirements for combination units to reside in their own paragraphs. Clarified the marking and data report requirements for combination units and common elements adjacent to at least one Code chamber. Reorganized the paragraphs relating to the marking and MDR requirements for combination units. Renumbered UG-116(l) to UG-116(k)



36


UG-20(a) • Cautionary note added to UG-20 “Design Temperature” • References to WRCB 470 for suggested details for vessels in elevated temperature

service • Non mandatory requirement Experience has shown that some pressure vessels operating at temperature in the creep range of the materials have experienced cracking after some period of operation. Such cracking has most often occurred at locations that exhibit stress concentrations and/or local thermal gradients, and weldments. Typical locations where cracking has occurred are as follows:

Nozzle reinforcing pad attachment welds Nozzle-to-shell junctions Support attachment points Other fillet welded attachments

Added a reference to WRC-Bulletin 470 “Recommended Design Details for Elevated Temperature Service.” This is a cautionary note to help in preventing cracking in the creep range. UG-32(b) This paragraph was deleted because it is not used anymore. The paragraphs will not be renumbered due to the large number of references to these other paragraphs. Fig UG-34 sketch (g) This sketch was revised to correct 1.2 ts to 1.25 ts to match paragraph UG-34(d)



37


UG-39 • New Mandatory Appendix 41 for Electric Immersion Heater Support Plates • Uses same methods as given in Part UHX for perforated plate • Results in a more accurate, less conservative design than required by UG-39

reinforcement rules The current rules for reinforcement of multiple openings in flat covers used to support electric element heaters result in greater thicknesses than rules consistent with those in Part UHX. Flanged electric immersion heaters consist of tubular electric heating elements typically mounted in multiple penetrations in ASME B16-5 blind flanges. Under the current Code rules and interpretations, a flanged electric heater element support plate is not considered a tubesheet but rather an unstayed flat head or cover. Therefore, the rules in Part UHX are not applicable and the cover thickness requirements are calculated using the formulas and rules in UG-34 and UG-39. For multiple penetrations, the rules in UG-34 (c)(2) require the value under the square root sign in formula UG-34 (c)(2), Formula (2) to be doubled for both operating and bolting calculations. This causes the thickness to be unnecessarily greater than that computed using the Part UHX methodology. The Appendix would establish mandatory rules for the design of electric immersion heater element support plates that are specific to these products using the rules established in Part UHX, specifically UHX-12 for “U” tube heat exchangers. Typically blind flanges are used for the electric immersion heater element support plate. However it is not uncommon for a manufacturer to be forced to use the next higher class of blind flange in order to achieve the minimum thickness requirements for both operating and bolting as calculated by UG-34 and UG-39. Moreover the required thicknesses as determined by these rules are typically 20% to 30% thicket than similar calculations for heat exchanger tubesheets subjected to the same pressure and temperature. The proposed Appendix would establish mandatory rules for the design of electric immersion heater element support plates that are specific to these products using the rules established in Part UHX, specifically UHX-12 for “U” tube heat exchangers. Revised to add a reference to Appendix 41 for electric immersion heaters and their design.



38

SECTION VIII, DIV. 1 PART UG (Continued) UG-40 In UG-40(e) (3) the reference to UG-44(i) was revised to UG-44(j). UG-40(b) (2) The words in this paragraph to make the definition of Rn consistent with UG-37(a) UG-44 Added B-16.1 due to the restructuring of UG-11. UG-90(c)(1)(n) Inspection and Tests Revised paragraph (n) to add “When the Inspector has certified by signing the Manufacturer’s Data Report, this indicates acceptance by the Inspector. This acceptance does not imply assumption by the Inspector of any of the responsibilities of the Manufacturer.”



39


UG-93(a)(1) Added new paragraphs (a)(1)(a) and (a)(1)(b). These paragraphs define what must be contained in documentation received by the vessel manufacturer for plate material. These documents shall be either an MTR or a C of C and shall be prepared by the originator of the data. The Inspector shall determine that this documentation represents the material and meets the requirements of the material specification. (a) Revised to read “Except as otherwise provided in UG-4(b), UG-10, UG-11, or UG-15,

requirements……

(1) For plates,2 the vessel Manufacturer shall ensure all requirements of the material specification, and all special requirements of this Division, that are to be fulfilled by the materials manufacturer have been complied with. The Manufacturer shall accomplish this by obtaining certificates of compliance of Material Test Reports. The Inspector shall determine if these documents represent the material and meets the requirements of the material specification.

(a)(1) For plates,2 the vessel……

(a) These documents shall include results of all required tests and examinations, evidence of compliance with the material specification and additional requirements, as applicable. When the specification permits certain specific requirements to be completed later, those incomplete items shall be notes on the material documentation.

(b) The vessel Manufacturer shall receive a copy of the test report as prepared by the originator of the data and maintain as part of his construction records.



40


UG-99(b) Revised this paragraph to consider static head in hydrostatic test pressure calculations. This means the gauge does not have to be at the top of the vessel as long as static head is considered in the pressure calculations. Paragraph (b) now says “Except as otherwise permitted in (a) above and 27-4, vessels … … All loadings that may exist during this test shall be give consideration. The hydrostatic test pressure reading shall be adjusted to account for any static head conditions between the chamber being tested and the pressure gage.” UG-99(f) Vessels design and constructed for service under high vacuum (HV) or ultra high vacuum (UHV) conditions are routinely not ASME Code stamped and certified. Vacuum vessels are specifically excluded from the scope of Section VIII, Division 1 per the provisions of U-1(c)(2)(h). As a result, HV and UHV vessels are often constructed in compliance with AWS D17.1, or other similar standards which impose loose technical requirements, making it difficult to invoke a standard of consistent design and construction quality for these vessels. As a result, there are broad inconsistencies in the way manufacturers design and construct vacuum service vessels, often compromising their performance. It would be helpful for users to be able to specify construction and certification under Section VIII, Division 1 rules to impose more detailed requirements for greater consistency in engineering and construction quality. However, HV and UHV vessels have unique design and service needs which often make full compliance with Section VIII, Division 1 impossible, precluding their certification and stamping under the provisions of U-1(c)(2). To eliminate the existing barriers to “U” Code Symbol Stamping of HV and UHV vessels, a set of alternative rules is being proposed as revisions to existing Code requirements for pressure testing of vessels intended only for vacuum service.



41


This paragraph was revised to allow vacuum testing as an alternative for vacuum service vessels, and to impose leak testing requirements for performing vacuum testing. UG-102(a)

The definition of, “connected to the vessel,” is subject to interpretation. The text of the paragraph is revised to clarify the intent of the connection. Also, this provides guidance for static head considerations if the gage is not at the top of the chamber.

(a) An indicating gage shall be connected directly to the vessel or with a pressure line that does not include intermediate valves. If the indicating gage is not readily visible to the operator controlling the pressure applied, an additional indicating gage shall be provided where it will be visible to the operator throughout the duration of the test. For large vessels, it is recommended that a recording gage be used in addition to indicating gages.

UG-116(j)

Revised to clarify the marking and data report requirements for combination units and common elements adjacent to at least on Code chamber. Also reorganized the paragraphs relating to the marking and MDR requirements for combination units. Renumbered UG-116(l) to UG-116(k).



42

SECTION VIII, DIV. 1 PART UG (Continued) UG-117(f)

Revised to add the duties of the ASME designee on Joint Reviews. It now states “The ASME Designee performs reviews, surveys, audits, and examination of organizations or persons holding or applying for accreditation or certification in accordance with an ASME code or standard.”

The purpose of the review is to evaluate the applicant’s Quality Control System and its implementation. The ASME Designee performs reviews, surveys, audits, and examinations of organizations or persons holding or applying for accreditation or certification in accordance with the ASME code or standard The applicant shall demonstrate sufficient administrative and fabrication functions of the system to show that he has the knowledge and ability to produce the Code items covered by his Quality Control System. Fabrication.

UG-120 The revision to this paragraph clarified the Data Report requirements for combination units and common elements adjacent to at least one code chamber. The paragraphs related to the marking and MDR requirements for combination units were reorganized as well. .

UG-125(a)

Revised to clarify that pressure relief devices for unfired steam boilers are required to meet the requirements of UG0125 through UG-136.



43

SECTION VIII, DIV. 1 PART UW UW-3

Revised to reinforce the fact that not all welded joints are assigned a category per UW-3,. For example, UW-3 now references Fig. 5-1(a) which is a corner joint and has no category. . UW-11(a)(2) Changed “…vessels…” to “…the shell and heads of vessels…”. Added information for unfired steam boilers that do not exceed 50 psi but still exceed the requirements of UW-11(a)(2). Moved the requirements for nozzles and communicating chambers that exceed 1 1/8” in thickness or NPS 10 from UW-11(a)(2) to UW-11(a)(4). UW-11(a)(5) Changed “…vessels…” to “…the shell and heads of vessels…”. UW-12(f) Changed the reference to UW-27(a) to UW-27(a)(2) UW-27(a) Revised to add a new paragraph UW-27(a)(3) UW-16(f)(3)(a)(4) Added the words “as required by (3) above” to this paragraph to provide requirements for tf such that it will accommodate the required fillet weld size.



44

SECTION VIII, DIV. 1 PART UW (Continued)

UW-21 Revised to allow the use of ASME B-16.5 socket and slip on flanges for all vessel parts. Fig, UW-21(1) Corrected the location of the toe of the weld with respect to the dimension lines. The figure now shows that the toe of the weld is not flush with the flange face. UW-42 Editorially revised to more clearly indicate that weld metal build-up could include building up the thickness of a head that was reduced in thickness during them forming process. UW-50 Added the words “before the pneumatic test is performed.” UW-51 Added a new paragraph 4 which states “As an alternative to radiographic examination requirements above, all welds in material 1/2” (13mm) and greater in thickness may be examined using the ultrasonic (UT) method per the requirements of paragraph 7.5.5 of Section VIII, Division 2.”



45

SECTION VIII, DIV. 1 PART UB UB-30(d)

UW-26(d) was revised (BC03-212) )to permit subcontracted welders to be used only at the address on the Certificate of Authorization or the final installations sire. This is a significant departure from past practice that permit the use of subcontracted welding at locations other than the Certificate Holders address or final installation site. When this revision to UW-26(d) was considered, UB-30 was not included. This proposal will correct the oversight and make both provisions consistent with each other.

Rules were added to tighten the requirements for subcontracted brazers similar to those

required for welders. SECTION VIII, DIV. 1 PART UCS UCS-5(c) Added the statement “…(except as provided in Part UF in this Division)…”. UCS-6 Added UCS-6(c) which states “Except for local heating, such cutting and welding, heating

of SA-841 above 12000F (6490C) during fabrication is prohibited.” UCS-66(a) and (f) Editorial changes only, no technical changes were made.



46

SECTION VIII, DIV. 1 PART UCS (Continued) UCS-67 Editorial changes only, no technical changes were made. UCS-85(f) Added “This exemption does not apply to SA-841. TABLE UCS-23 Added SA-841, Grade A, Class 1 and Grade B, Class 2 to this table. Also added SA/EN

10028-2P235GH and P265GH

FIG UCS-66 Revised Note (2)(a) and (4) to add SA/EN 10028-2P235GH and P265GH. Also added

SA/AS 1548 Grades PT430NR, PT-460NR, and PT490NR in Note (2)(a). TABLE UCS-66 Added a statement at the end of Note (2)(b) stating “This preheat need not be applied to

SA-841 Grades A and B, provided that the carbon content and carbon equivalent (CE) for the plate material, by heat analysis, do not exceed 0.14% and 0.40% respectively where…” It then gives the formula for CE.



47

SECTION VIII, DIV. 1 PART UHA TABLE UHA-23 Added SA-451 J92800(CPF3M) and J92900 (CPF8M). Also added SA-213 TP347LN,

UNS S34751 and SA-312 TP 347LN UNS 34751. TABLE UHA-44 Added SA-213 TP347LN, UNS S34751 and SA-312 TP 347LN UNS 34751. Added alloy

304L to this table. SECTION VIII, DIV. 1 PART UCI UCI-35 Added a reference to UG-44(a) to this paragraph. SECTION VIII, DIV. 1 PART UHX UHX-4(d) Design rules for distribution and vapor belts were added to this paragraph. UHX-8 Revised to provide new rules used to determine the tubesheet effective bolt load acting on

the perforated region of the tubesheet for the different configuration and loading cases. SECTION VIII, DIV. 1 PART UIG TABLE UIG-6-1



48

Adjustments made to the minimum tensile strengths for Block Materials. SECTION VIII, DIV. 1 MANDATORY APPENDICES APPENDIX 1-10(b) Corrected At to read AT by errata

APPENDIX 2 Revised the definition of go Also, the reference to UG-44(a) to UG-44(b) in the third line. APPENDIX 3 Revised various definitions for consistency with Division 2. 3-2 DEFINITIONS OF TERMS

Material Manufacturer: the organization responsible for the production of products meeting the requirements of the material specification, and accepting the responsibility for any statements or data in any required certificate of compliance or Material Test Report representing the material. Material Test Report: a document in which are recorded the results of tests, examinations, repairs, or treatments required by the material specification to be reported. Including those of any supplementary requirements or other requirements stated in the order for the material. This document may be combined with a certificate of compliance as a single document. When preparing a Material Test Report, a material manufacturer may transcribe data produced by other organizations provided he accepts responsibility for the accuracy and authenticity of the data.

APPENDIX 6

Added Paragraph (d) which says “Documentation showing that the required examinations

have been performed and that the results are acceptable shall be made available to the Inspector.“



49

SECTION VIII, DIV. 1 MANDATORY APPENDICES (continued) APPENDIX 8 Added Paragraph (d) which says “Documentation showing that the required examinations

have been performed and that the results are acceptable shall be made available to the Inspector.”

APPENDIX 10

Added line (5) to paragraph 10-13(b) to state “Pressure parts documentation and certifications ”The rest of the items were renumbered. Also, Line Item (b)(7) was revised to say “Welders Qualification Records for each welder who welded on the vessel”

The intent of 10-13(b)(6) is to be able to identify which welder made each weld on a pressure vessel; see UW-37(f). The text of the code should be clarified to show this. UW-37(f), Welder and Welding Operator Identification, is clear that the intent of the code is that identifying stamps are to be applied to vessel welds – or a record is to be kept as to which welder welded each joint. Paragraph 10-13(b)(6) revised to be clear that records should be kept in accordance with UW-37(f).

APPENDIX 23 Removed the maximum limit of 1500F for copper and copper alloy tubes.

APPENDIX 24

24-1(a) was revised to add considerations of loads other than pressure. In 24-1(f), retainer

requirements were modified. And in 24-1(d) added an alternative to equation 5.



50

SECTION VIII, DIV. 1 MANDATORY APPENDICES (continued) APPENDIX 26 Revised Paragraphs 24-4, -10, -11 and -12 for consistency with Division 2. Also deleted

26-16. Figure 26-13 was revised to clarify the requirement for circumferential welds attaching the bellows element to the shell or weld ends.

APPENDIX 35 Revised 35-4(a) to clarify that the Manufacturer is responsible for submitting the

inspection and quality control procedure and the Quality Control System to the AIA of record, the legal jurisdiction and the ASME designee for review and acceptance.

Form UD-1 Revised 1) Table 2A the heading of column 8 is changed to Marked Burst or Set Pressure 2) Table 2A the heading of column 9 “disk” is deleted 3) Certificate of Shop Compliance “or pin” was added after “rupture disk” 4) On Table W-3.2, Note 9 “, as applicable was added after “device” 5) On Table W-3.2, Note 20 “or set” was added after “burst” 6) On Table W-3.2, Note 20 “or pin” was added after “disk” 7) On Table W-3.2, Note 21 deleted “disk” after “specified” 8) On Table W-3.2, Note 21 “or pin” was added after “disk” 9) On Table W-3.2, Note 22 “or pin devise as applicable” was added after “disk” 10) On Table W-3.2, Note 24 “as applicable” was added after “identifier”



51

SECTION VIII, DIV. 1 MANDATORY APPENDICES (continued) APPENDIX 35 (Continued)

Form UD-1 and Supplementary Instruction Table W-3.2 were revised per 01-059 and the revision does not completely address documentation of Code Symbol stamping of rupture disk and rupture pin devices. 1) On Form UD-1, Table 2A the heading of column 8 is changed to Marked Burst or Set

Pressure 2) On Form UD-1, Table 2A the heading of column 9 “disk” is deleted 3) On Form UD-1, Certificate of Shop Compliance “or pin” was added after “rupture

disk” 4) On Table W-3.2, Note 9 “, as applicable was added after “device” 5) On Table W-3.2, Note 20 “or set” was added after “burst” 6) On Table W-3.2, Note 20 “or pin” was added after “disk” 7) On Table W-3.2, Note 21 deleted “disk” after “specified” 8) On Table W-3.2, Note 21 “or pin” was added after “disk” 9) On Table W-3.2, Note 22 “or pin devise as applicable” was added after “disk” 10) On Table W-3.2, Note 24 “as applicable” was added after “identifier”



52





53

SECTION VIII DIVISION 2

Annex 2.C Section VIII, Div. 2 Code was rewritten in 2007 Edition the words that permit Manufacturers with multiple locations, each with its own Certificate of Authorization, to transfer pressure vessel parts from one location to another without Partial Data Reports were inadvertently deleted. The deletion of these words creates a hardship for those manufacturers that fabricate parts in one location and transport them to another location for assembly into the final vessel.

As a historical note the revision to Section VIII, Div. 2 in the 2002 Addenda (BC97-401) AM-105, AS-310 permitted the transfer of welded parts between one Manufacturer’s Multiple Plant Locations Add Paragraph 2.C.2.3 “Manufacturers with multiple locations, each with its own Certificate of Authorization, may transfer pressure vessel parts from one of its locations to another without Partial Data Reports, provided the Quality Control System describes the method of identification, transfer, and receipt of the parts.”

Paragraph 5.5.1 Added new.7 for weld seam peaking when a fatigue analysis is required Paragraph 6.1.6.3.a) and c) Revised to add consideration of peaking when the weld joint is operating at a temperature where the allowable stress is in the time dependent regime The current words of 6.1.6.3.a are essentially the same as AF-136 from the A06 version of Div 2. However, since VIII-2 now goes into the creep regime, creep should be addressed in addition to fatigue. There have been documented failures of Category A welds failing in creep due to the additional bending stress as a result of peaking. Paragraph 6.1.6.3 is



54

modified to include vessels that operate where time dependent properties govern the allowable stress.

SECTION VIII DIVISION 2 For welded joints exceeding 2 inches in thickness, Table AF-142.1 of the 2004 Edition of Section VIII Div 2 (incl. 2006 Addenda) listed the maximum allowable offset in welds as a function of the thickness, with a maximum of 3/8 inch in longitudinal joints, or 3/4 inch in the case of circumferential joints. When the 2007 Edition of Div 2 was published, the limit was shown as a maximum of the two criteria. This has the effect of increasing the maximum allowable offsets (see comparison on page 3 of the proposal file). To be consistent with the “old” Div 2, the “Max” expression in Table 6.4 should be replaced with “Min”. For information, a table showing the values from Table AF-142.1 of the old Div 2, the current Table 6.4, and the revised Table 6.4 after the proposed changes are made. Table 6.4 – 0-1707

Table 6.4 – Maximum Allowable Offset in Welded Joints Section Thickness Category A Joints Category B, C, D Joints 13 mm (1/2 in) < t t/4 t/4 13 mm (1/2 in) < t ≤ 19 mm (3/4 in) 3 mm (1/8 in) t/4

19 mm (3/4 in) < t ≤ 38 mm (1-1/2 in) 3 mm (1/8 in) 5 mm (3/16 in)

38 mm (1-1/2 in) < t ≤ 50 mm (2 in) 3 mm (1/8 in) t/8

t > 50 mm (2 in) max min└t 1/6, 10 mm (3/8 in)┘

max min└t/8, 19 mm (3/4 in)┘

Notes: t is the nominal thickness of the thinner section at the weld joint.



55





56

SECTION VIII, DIVISION 3 The provisions on KM-211.2(c) have been used to circumvent the requirements of KM-211.1(a) and (b) for very thick forgings. KM-211.2(c) currently permits Charpy V-notch test specimens for very thick forgings (e.g. a flat head >20 inches thick) to be taken immediately adjacent to the surface. While the impact properties at the surface may be acceptable, the properties at the 1/4 t location may be very poor. This action eliminates the exemption for very thick forgings and clarifies that for contour shaped forgings, the intent is to determine the equivalent of the 1/4 t location as accurately as practicable and to take the test specimens at that location. Para KM-211.c (c) For very thick or complex forgings that are contour shaped or machined to essentially the finished product configuration prior to heat treatment, a drawing prepared by the Manufacturer shall show the surfaces of the finished product which will be subjected to high tensile stresses in service. The distance between this surface and the nearest quenched surface is defined to be the thickness t. Test specimens shall be removed from stock provided on the product. The coupons shall be removed so that the specimens shall have their longitudinal axes at a distance t below the nearest heat-treated surface. The midlength of the specimen shall be a minimum of twice this distance, 2t, from any second heat-treated surface. In any case, the longitudinal axes of the specimens shall not be nearer than 3/4 in. (19 mm) to any heat-treated surface. This is known as the t by 2t test location. For forgings that are contour shaped or machined to essentially the finished product configuration prior to heat treatment, find the interior location that has the greatest distance to the nearest quenched surface. Designate this distance t/2. Test specimens shall be taken no closer to any quenched surface than 1/2 of this distance (1/4 t location). The mid length of the specimen shall be a minimum of t/2 from any second quenched surface.



57

SECTION IX




58

SECTION IX QW-161.1 Revised to allow multiple specimen to be taken across the weld so that the

entire weld and heat affected zones are tested. Changed “weldheat” to “weld and heat”. QW-196.2 Revised to delete the reference to QW-462.11 which no longer exists. QW-264 Updated the variables for Laser Beam Welding (LBW) This also required

revisions to several paragraphs in QW-400. QW-300.3 Revised the paragraph to say, “…each participating organization has a PQR(s)

to support the WPS or has an SWPS adopted in accordance with Article 5…”. QW-409.2 Revised to say “A change from globular, spray or pulsed spray transfer

welding to short circuiting transfer welding or vice versa.” QW-409.26 Revised the last sentence to say “the increase shall be determined by the

methods of QW-409.1 QW-409.29 Revised to address the determination of heat input. QW-420 Revised to clarify the requirement for unlisted base metals. “Only base metals

listed in table QW/QB-422 with a minimum tensile strength values may be used for procedure qualification except as modified by the following paragraph.” The “following paragraph” says, “If an unlisted base metal has the same UNS number designation as a base metal listed in table QW/QB-422, that base metal is also assigned that P-number or P-number plus Group Number. If the unlisted base metal is used to procedure qualification, the minimum tensile values of the listed base metal shall apply for the tension test specimens.” Also added “Material produced under an ASTM specification shall have the same P-Number or P-Number plus Group-Number and minimum specified tensile value as that of the corresponding ASME specification listed in table QW?QB-422. (e.g., SA-240 Type 340 is assigned P-No 8, Group 1; therefore, A240 Type 304 is P-No 8, Group 1.)”



59

SECTION IX, (Continued) TABLE QW/QB-422 Revised to ass seamless and welded pipe and tube to A 789 and

790, plate, sheet and strip to A240, bar to A479 and fitting to A815. This was also added to Appendix D. Added SA/IS 2062 E250 A, E250 B and E 250 C to this table and to Appendix D. Also added Duplex Stainless Steel Alloy S32750 Bar, A479 to this table and Appendix D. Added SA/EN 10028-2 Grades P235GH and P265GH.

QW-432 Adopted AWS A5.14/A5.14M: 2009 “Specification for Nickel and Nickel-Alloy

Bare Welding Electrodes and Rods as SFA-5.14/SFA-5.14M.. Added three new specifications which are all F-43 and changed the % Ti in ERNiCrMo-21.

QW-462 Added tables to address the shear strength of spot and projection welds in

titanium. QW-466.1 Revised to address the shear strength of spot and projection welds in titanium. QW/QB-492 Revised the definition of “pulsed spray welding.” Also revised the

definition of machine welding. QW-510 Changed “radiographic” to “volumetric.” QW-520 Revised the definition of “pulsed spray welding.” Appendix J Added this new mandatory appendix to provide guidelines for submitting

requests for P-Numbers to base metals not listed in QW/QB-422.

Education

2011+addenda+asme+code+synopsis+by+one cis+insurance+co