Pr-w-1102.21-4012-002 Rev 0 Welding Procedure Specification for Steel Structure (Wps)-Sw(1)

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PTT PUBLIC COMPANY LIMITED RATCHABURI WORLD COGENERATIONCOMPANY LIMITED

GAS PIPELINE AND GAS METERING AND REGULATING STATION PROJECT

DOCUMENT TITLE: WELDING PROCEDURE SPECIFICATION FOR STEEL STRUCTURE (WPS)

DOCUMENT NO.: PR-W-1102.21-4012-002 REVISION: 0

REVIEW STAMP COMMENTS

E. Work may proceed.

F. Work may proceed. Submit “for Construction”

Documents.

G. Revise and Resubmit. Work may proceedSubject to incorporation of changes indicated.

H. Revise and Resubmit. Work may not proceed.

I. Review not required. Work may proceed.

Acceptance in any of these categories shall be in no wayrelieve the Contractor/Supplier of its responsibility for thedue and proper performance of the Work in accordancewith the Contract/Purchase Order.

Name:

Sign:

Date:

0 02/04/13 Issued for Construction WS JR NP

A 05/02/13 Issued for Approval WS JR NP

Rev. Date DescriptionPrepared

ByChecked

By Approved

By

CONTRACTOR:

SIAM RAJATHANEE JOINT VENTURE

CONSULTANT:

UNITY ENGINEERING AND CONSULTANCY

SERVICES CO.,LTD.



WELDING PROCEDURESPECIFICATION FOR STEEL

STRUCTURE (WPS)

GAS PIPELINE AND GAS METERING ANDREGULATING STATION PROJECT

Document No. PR-W-1102.21-4012-002

Rev. 0 of 10

PR-W-1102.21-4012-002 Rev.0(WELDING PROCEDURE SPECIFICATION FOR STEEL STRUCTURE (WPS))

DOCUMENT CHANGE RECORD

Rev Date Prepared/

Revised

By

ReviewedBy

ApprovedBy

Description

A 05-02-2013 WS JR NP Issued for Approval

0 02/04/13 WS JR NP Issued for Construction




STRUCTURE (WPS)


Document No. PR-W-1102.21-4012-002

Rev. 0 of 10


TABLE OF CONTENTS

ARTICLE PAGE

1.0 SCOPE ...................................................................................................................................... 4

2.0 REFERENCE ............................................................................................................................. 4

3.0 DEFINITIONS ............................................................................................................................ 4

4.0 VENDOR DOCUMENT .............................................................................................................. 8




STRUCTURE (WPS)


Document No. PR-W-1102.21-4012-002

Rev. 0 of 10


1.0 SCOPEThis Procedure is for the Welding of Gas Pipeline and Gas Metering and Regulating Station Project.The Material of Pipe used is under standard of ASTM A36, ASTM A53 for Structural Steel. Theapplied Welding Procedure are SMAW for Steel Structure

2.0 REFERENCE

ASTM A36 Standard Specification for Carbon Structural Steel

ASTM A35 Specification for Pipe, Steel, Black and Hot-Dipped Zinc-Coated Welding and Seamless Pipe

AWS D1.1 Structural Welding Code

SP-S-1102.21-010-001 Specification for Civil/Structural Furnishing of StructuralSteel, Miscellaneous Steel & Joint

SP-S-1102.21-010-002 Specification for Civil/Structural Erection of Structural Steel,Miscellaneous Steel & Joints

3.0 DEFINITIONS

WPS Welding Procedure Specification

PQR Procedure Qualification Record




STRUCTURE (WPS)


Document No. PR-W-1102.21-4012-002

Rev. 0 of 10


WELDING PROCEDURE SPECIFICATION FOR STEEL STRUCTURE (WPS)

Welding Process (es) _______________ SMAW______________

Supporting PQR No. (s)_______________-__________________

Joint Design ______________________ Butt W eld____________

Application Code (s) ______________ AWS D1.1_____________

Specification (s)________SP-W- MOC08/2012-504-002________

Identification__________________________________________

Revision_____A___Date___xx/xx/xxx______By______________

Authorized by___________________Date____xx/xx/xxxx______

Type – Manual ( / ) Semi – Automatic ( )

Machine ( ) Automatic ( )

JOINT DESIGN USED

Type_______________Square Groove Weld_________________

Single ( / ) Double Weld ( )

Backing Yes ( ) No ( / )

Backing Material______________ _N/A_____________________

Boot Opening____T1/2__Root Face Dimension_____N/A_______

Groove Angle____N/A__Radius (J-U) __________N/A_________

Back Gouging: Yes ( / ) No ( )

Method____________________Grinding____________________

POSITION

Position of groove________________ALL___________________

Vertical Progression : Up ( / ) Down ( )

ELECTRICAL CHARACTERISTIC

Transfer Mode (GMAW) Short – Circuiting ( )

Grobular ( ) Spray ( )

Current : AC ( / ) DCEP ( ) DCEN ( ) PULSED ( )

Other

BASE METALS

Material Spec.______________ASTM______________________

Type or Grade___________A36 or Equivalent __ _______

Thickness Groove ____T≤ 6.4 mm___ Fillet______YES_________

Diameter (Pipe) _________________N/A ___ ________________

TECHIQUE

Stringer or Weave Bead______________Both________________

Multi – pass or Single Pass (per side)________Both___________

Number of electrodes ________________Single______________

Electrode Spacing Longitudinal ___________N/A__________

Lateral ______ ____N/A_________

Angle_ __________N/A_________

NDT

VISUAL :_________________100%_______________________

DPI :____________________100%_______________________

FILLTER METALS

AWS Specification ________ ________AWS 5.1______________

AWS Classification ___ E7016 and E7018 for Field Welding_____

Type and Brand Name __E7016 (KOBE LB-52 or EQUIVALENT)_

_ E7018 (KOBE LB-52 or EQUIVALENT)_

SHIELDING

Flux_____________N/A________Gas________N/A___________

Composition______N/A_______

Electrode – Flux (Class) Flow Rate________N/A_______

Gas Cup Size_____N/A_______

Contract Tube to Work Distance____________N/A____________

Peening__________________________N/A_________________

Interpass Cleaning: _________ __Grinding – Power Brush______

PREHEAT

Preheat Temp., Min._______________N/A__________________

Interpass Temp.,Min.______________N/A___________________

POSTWELD HEAT TREATMENT

Temp.____________________N/A________________________

Temp.____________________N/A________________________

WELDING PROCEDURE

Passor

WeldLayer

(s)

Process

Filler Metals Current

VoltsTravelSpeed

(cm/min)

Joint Details

Class Diam.Type &Polarity

Amps or WireFeed Speed

ROOT SMAW E7016 3.2 mm AC 80 – 140 22 - 28 5 – 10

H.P SMAW E7016 3.2 mm AC 80 – 140 22 – 28 5 – 10

FILLER SMAW E7016 4.0 mm AC 110 – 190 22 – 28 5 – 10

CAP SMAW E7016 4.0 mm AC 110 - 190 22 - 28 5 – 10




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Document No. PR-W-1102.21-4012-002

Rev. 0 of 10





Joint Design _____________Complete Joint Penetration _______


Specification (s)_________ SP-W- MOC08/2012-504-002_______

Identification__________________________________________





JOINT DESIGN USED

Type_______________Square Groove Weld_________________




Boot Opening_0 – 3 MM__Root Face Dimension___0 – 3 MM_____

Groove Angle ___60 ̊__Radius (J-U) __________N/A_________

Back Gouging: Yes ( / ) No ( )

Method____________________Grinding____________________

POSITION

Position of groove________________1G – 3G___________________






Other

BASE METALS


Type or Grade_________ _ A36 or Equivalent ______________

Thickness Groove __6.4 < T ≤ 19 mm _Fillet_____N/A_________

Diameter (Pipe) _______________________ ________________

TECHIQUE





Lateral ______ ____N/A_________

Angle_ __________N/A_________

NDT

VISUAL :_________________100%_______________________

DPI :____________________100%_______________________

FILLTER METALS

AWS Specification ________ ________AWS 5.1______________



_ E7018 (KOBE LB-52 or EQUIVALENT)_

SHIELDING

Flux_____________N/A________Gas________N/A___________



Gas Cup Size_____N/A_______


Peening__________________________N/A_________________


PREHEAT




Temp.____________________N/A________________________

Temp.____________________N/A________________________

WELDING PROCEDURE

Passor

WeldLayer

(s)

Process


VoltsTravelSpeed

(cm/min)

Joint Details



ROOT SMAW E7016 3.2 mm AC 80 – 140 22 - 28 5 – 10

H.P SMAW E7016 3.2 mm AC 80 – 140 22 – 28 5 – 10

FILLER SMAW E7016 4.0 mm AC 110 – 190 22 – 28 5 – 10

CAP SMAW E7016 4.0 mm AC 110 - 190 22 - 28 5 – 10




STRUCTURE (WPS)


Document No. PR-W-1102.21-4012-002

Rev. 0 of 10


}




Joint Design ______________________ Fillet Weld___________


Specification (s)_________ SP-W- MOC08/2012-504-002_______

Identification__________________________________________





JOINT DESIGN USED

Type_______________Fillet Weld_______ __________




Boot Opening____0__Root Face Dimension_____ T ≤ 20 MM ____

Groove Angle____N/A__Radius (J-U) __________N/A_________

Back Gouging: Yes ( ) No ( / )

Method____________________Grinding____________________

POSITION

Position of groove________________ALL___________________






Other

BASE METALS


Type or Grade__________ A36 or Equivalent __ ____________

Thickness Groove ____N/A ___Fillet______N/A _________

Diameter (Pipe) _______________________ ________________

TECHIQUE





Lateral ______ ____N/A_________

Angle_ __________N/A_________

NDT

VISUAL :_________________100%_______________________

DPI :____________________100%_______________________

FILLTER METALS

AWS Specification ________ ________AWS 5.1________________



_ E7018 (KOBE LB-52-18 or EQUIVALENT)_

SHIELDING

Flux_____________N/A________Gas________N/A___________



N/A Gas Cup Size_____N/A_______


Peening__________________________N/A_________________


PREHEAT




Temp.____________________N/A________________________

Temp.____________________N/A________________________

WELDING PROCEDURE

Passor

WeldLayer

(s)

Process


VoltsTravelSpeed

(cm/min)

Joint Details



1 SMAW E7016 3.2 mm AC 90 – 140 20 – 28 5 – 20

SMAW E7016 4.0 mm AC 130 – 190 20 – 28 5 – 20Base Metal Thickness Minimum Size OF Fillet Weld

SMAW E7016 4.0 mm AC 150 - 240 20 - 28 5 – 20

T < 6.4 3 mm.(Single-passweld must be

used)6.4 < T < 12.7 5 mm.

12.7 < T < 20.0 6 mm




STRUCTURE (WPS)


Document No. PR-W-1102.21-4012-002

Rev. 0 of 10


4.0 VENDOR DOCUMENT- KOBELCO LB – 52 E7016

- KOBELCO LB – 52 – 18 E7018




STRUCTURE (WPS)


Document No. PR-W-1102.21-4012-002

Rev. 0 of 10


Pr-w-1102.21-4012-002 Rev 0 Welding Procedure Specification for Steel Structure (Wps)-Sw(1)

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