Specification and qualification of welding procedures for metallic materials - Welding procedure test - Part 2: Arc welding of aluminium and its alloys (ISO 15614-2:2005)

This document specifies how a preliminary welding procedure specification is qualified by welding procedure tests.
This document is part of a series of standards, details of this series are given in EN ISO 15607:2003, Annex A.
This document defines the conditions for the execution of welding procedure tests and the range of qualification for welding procedures for all practical welding operations within the range of variables listed in Clause 8.
This document applies to the arc welding of wrought and cast aluminium and its alloys. In this document the term aluminium stands for aluminium and for aluminium alloys.
This document does not apply to finishing welding of aluminium castings which is dealt by prEN ISO 15614 4.
Arc welding of aluminium is covered by the following welding processes in accordance with EN ISO 4063:
- 131   : metal inert gas welding (MlG welding);
- 141   : tungsten inert gas welding (TlG welding);
- 15   : plasma arc welding.
NOTE   Specific service, material or manufacturing conditions may require more comprehensive testing than is specified by this document (see 7.1).
The principles of this document may be applied to other fusion welding processes.

Anforderung und Qualifizierung von Schweißverfahren für metallische Werkstoffe - Schweißverfahrensprüfung - Teil 2: Lichtbogenschweißen von Aluminium und seinen Legierungen (ISO 15614-2:2005)

Dieses Dokument legt fest, wie eine vorläufige Schweißanweisung durch Schweißverfahrensprüfungen qualifiziert wird.
Dieses Dokument ist Teil einer Normenreihe. Einzelheiten dieser Normenreihe sind in EN ISO 15607:2003, Anhang A, angegeben.
Dieses Dokument definiert die Bedingungen für die Durchführung der Schweißverfahrensprüfungen und den Geltungsbereich für Schweißverfahren für alle praktischen schweißtechnischen Tätigkeiten innerhalb des Geltungsbereichs nach Abschnitt 8.
Dieses Dokument wird angewendet für das Lichtbogenschweißen von Aluminium-Knet- und -Gusswerkstoffen und ihren Legierungen. In diesem Dokument wird der Begriff Aluminium für Aluminium und Aluminiumlegierungen verwendet.
Dieses Dokument wird nicht angewendet für das Fertigungsschweißen von Aluminium-Gusswerkstoffen, das in prEN ISO 15614-4 behandelt wird.
Lichtbogenschweißen von Aluminium umfasst die folgenden Schweißprozesse nach EN ISO 4063:
-   131:   Metall-Inertgasschweißen (MIG-Schweißen);
-   141:   Wolfram-Inertgasschweißen (WIG-Schweißen);
-   15:   Plasmaschweißen.
ANMERKUNG   Spezielle Betriebs-, Werkstoff- oder Herstellbedingungen können umfangreicheres Prüfen, als in diesem Dokument festgelegt, verlangen (siehe 7.1).
Die Grundsätze dieses Dokumentes dürfen bei anderen Schmelzschweißverfahren angewendet werden.

Descriptif et qualification d'un mode opératoire de soudage pour les matériaux métalliques - Epreuve de qualification d'un mode opératoire de soudage - Partie 2: Soudage a l'arc de l'aluminium et de ses alliages (ISO 15614-2:2005)

L'ISO 15614-2:2005 spécifie comment un descriptif de mode opératoire de soudage préliminaire est qualifié par une épreuve.
Elle s'applique au soudage à l'arc de l'aluminium corroyé et moulé et de ses alliages.
Elle ne s'applique pas à la réparation par soudage pour les travaux de finition des pièces moulées en aluminium qui est traitée par l'ISO 15614-4.

Popis in kvalifikacija varilnih postopkov za kovinske materiale - Preskus varilnega postopka - 2. del: Obločno varjenje aluminija in njegovih zlitin (ISO 15614-2:2005)

General Information

Status
Published
Publication Date
30-Jun-2005
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-Jul-2005
Due Date
01-Jul-2005
Completion Date
01-Jul-2005

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SLOVENSKI STANDARD
SIST EN ISO 15614-2:2005
01-julij-2005
1DGRPHãþD
SIST EN 288-4:1996
SIST EN 288-4:1996/A1:1999
SIST EN 288-4:1996/AC:1999

3RSLVLQNYDOLILNDFLMDYDULOQLKSRVWRSNRY]DNRYLQVNHPDWHULDOH3UHVNXVYDULOQHJD

SRVWRSNDGHO2EORþQRYDUMHQMHDOXPLQLMDLQQMHJRYLK]OLWLQ ,62

Specification and qualification of welding procedures for metallic materials - Welding

procedure test - Part 2: Arc welding of aluminium and its alloys (ISO 15614-2:2005)

Anforderung und Qualifizierung von Schweißverfahren für metallische Werkstoffe -
Schweißverfahrensprüfung - Teil 2: Lichtbogenschweißen von Aluminium und seinen
Legierungen (ISO 15614-2:2005)
Descriptif et qualification d'un mode opératoire de soudage pour les matériaux

métalliques - Epreuve de qualification d'un mode opératoire de soudage - Partie 2:

Soudage a l'arc de l'aluminium et de ses alliages (ISO 15614-2:2005)
Ta slovenski standard je istoveten z: EN ISO 15614-2:2005
ICS:
25.160.10 Varilni postopki in varjenje Welding processes
77.120.10 Aluminij in aluminijeve zlitine Aluminium and aluminium
alloys
SIST EN ISO 15614-2:2005 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 15614-2:2005
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SIST EN ISO 15614-2:2005
EUROPEAN STANDARD
EN ISO 15614-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2005
ICS 25.160.10 Supersedes EN 288-4:1992
English version
Specification and qualification of welding procedures for metallic
materials - Welding procedure test - Part 2: Arc welding of
aluminium and its alloys (ISO 15614-2:2005)

Descriptif et qualification d'un mode opératoire de soudage Anforderung und Anerkennung von Schweißverfahren für

pour les matériaux métalliques - Epreuve de qualification metallische Werkstoffe - Schweißverfahrensprüfung - Teil

d'un mode opératoire de soudage - Partie 2: Soudage à 2: Lichtbogenschweißen von Aluminium und seinen

l'arc de l'aluminium et de ses alliages (ISO 15614-2:2005) Legierungen (ISO 15614-2:2005)

This European Standard was approved by CEN on 27 May 2004.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European

Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national

standards may be obtained on application to the Central Secretariat or to any CEN member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation

under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official

versions.

CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,

Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,

Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels

© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 15614-2:2005: E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN ISO 15614-2:2005
EN ISO 15614-2:2005 (E)
Contents Page

Foreword..............................................................................................................................................................4

1 Scope ......................................................................................................................................................6

2 Normative references ............................................................................................................................6

3 Terms and definitions ...........................................................................................................................7

4 Preliminary welding procedure specification (pWPS) .......................................................................7

5 Welding procedure test.........................................................................................................................7

6 Test piece ...............................................................................................................................................8

6.1 General....................................................................................................................................................8

6.2 Shape and dimensions of test pieces .................................................................................................8

6.3 Welding of test pieces.........................................................................................................................12

7 Examination and testing .....................................................................................................................12

7.1 Extent of testing...................................................................................................................................12

7.2 Location of test specimens ................................................................................................................13

7.3 Non-destructive testing.......................................................................................................................17

7.4 Destructive tests..................................................................................................................................17

7.5 Acceptance levels................................................................................................................................20

7.6 Re-testing .............................................................................................................................................20

8 Range of qualification .........................................................................................................................21

8.1 General..................................................................................................................................................21

8.2 Related to the manufacturer ...............................................................................................................21

8.3 Related to the parent material ............................................................................................................21

8.4 Common to all welding procedures...................................................................................................24

8.5 Specific to processes..........................................................................................................................27

9 Welding procedure qualification record (WPQR) .............................................................................27

Annex A (informative) Welding Procedure Qualification Record form (WPQR) .......................................29

Annex ZA (informative) Relationship between this European Standard and the Essential

Requirements of EU Directive 97/23/EC and 87/404/EEC ................................................................32

Annex ZB (normative) Normative references to international publications with their relevant

European publications.........................................................................................................................33

Bibliography ......................................................................................................................................................35

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SIST EN ISO 15614-2:2005
EN ISO 15614-2:2005 (E)
Figures

Figure 1 — Test piece for a butt joint in plate with full penetration ......................................................................9

Figure 2 — Test piece for a butt joint in pipe with full penetration .....................................................................10

Figure 3 — Test piece for a T-joint.....................................................................................................................11

Figure 4 — Test piece for a branch connection .................................................................................................12

Figure 5 — Location of test specimens for a butt joint in plate ..........................................................................14

Figure 6 — Location of test specimens for a butt joint in pipe ...........................................................................15

Figure 7 — Location of test specimens for a T-joint...........................................................................................16

Figure 8 — Location of test specimens for a branch connection or a fillet weld on pipe ...................................16

Tables

Table 1 — Examination and testing of the test pieces .......................................................................................13

Table 2 — Efficiency for tensile strength of butt joints .......................................................................................18

Table 3 — Examples of maximum calculated former diameter for some elongations and thicknesses............20

Table 4 — Range of qualification for similar and dissimilar metal joints ............................................................22

Table 5 — Range of qualification for parent material thickness for plates and pipes ........................................23

Table 6 — Range of qualification for the throat thickness for plates and pipes.................................................24

Table 7 — Range of qualification for pipe and branch connection diameters....................................................24

Table 8 — Range of qualification for type of joint ..............................................................................................26

Table ZA.1 — Correspondence between this European Standard and Directive 97/23/EC..............................32

Table ZA.2 — Correspondence between this European standard and Directive 87/404/EEC..........................32

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SIST EN ISO 15614-2:2005
EN ISO 15614-2:2005 (E)
Foreword

This document (EN ISO 15614-2:2005) has been prepared by Technical Committee CEN/TC 121 “Welding”,

the secretariat of which is held by DIN.

This European Standard shall be given the status of a national standard, either by publication of an identical

text or by endorsement, at the latest by October 2005, and conflicting national standards shall be withdrawn at

the latest by October 2005.
This document supersedes EN 288-4:1992.

EN ISO 15614 consists of the following parts, under the general title Specification and qualification of welding

procedures for metallic materials — Welding procedure test:

 Part 1: Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys

 Part 2: Arc welding of aluminium and its alloys
 Part 3: Welding procedure tests for the arc welding of casts iron
 Part 4: Finishing welding of aluminium castings
 Part 5: Arc welding of titanium, zirconium and their alloys
 Part 6: Arc welding of copper and its alloys
 Part 7: Overlay welding
 Part 8: Welding of tubes to tube-plate joints
 Part 10: Hyperbaric dry welding
 Part 11: Electron and laser beam welding
 Part 12: Spot, seam and projection welding
 Part 13: Resistance butt and flash welding

According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following

countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic,

Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,

Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland

and United Kingdom.
To be published.
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SIST EN ISO 15614-2:2005
EN ISO 15614-2:2005 (E)
Introduction

All new welding procedure tests are to be carried out in accordance with this document from the date of this

issue.

However, this document does not invalidate previous welding procedure tests made to former standards or

specifications or previous issues of this document.

Where additional tests have to be carried out to make the qualification technically equivalent, it is only

necessary to do the additional tests on a test piece which should be made in accordance with this document.

Requests for official interpretations of any aspect of this document should be directed to the Secretariat of

ISO/TC 44/SC 10 via your national standards body, a complete listing which can be found at www.iso.org.

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SIST EN ISO 15614-2:2005
EN ISO 15614-2:2005 (E)
1 Scope

This document specifies how a preliminary welding procedure specification is qualified by welding procedure

tests.

This document is part of a series of standards, details of this series are given in EN ISO 15607:2003, Annex A.

This document defines the conditions for the execution of welding procedure tests and the range of

qualification for welding procedures for all practical welding operations within the range of variables listed in

Clause 8.

This document applies to the arc welding of wrought and cast aluminium and its alloys. In this document the

term aluminium stands for aluminium and for aluminium alloys.

This document does not apply to finishing welding of aluminium castings which is dealt by prEN ISO 15614-4.

Arc welding of aluminium is covered by the following welding processes in accordance with EN ISO 4063:

 131 : metal inert gas welding (MlG welding);
 141 : tungsten inert gas welding (TlG welding);
 15 : plasma arc welding.

NOTE Specific service, material or manufacturing conditions may require more comprehensive testing than is

specified by this document (see 7.1).

The principles of this document may be applied to other fusion welding processes.

2 Normative references

The following referenced documents are indispensable for the application of this document. For dated

references, only the edition cited applies. For undated references, the latest edition of the referenced

document (including any amendments) applies.
EN 515, Aluminium and aluminium alloys — Wrought products — Temper designations.

EN 571-1, Non destructive testing — Penetrant testing — Part 1: General principles.

EN 1714, Non-destructive examination of welds — Ultrasonic examination of welded joints.

EN ISO 6947, Welds — Working positions — Definitions of angles of slope and rotation (ISO 6947:1993).

EN ISO 9606-2, Qualification test of welders — Fusion welding — Part 2: Aluminium and aluminium alloys

(ISO 9606-2:2004).

EN ISO 15607:2003, Specification and qualification of welding procedures for metallic materials — General

rules (ISO 15607:2003).

EN ISO 15609-1, Specification and qualification of welding procedures for metallic materials — Welding

procedure specification — Part 1: Arc welding (ISO 15609-1:2004).

EN ISO 15613, Specification and qualification of welding procedures for metallic materials — Qualification

based on pre-production welding test (ISO 15613:2004).

ISO 4136, Destructive tests on welds in metallic materials — Transverse tensile test.

ISO 5173, Destructive tests on welds in metallic materials — Bend tests.
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SIST EN ISO 15614-2:2005
EN ISO 15614-2:2005 (E)
ISO 9017, Destructive tests on welds in metallic materials — Fracture test.

ISO 10042, Arc-welded joints in aluminium and its weldable alloys — Guidance on quality levels for

imperfections.
ISO 14175, Welding consumables — Shielding gases for arc welding and cutting.

ISO 14732, Welding personnel — Approval testing of welding operators for fusion welding and resistance

weld setters for fully mechanized and automatic welding of metallic materials.

ISO 17635, Non-destructive testing of welds -— General rules for fusion welds in metallic materials .

ISO 17636, Non-destructive testing of welds —Radiographic testing of fusion-welded joints.

ISO 17637, Non-destructive testing of welds — Visual testing of fusion-welded joints

ISO 17639, Destructive tests on welds in metallic materials — Macroscopic and microscopic examination of

welds.
ISO/TR 15608, Welding — Guidelines for a metallic material grouping system.

ISO/TR 17671-1, Welding — Recommendations for welding of metallic materials — Part 1: General guidance

for arc welding.

ISO/TR 17671-4, Welding — Recommendations for welding of metallic materials — Part 4: Arc welding of

aluminium and aluminium alloys.
3 Terms and definitions

For the purposes of this document, the terms and definitions given in EN ISO 15607:2003 and the following

apply.
3.1
finishing welding

welding carried out during production in order to remove casting defects and core openings to ensure the

agreed quality of castings
4 Preliminary welding procedure specification (pWPS)

The preliminary welding procedure specification shall be prepared in accordance with EN ISO 15609-1. It shall

specify the tolerance for all the relevant parameters.

Guidance for the welding of aluminium is given in ISO/TR 17671-1 and ISO/TR 17671-4.

5 Welding procedure test

The welding and testing of test pieces shall be in accordance with Clauses 6 and 7.

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SIST EN ISO 15614-2:2005
EN ISO 15614-2:2005 (E)

The welder or welding operator who undertakes the welding procedure test satisfactorily in accordance with

this document is qualified for the appropriate range of qualification in accordance with EN ISO 9606-2 or

ISO 14732, providing that the relevant testing requirements are met.
6 Test piece
6.1 General

The welded joint to which the welding procedure will relate in production shall be represented by making a

standardized test piece or pieces, as specified in 6.2. Where the production/joint geometry requirements do

not represent the standardized test pieces as shown in this document, the use of EN ISO 15613 shall be

required.
6.2 Shape and dimensions of test pieces
6.2.1 General

The length or number of test pieces shall be sufficient to allow all required tests to be carried out.

Additional test pieces, or longer test pieces than the minimum size, may be prepared in order to allow for extra

and or for re-testing specimens (see 7.6).

For all test pieces except branch connections (see Figure 4) and T-joints (see Figure 3) the material thickness,

t, shall be the same for both plates/pipes to be welded. If required by the application standard, the direction of

working, e.g. for extrusion, shall be marked on the test piece.

The material thickness and/or pipe outside diameter of the test pieces shall be selected in accordance

with 8.3.2.1 to 8.3.2.4.
The shape and minimum dimensions of the test piece shall be as follows:
6.2.2 Butt joint in plate with full penetration
The test piece shall be prepared in accordance with Figure 1.
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SIST EN ISO 15614-2:2005
EN ISO 15614-2:2005 (E)
Key

1 Joint preparation and fit-up as detailed in the preliminary Welding Procedure Specification (pWPS)

a Minimum value 150 mm (transverse bend test specimens may require a larger a, see 7.4)

b Minimum value 300 mm
t Material thickness
Figure 1 — Test piece for a butt joint in plate with full penetration
6.2.3 Butt joint in pipe with full penetration
The test piece shall be prepared in accordance with Figure 2.

NOTE The word "pipe" alone or in combination is used to mean "pipe", "tube" or "hollow section".

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SIST EN ISO 15614-2:2005
EN ISO 15614-2:2005 (E)
Key

1 Joint preparation and fit-up as detailed in the preliminary Welding Procedure Specification (pWPS)

a Minimum value 150 mm
D Outside pipe diameter
t Material thickness
Figure 2 — Test piece for a butt joint in pipe with full penetration
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SIST EN ISO 15614-2:2005
EN ISO 15614-2:2005 (E)
6.2.4 T-joint
The test piece shall be prepared in accordance with Figure 3.
This may be used for fully penetrated butt welds or fillet welds.
Key

1 Weld one side or both sides and fit-up as detailed in the preliminary Welding Procedure Specification

(pWPS)
a Minimum value 150 mm
b Minimum value 300 mm
t Material thickness
Figure 3 — Test piece for a T-joint
6.2.5 Branch connection and fillet weld on pipe

The test piece shall be prepared in accordance with Figure 4. The branch angle α is the minimum to be used

in production.
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SIST EN ISO 15614-2:2005
EN ISO 15614-2:2005 (E)

This may be used for fully penetrated joints (set-on or set-in or set-through joint) and for T-joints.

Key

1 Joint preparation and fit-up as detailed in the preliminary Welding Procedure Specification (pWPS)

a Minimum value 150 mm
D Outside diameter of the main pipe
D Outside diameter of the branch pipe
t Main pipe material thickness
t Branch pipe material thickness
α Branch angle
Figure 4 — Test piece for a branch connection
6.3 Welding of test pieces

Preparation and welding of test pieces shall be carried out in accordance with the pWPS and under the

conditions of welding in production which they shall represent. Welding positions and limitations for the angle

of slope and rotation of the test piece shall be in accordance with EN ISO 6947. If tack welds are to be fused

into the production joint, they shall be included in the test piece.

Welding and testing of the test pieces shall be witnessed by an examiner or examining body.

7 Examination and testing
7.1 Extent of testing

Testing includes both non-destructive testing (NDT) and destructive testing, which shall be in accordance with

the requirements of Table 1.
An application standard may specify additional tests, e.g :
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SIST EN ISO 15614-2:2005
EN ISO 15614-2:2005 (E)
 longitudinal weld tensile test;
 weld metal bend test or special weld metal bend test to measure elongation;

 tensile test for the determination of the 0,2 % proof strength and/or elongation;

 chemical analysis;
 cruciform test.

NOTE Specific service, material or manufacturing conditions may require more comprehensive testing than is

specified by this document in order to gain more information and to avoid repeating the welding procedure test at a later

date just to obtain additional test data.
Table 1 — Examination and testing of the test pieces
Test piece Type of test Extent of testing Footnote
Butt joint with full penetration Visual 100 % —
Radiographic or ultrasonic 100 % —
(Figures 1 and 2) Penetrant testing 100 % —
Transverse tensile test 2 test specimens —
Transverse bend test or fracture 2 root and
test for cast materials or 2 face test specimens
wrought/cast combinations
Macroscopic examination 1 test specimen —
Microscopic examination 1 test specimen
T- joint with full penetration - Visual 100 % —
Figure 3
Penetrant testing 100 % —
Branch connection with full
Macroscopic examination 4 test specimens
penetration Figure 4
Microscopic examination 1 test specimen
Fillet welds Visual 100 % —
Figure 3 and Figure 4 Penetrant testing 100 % —
Macroscopic examination 2 test specimens —
Microscopic examination 1 test specimen

Two root and two face bend test specimens may be preferably substituted by four side bend test specimens for

t ≥ 12 mm.
Only for material group 23 and all casting alloys.

Tests as detailed do not provide information on the mechanical properties of the joint. Where these properties are

relevant to the application an additional qualification shall also be held e.g. a butt joint qualification.

For test specimens according to Figure 3, only two macro test specimens.
7.2 Location of test specimens
Test specimens shall be taken in accordance with Figures 5, 6, 7 and 8.
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SIST EN ISO 15614-2:2005
EN ISO 15614-2:2005 (E)

Test specimens shall be taken after all non-destructive testing (NDT) has been carried out and which has

passed the relevant inspection criteria for the NDT method(s) used.

It is acceptable to take the test specimens from locations avoiding areas which have imperfections within the

acceptance limits for the NDT method(s) used.
Key
1 Discard 25 mm
2 Welding direction
3 Area for: — 1 tensile test specimen
— bend test specimens or fracture test specimens
4 Area for: — additional test specimens if required
5 Area for: — 1 tensile test specimen
— bend test specimens or fracture test specimens
6 Area for: — 1 macro test specimen
— 1 micro test specimen
NOTE Not to scale.
Figure 5 — Location of test specimens for a butt joint in plate
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SIST EN ISO 15614-2:2005
EN ISO 15614-2:2005 (E)
Key
1 Top of fixed pipe
2 Area for: — 1 tensile test specimen
— bend test specimens or fracture test specimens
3 Area for: — additional test specimens if required
4 Area for: — 1 tensile test specimen
— bend test specimens or fracture test specimens
5 Area for: — 1 macro test specimen
— 1 micro test specimen
NOTE Not to scale.
Figure 6 — Location of test specimens for a butt joint in pipe
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SIST EN ISO 15614-2:2005
EN ISO 15614-2:2005 (E)
Key
1 Discard 25 mm
2 Micro and macro test specimens
3 1 macro test specimen
4 Welding direction
Figure 7 — Location of test specimens for a T-joint
Key
α Branch angle
Macro test specimens to be taken in positions A and A and B and B
1 1
Micro test specimen to be taken in position A

Figure 8 — Location of test specimens for a branch connection or a fillet weld on pipe

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SIST EN ISO 15614-2:2005
EN ISO 15614-2:2005 (E)
7.3 Non-destructive testing

All non-destructive testing in accordance with 7.1 and Table 1 shall be carried out on the test pieces prior to

cutting of the test specimens.

Depending upon joint geometry, materials and the requirements for work, the NDT shall be carried out as

required in Table 1 in accordance with ISO 17637 (visual examination), ISO 17636 (radiographic examination),

EN 1714 (ultrasonic examination), EN 571-1 (penetrant testing).
7.4 Destructive tests
7.4.1 General
The extent of testing shall be as required by Table 1.
7.4.2 Transverse tensile test

Test specimens and testing for transverse tensile testing for butt joints shall be in accordance with ISO 4136.

For pipes > 50 mm outside diameter, the excess weld metal shall be removed on both faces to give the test

specimen a thickness equal to the wall thickness of the pipe.

For pipes ≤ 50 mm outside diameter, and when full section small diameter pipes are used, the excess weld

metal may be left undressed on the inside surface of the pipe.

The tensile strength of the test specimen shall not be less than the corresponding specified minimum value for

the parent material required in the relevant standard, in the "O" condition for groups 21 and 22, see Table 2.

The tensile strength R (w) of the welded test specimen in the as post-welded condition shall satisfy the

following requirement:
R ()w = R (pm)×T
m m
where

R (w) is the tensile strength of the welded test specimen in the as post-welded condition;

R (pm) is the specified minimum tensile strength of the parent material required in the relevant standard;

T is the joint efficiency factor.

For combinations between different alloys the lowest individual R (w) value shall be achieved.

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SIST EN ISO 15614-2:2005
EN ISO 15614-2:2005 (E)
Table 2 — Efficiency for tensile strength of butt joints
Material group c
R ()w
Temper condition of parent Post weld condition m
T =
or sub-group a b
material before welding R()pm
(see ISO/TR 15608)
21 All temper conditions As welded 1,0
22 All temper conditions As welded
1,0
T4 Natural ageing 0,7
e f
T4 Artificial ageing
0,7
23.1
T5 and T6 Natural ageing 0,6
T5 and T6 Artificial ageing
0,7
T4 Natural ageing 0,95
e f
T4 Artificial ageing
0,75
23.2
T6 Natural ageing 0,75
T6 Artificial ageing
0,75
g g
Other alloys All temper conditions
— —
See EN 515.

For parent material in other tempers not shown in the Table, R (w) shall be in accordance with the design

specification.
Ageing conditions shall be in accordance with the design specification.

R (pm) is based on the specified minimum tensile strength of the "O" condition, irrespective of the actual parent

material temper used for the test.

When the test pieces are artificially aged after welding and prior to testing, the efficiency factor T applies to

the T6 parent material condition.

Higher properties may be achieved if post-weld full heat treatment is applied. R (w) shall be in accordance wi

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Questions, Comments and Discussion

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