Welding Procedure Preparation

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Welding Procedure Guide
An easy to follow guide covering the preparation of welding procedure data sheets

© Copyright 2008 CWB Group - Industry Services

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© Copyright CWB Group - Industry Services Revised September 2008 All rights reserved. CWB Group 1-800-844-6790 www.cwbgroup.org

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TABLE OF CONTENTS
1.0 Introduction 2

2.0 Welding Engineering Standards

3

3.0WeldingProcedureSpecification(WPS)

3

4.0WeldingProcedureDataSheet(WPDS) 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8

4 6 7 8 11 13 14 16 20

BLOCK1(GeneralInformation) BLOCK2(Processinformation) BLOCK3(Jointinformation) BLOCK4(Technicaldata) BLOCK5(Jointpreparation)

BLOCK6(BaseandFillermaterial) BLOCK7(Weldingdetails) BLOCK8(Finalremarks)

5.0 Submission Of Welding Procedures

23

6.0 Review And Approval Of Welding Procedures

24

7.0 Sample Welding Procedure Data Sheets

26

© Copyright CWB Group - Industry Services

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© Copyright CWB Group - Industry Services

WELDINGPROCEDUREPREPARATION
®

1.0

Introduction
Thisguidehasbeenpreparedtoassistweldingpersonnelwiththepreparationofweldingprocedures requiredaspartoftheircompanycertificationtoCSAStandardsW47.1,W47.2andW186.

Thefollowingthreedocumentswillbedescribed:

(a)WeldingEngineeringStandards(Note:OnlyrequiredforW47.2) (b)WeldingProcedureSpecifications c)WeldingProcedureDataSheets

Therewillbeabriefdescriptionofthefirsttwodocuments;however,thisguidewillfocusonthepreparation of welding procedure data sheets. Each item on the welding procedure data sheet will be described and guidance will be provided to complete each section.

© Copyright CWB Group - Industry Services

Page 1

WELDINGPROCEDUREPREPARATION
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2.0

Welding Engineering Standards
Welding engineering standards cover the design of welded joints encountered by the fabricator and prepared primarily for the fabricator’s engineering and drafting personnel. Theweldingengineeringstandardstypicallyinclude: (a)Illustratedprofilesofeachtypicaljointintendedforuse,showing: (i)Thetypeofjoint(eg,butt,lap,tee,corner,edge); (ii)Thetypeofweld; (iii)Thegeometryofthepreparationandfit-up; (iv)Thestandardweldingsymbol; (v)Therangeofthickness;and

(b)Minimumpermissiblesizesoffilletandpartialpenetrationgroovewelds. Welding symbols shall be as shown in AWS Standard A2.4. Sample welding engineering standards are available on our website www.cwbgroup.org

3.0

WeldingProcedureSpecification(WPS)

AllcompaniesapplyingorcertifiedtoCSAStandardsW47.1,W47.2orW186arerequiredtoprepareand submitweldingprocedurespecificationstotheCWBforacceptance.

Aweldingprocedurespecification(WPS)setsbroadguidelinesfortheshopandfieldweldingpracticeof the fabricator for each anticipated combination of essential variables. Welding parameters and ranges are specifiedandusedtopreparetheassociatedweldingproceduredatasheets.

Page 2

© Copyright CWB Group - Industry Services

WELDINGPROCEDUREPREPARATION
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Thecompanyshallhaveweldingprocedurespecificationsforeachweldingprocessinuse,outliningthe general welding procedure to be followed in the construction of weldments built in accordance with the governingdesignormanufacturingstandard,orboth.Weldingprocedurespecificationssubmittedfor acceptanceshouldcoverasaminimumtheitemsspecifiedinAppendixDofCSAStandardW47.1or AppendixAofCSAStandardW47.2,asapplicable.Eachweldingprocedurespecificationshallinclude applicableessentialvariables.AllweldingprocedurespecificationsshallbesubmittedtotheBureaufor acceptance...
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