Welding Procedure Specification-1

7/30/2019 Welding Procedure Specification-1

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HEAVY FAB INDUSTRIESCOIMBATORE 641 006.

WELDING PROCEDURE SPECIFICATION (WPS)Sheet 01 of 02

Welding Procedure Specification No : HFI/001 Supporting P.Q.R. No : HFI/101

Revision No : 00 Date :Welding Process : SMAW Type : Manual

(Automatic, Manual, Machine or Semi Auto)

JOINTS (QW 402)

Joint Design AS PER PRODUCTION DRAWING.

Backing (YES) For double side and backing strip joints : (NO) For single side welds

Backing Material (Type) : Weld Metal / Base Metal

Metal Yes Non fusing Metal : No

Retainer No

BASE METALS (QW 403)

P. No. : 1 Group No. : 1&2 to P. No. : 1 Group No. : 1&2

OR

Specification Type and Grade : SA 516 GR 70 to

To Specification Type and Grade : SA 516 GR 70

OR

Chemical Analysis and Mechanical properties : ___________

To Chemical Analysis and Mechanical Properties. : ___________

THICKNESS RANGE

Base Metal Groove : 4.8mm to 200mm Fillet : All

Pipe Dia. Range Groove : All Dia Fillet : All

Others : Root spacing for backing strip joints : 8 10mm

For others 2 1mm

FILLER METALS (QW 404)

Specification No. (SFA) : 5.1

A.W.S. No (Class) : E-7018

F. No. : 4

A. No. : 1Size of Filler Metals : 2.5, 3.15, 4.0, 5.0 & 6.3mm

Deposited weld Metal

Thickness Range : Groove : 200mm Max Max bead thickness : 5mm

Fillet : All

Electrode Flux ( Class) : Basic

Flux Trade Name : Not applicableConsumable Insert : Not applicable


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Sheet 02 of 02

POSITIONS (QW 405) POST WELD HEAT TREATMENT (QW 407)

Position of Groove : All Temperature Range : 600 C - 620 C

Welding Progression : Uphill for Vertical Time Range : 1 Hour/inch

Position of Fillet : All as per UCS .56

PRE-HEAT (QW 406) GAS (QW 408)

Pre-heat Temperature Min. : 10 C Upto 30mm Percent composition : NA

Pre-heat Maintenance : 31-100mm - 100 C Gas (es) Mixture Flow Rate

Above 100mm - 150 C Shielding : -------------------------------------------------------

Inter-pass Temp. Max. : 350 C max. Trailing : --------------------------------------------------------Backing : --------------------------------------------------------

ELECTRICAL CHARACTERTISTICS (QW 409)

Current AC or DC : DC Polarity : DCEP

Amperes (Range) 60 300 Volts(Range) : 22 26

Tungston Electrode Size and Type : Not applicable

Mode of Metal Transfer for GMSW : Not applicable

Electrode Wire Feed Speed Range : Not applicable

TECHNIQUE (QW 410)

String or Weave Bead : String & Weave Orifice or Gas cup Size : Not applicable

Initial & Inter pass cleaning : Brushing/ Grinding / Chipping

Method of Back Gouging : By grinding Oscillation : Not applicable

Contact tube to work distance : Not applicable Multiple/ Single Pass : Multiple Pass

Multiple/ Single Electrode : Single Travel Speed (Range) : Not applicable

Peening : Not applicable Electrode Spacing : Not applicableOthers : Clean 25mm on either side of weld to remove oil, rust, grease, etc.

Weld

Layer(s)

Process Filler Metal Current Volts Wire

Feed

(IPM)

Travel

Speed

Range

mm/min

Others

Class Dia. Type of

Polarity

Ampere

(Range)

Root Run SMAW E 7018 2.5 DC EP 60 90 22 26 N.A. N.A. Weave Max.3D

For Other

Layers

SMAW E 7018 3.15 DC EP 90 140 22 26 N.A. N.A. Weave Max.3D.

SMAW E 7018 4.0 DC EP 140 180 22 26 N.A. N.A. Weave Max.3D


SMAW E 7018 6.3 DC EP 240 300 22 26 N. A N.A Weave Max.3D

Prepared by : R.PURUSHOTHAMAN Checked by : R.PURUSHOTHAMAN Approved by :

Date : 19.04.05 Date : 19.04.05 Date :


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4/8

Sheet 02 of 02


Position of Groove : All Temperature Range : Not Applicable

Welding Progression : Uphill for Vertical Time Range : Not Applicable

Position of Fillet : All


Pre-heat Temperature Min. : 10 C Upto 30mm Percent composition : NA

Pre-heat Maintenance : 31-38mm - 100 C Gas (es) Mixture Flow Rate

Shielding : -------------------------------------------------------

Inter-pass Temp. Max. : 350 C max. Trailing : --------------------------------------------------------

Backing : --------------------------------------------------------





Mode of Metal Transfer for GMSW : Not applicableElectrode Wire Feed Speed Range : Not applicable

TECHNIQUE (QW 410)

String or Weave Bead : String & Weave Orifice or Gas cup Size : Not applicable




Multiple/ Single Electrode : Single Travel Speed (Range) : Not applicablePeening : Not applicable Electrode Spacing : Not applicable

Others : Clean 25mm on either side of weld to remove oil, rust, grease, etc.

Weld

Layer(s)

Process Filler Metal Current Volts Wire

Feed

(IPM)

Travel

Speed

Range

mm/min

Others

Class Dia. Type of

Polarity

Ampere

(Range)


For Other

Layers




SMAW E 7018 6.3 DC EP 240 300 22 26 N. A N.A Weave Max.3D


Date : 19.04.05 Date : 19.04.05 Date :


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JOINTS (QW 402)





Retainer No


P. No. : 8 Group No. : 1 to P. No. : 1 Group No. : 1&2

OR

Specification Type and Grade : SA 240 TP 304 to


OR



THICKNESS RANGE




For others 2 1mm



A.W.S. No (Class) : E-309-15

F. No. : 5

A. No. : 8Size of Filler Metals : 2.5 5mm



Fillet : All




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7/8






JOINTS (QW 402)





Retainer No


P. No. : 8 Group No. : 1 to P. No. : 8 Group No. : 1

OR

Specification Type and Grade : SA 240 TP 304L to


OR



THICKNESS RANGE




For others 2 1mm



A.W.S. No (Class) : E-308L 15

F. No. : 5

A. No. : 8Size of Filler Metals : 2.5 5mm



Fillet : All




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Sheet 02 of 02


Position of Groove : All Temperature Range : Not applicable

Welding Progression : Uphill for Vertical Time Range : Not applicable

Position of Fillet : All


Pre-heat Temperature Min. : 10 C Percent composition : NA

Pre-heat Maintenance : ----- Gas (es) Mixture Flow Rate

Shielding : -------------------------------------------------------

Inter-pass Temp. Max. : 200 C max. Trailing : --------------------------------------------------------Backing : --------------------------------------------------------





Mode of Metal Transfer for GMSW : Not applicable

Electrode Wire Feed Speed Range : Not applicable

TECHNIQUE (QW 410)

String or Weave Bead : String Orifice or Gas cup Size : Not applicable




Multiple/ Single Electrode : Single Travel Speed (Range) : Not applicable

Peening : Not applicable Electrode Spacing : Not applicableOthers : Clean 25mm on either side of weld to remove oil, rust, grease, etc.

Weld

Layer(s)

Proces

s

Filler Metal Current Volts Wire

Feed

(IPM)

Travel

Speed

Range

mm/min

Others

Class Dia. Type of

Polarity

Ampere

(Range)


For Other

Layers





Date : 19.04.05 Date : 19.04.05 Date :

Documents

Welding Procedure Specification-1