bs en iso 9692-4

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BRITISH STANDARD BS EN ISO 9692-4:2003

Welding and allied processes Recommendations for joint preparation

Part 4: Clad steels

The European Standard EN ISO 9692-4:2003 has the status of a British Standard

ICS 25.160.40

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BS EN ISO 9692-4:2003

This British Standard was published under the authority of the Standards Policy and Strategy Committee on 19 August 2003

BSI 19 August 2003

ISBN 0 580 42474 X

National forewordThis British Standard is the official English language version of EN ISO 9692-4:2003. It is identical with ISO 9692-4:2003.

The UK participation in its preparation was entrusted to Technical Committee WEE/1, Definitions and symbols for welding, which has the responsibility to:

A list of organizations represented on this committee can be obtained on request to its secretary.

Cross-referencesThe British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled International Standards Correspondence Index, or by using the Search facility of the BSI Electronic Catalogue or of British Standards Online.

This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.

Compliance with a British Standard does not of itself confer immunity from legal obligations.

aid enquirers to understand the text;

present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed;

monitor related international and European developments and promulgate them in the UK.

Summary of pages

This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 13 and a back cover.

The BSI copyright notice displayed in this document indicates when the document was last issued.

Amendments issued since publication

Amd. No. Date Comments

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EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORM

EN ISO 9692-4

August 2003

ICS 25.160.40

English version

Welding and allied processes - Recommendations for jointpreparation - Part 4: Clad steels (ISO 9692-4:2003)

Soudage et techniques connexes - Recommandations pourla prparation de joints - Partie 4: Aciers plaqus (ISO

9692-4:2003)Schweien und verwandte Prozesse - Empfehlungen zurSchweinahtvorbereitung - Teil 4: Plattierte Sthle (ISO

9692-4:2003)

This European Standard was approved by CEN on 20 February 2003.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Management Centre or to any CEN member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.

CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and UnitedKingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATIONC O M I T E U R O P E N D E N O R M A LI S A T I O NEUR OP IS C HES KOM ITEE FR NOR M UNG

Management Centre: rue de Stassart, 36 B-1050 Brussels

2003 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.

Ref. No. EN ISO 9692-4:2003 E

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EN ISO 9692-4:2003 (E)

2

Contents

Foreword......................................................................................................................................................................31 Scope ..............................................................................................................................................................42 Normative references ....................................................................................................................................43 Materials..........................................................................................................................................................44 Types of joint preparation.............................................................................................................................4Table 1 Joint preparation for clad steels welded from both sides....................................................................5Table 2 Joint preparation for clad steels welded from both sides with cladding removal.............................7Table 3 Joint preparation for clad steels welded from one side .......................................................................9Table 4 Joint preparation for clad steels incorporating a backing, insert or cover strip...............................11Bibliography ..............................................................................................................................................................13

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EN ISO 9692-4:2003 (E)

3

Foreword

This document (EN ISO 9692-4:2003) has been prepared by Technical Committee CEN/TC 121, "Welding", thesecretariat of which is held by DS.

This European Standard shall be given the status of a national standard, either by publication of an identical text orby endorsement, at the latest by February 2004, and conflicting national standards shall be withdrawn at the latestby February 2004.

EN ISO 9692 Welding and allied processes Recommendations for joint preparation consists of the followingParts:

Part 1: Manual metal-arc welding, gas-shielded metal-arc welding, gas welding, TIG welding and beamwelding of steels.

Part 2: Submerged arc welding of steels.

Part 3: Metal inert gas welding and tungsten inert gas welding of aluminium and its alloys.

Part 4: Clad steels

According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal,Slovakia, Spain, Sweden, Switzerland and the United Kingdom.

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EN ISO 9692-4:2003 (E)

4

1 Scope

This Part of this European Standard gives recommendations for types of joint preparation for clad steels.

2 Normative references

This European Standard incorporates by dated or undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places in the test and the publications are listed hereafter. Fordated references, subsequent amendments to or revision of any of these publications apply to this EuropeanStandard only when incorporated in it by amendment or revision. For undated references the latest edition of thepublication referred to applies (including amendments).EN 1011-5, Welding Recommendations for welding of metallic materials Part 5: Welding of clad steels

3 Materials

Joint preparations recommended in this part of EN ISO 9692 are suitable for all types of weldable clad steels.

4 Types of joint preparationThe recommended types of joint preparation and dimensions are specified in Tables 1 to 4.Details concerning welding recommendations for clad steels are given in EN 1011-5.

Figures showing the completed joint are given in Table 4 for clarity.In certain cases, where the welding process may produce a brittle phase e.g. clad steels with cladding of titanium,zirconium and their alloys, a deviation from the weld preparations shown may be necessary.

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EN ISO 9692-4:2003 (E)

5

Table 1 Joint preparation for clad steels welded from both sidesDimensions in millimetres

Ref.No.

Parentmetal

thickness

t1

Jointpreparation

Cross section Angle

bb

Gapb

RadiusR

Depth of rootface

c

Depth ofpreparation

h

Claddingremoval

e

Remarks

1.1 t1 18 Single

V-butt weld

With broadroot face

5 <

4 < R < 8

b

2 Backgrinding ormachiningfrom the cladside.

1.2 Single

U-butt weld

Licensed Copy: Tom Magee, Howden Power, 06 March 2004, Uncontrolled Copy, (c) BSI

EN ISO 9692-4:2003 (E)

6

Table 1 Joint preparation for clad steels welded from both sides (concluded)

Ref.No.

Parentmetal

thickness

t1

Jointpreparation

Cross section Angle

b

Gapb

RadiusR

Depth ofroot face

c

Depth ofpreparation

h

Claddingremoval

e

Remarks

1.3 t1 > 18 Double

V-butt weld

With broadroot face

50

5

4

b

2 6 h = 3

1.4 Single

U-butt weldwith V-root

Key1 Parent metal2 Claddingt2 Cladding thickness


EN ISO 9692-4:2003 (E)

7

Table 2 Joint preparation for clad steels welded from both sides with cladding removalDimensions in millimetres

Ref.No.

Parentmetal

thickness

t1

Jointpreparation

Cross section Angle

,

Gapb

RadiusR

Depth of rootface

c

Depth ofpreparation

h

Claddingremoval

e

Remarks

2.1 t1 18 Single

V-butt weld

50

5

3 b 5

4 R 8

c 2 e 4 Back grindingor machiningisrecommended

Adjacent cladsurfacesshould beprotectedagainstgrindingparticles.

2.2 Single

U-butt weld

Wheresubmergedarc welding isused, thecladdingremoval, e,should be atleast 8 mm.


EN ISO 9692-4:2003 (E)

8

Table 2 Joint preparation for clad steels welded from both sides with cladding removal (concluded)

Ref.No.

Parentmetal

thickness

t1

Jointpreparation

Cross section Angle

Gapb

RadiusR

Depth of rootface

c

Depth ofpreparation

h

Claddingremoval

e

Remarks

2.3 t1 > 18 Double

V-butt weld

50 < < 70 3 b 5 c 2 h t

13 1

e 4



EN ISO 9692-4:2003 (E)

9

Table 3 Joint preparation for clad steels welded from one sideDimensions in millimetres

Ref.No.

Parentmetal

thicknesst1

Jointpreparation

Cross section Angle

b 1, b 2

Gap

b

Depth ofroot face

c

Depth ofpreparation

h

Claddingremoval

e

Remarks

3.1 t1 < 8 Single

V-butt weld 20 b 1 45

20 b 2 45

2 b 4

e 3

3.2 Single

V-butt weldwith V-root

Table 3 Joint preparation for clad steels welded from one side (concluded)


EN ISO 9692-4:2003 (E)

10

Ref.No.

Parentmetal

thicknesst1, t2

Jointpreparation

Cross section Angle

b 1, b 2

Gap

b

Depth ofroot face

c

Depth ofpreparation

h

Claddingremoval

e

Remarks

3.3 t1 18

1 t2 4

Pipe weld 30 b 1 40

20 b 2 45

1 b 4

c 2

e Suitable forpipewelding



EN ISO 9692-4:2003 (E)

11

Table 4 Joint preparation for clad steels incorporating a backing, insert or cover stripDimensions in millimetres

Ref.No.

Parentmetal

thickness

t1

Jointpreparation

Cross section Angle

aa

Gapb

RadiusR

Depth ofroot face

c

Depth ofpreparation

h

Claddingremoval

e

Remarks

4.1 t1 18 Single

V-butt weld

50 a 70

b 3 c 2 In order tocomplete thejoint, an insertof dimensionsd (b + 10)t2 isplaced into thejointpreparation onthe clad side ofthe joint, aftercladdingremoval.

t3 t2


EN ISO 9692-4:2003 (E)

12

Table 4 Joint preparation for clad steels incorporating a backing, insert or cover strip (concluded)Dimensions in millimetres

Ref.No.

Parentmetal

thickness

t1

Jointpreparation

Cross section Angle

aa

Gapb

RadiusR

Depth ofroot face

c

Depth ofpreparation

h

Claddingremoval

e

Remarks

4.2 t1 18 Single

V-butt weld

50 a 70

b 3

R > 10

c 2 The claddingis removedover a widthd, where

d b + 15.

Key1 Parent metal2 Cladding3 Cover strip4 Insertt2 Cladding thickness


EN ISO 9692-4:2003 (E)

13

Bibliography

List of ISO corresponding standards to European standards given in clause 2

European standardgiven in clause 2

ISO Technical Reportcorresponding

Title of ISO Technical Report

EN 1011-5 ISO TR 17671-5 Welding Recommendation for welding of metallic materials Part 5: Welding of clad steels

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BS EN ISO 9692-4:2003

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WMDate: 06 March 2004edtDisclaimer: This is an uncontrolled copy. Ensure use of the most current version of this document by searching British Standards Online at bsonline.techindex.co.ukedtMessage: A single copy of this British Standard is licensed toedtBS: British StandardWMName: Tom Magee

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