DIN en ISO 4136 (Anglais - Mai 2011)

DIN EN ISO 4136

Mai 2011

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ICS 25.160.40

!$pWE"1775234

www.din.de

DDIN EN ISO 4136

Destructive tests on welds in metallic materials –Transverse tensile test (ISO 4136:2001)

English translation of DIN EN ISO 4136:2011-05

Zerstörende Prüfung von Schweißverbindungen an metallischen Werkstoffen –Querzugversuch (ISO 4136:2001)Englische Übersetzung von DIN EN ISO 4136:2011-05

Essais destructifs des soudures sur matériaux métalliques –Essai de traction transversale (ISO 4136:2001)Traduction anglaise de DIN EN ISO 4136:2011-05

©

SupersedesDIN EN 895:1999-05

www.beuth.de

Document comprises pages

In case of doubt, the German-language original shall be considered authoritative.

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04.11

DIN EN ISO 4136 : 2011-05PERSONAL WEBPORT pour client ALSTOM POWER le 22/09/2011 à 12:01

DIN EN ISO 4136:2011-05

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A comma is used as the decimal marker.

National foreword

This standard has been prepared by Technical Committee ISO/TC 44 “Welding and allied processes”, Subcommittee SC 5 “Testing and inspection of welds” (Secretariat: ANSI, USA) in collaboration with Technical Committee CEN/TC 121 “Welding” (Secretariat: DIN, Germany).

The responsible German body involved in its preparation was the Normenausschuss Schweißtechnik (Welding Standards Committee), Joint Committee NA 092-00-05 GA NAS/NMP: Zerstörende Prüfung von Schweiß-verbindungen (DVS AG Q 4).

The DIN Standards corresponding to the International Standards referred to in this document are as follows:

ISO 4063:1998 DIN EN ISO 4063:2000-04 ISO 6892 DIN EN 10002-1 (similar)

ISO 6892 was replaced in 2009 by ISO 6892-1. This is identical with DIN EN ISO 6892-1:2009-12.

Amendments

This standard differs from DIN EN 895:1999-05 as follows:

a) the number of the standard has been changed;

b) the content of the standard has been adopted without any modification.

Previous editions

DIN DVMA 120: 1937-09 DIN 50120: 1947-01, 1952-11 DIN 50120-1: 1975-09 DIN 50120-2: 1978-08 DIN 50123: 1943x-05, 1959-12, 1977-04 DIN EN 895: 1995-08, 1999-05

National Annex NA (informative)

Bibliography

DIN EN 10002-1, Metallic materials — Tensile testing — Part 1: Method of testing at ambient temperature

DIN EN ISO 4063:2000-04, Welding and allied processes — Nomenclature of processes and reference numbers

DIN EN ISO 6892-1, Metallic materials — Tensile testing — Part 1: Method of test at room temperature


EUROPEAN STANDARD

NORME EUROPÉENNE

EUROPÄISCHE NORM

EN ISO 4136

March 2011

ICS 25.160.40 Supersedes EN 895:1995

English Version

Destructive tests on welds in metallic materials - Transverse tensile test (ISO 4136:2001)

Essais destructifs des soudures sur matériaux métalliques -Essai de traction transversale (ISO 4136:2001)

Zerstörende Prüfung von Schweißverbindungen an metallischen Werkstoffen - Querzugversuch

(ISO 4136:2001)

This European Standard was approved by CEN on 13 February 2011. 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 CEN-CENELEC 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 translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION C O M I T É E U R O P É E N D E N O R M A LI S A T I O N EUR OP ÄIS C HES KOM ITEE FÜR NOR M UNG

Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members.

Ref. No. EN ISO 4136:2011: E


Contents Page

Foreword..............................................................................................................................................................3

1 Scope ......................................................................................................................................................4

2 Normative references ............................................................................................................................4

3 Principle..................................................................................................................................................4

4 Symbols and abbreviated terms ..........................................................................................................4

5 Preparation of test specimens .............................................................................................................5 5.1 Location ..................................................................................................................................................5 5.2 Marking ...................................................................................................................................................5 5.3 Heat treatment and/or ageing ...............................................................................................................5 5.4 Extraction ...............................................................................................................................................6 5.5 Machining ...............................................................................................................................................6

6 Test procedure .....................................................................................................................................10

7 Test results...........................................................................................................................................10 7.1 General..................................................................................................................................................10 7.2 Location of fracture .............................................................................................................................10 7.3 Examination of fracture surfaces.......................................................................................................10

8 Test report ............................................................................................................................................11

Annex A (informative) Example of a test report .............................................................................................12

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Foreword

The text of ISO 4136:2001 has been prepared by Technical Committee ISO/TC 44 “Welding and allied processes” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 4136:2011 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 September 2011, and conflicting national standards shall be withdrawn at the latest by September 2011.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.

This document supersedes EN 895:1995.

According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.

Endorsement notice

The text of ISO 4136:2001 has been approved by CEN as a EN ISO 4136:2011 without any modification.

DIN EN ISO 4136:2011-05 EN ISO 4136:2011 (E)

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1 Scope

This International Standard specifies the sizes of test specimen and the procedure for carrying out transversetensile tests in order to determine the tensile strength and the location of fracture of a welded butt joint.

This International Standard applies to metallic materials in all forms of product with joints made by any fusionwelding process.

Unless otherwise specified for specific points in this International Standard, the general principles of ISO 6892apply.

2 Normative references

The following normative documents contain provisions which, through reference in this text, constitute provisions ofthis International Standard. For dated references, subsequent amendments to, or revisions of, any of thesepublications do not apply. However, parties to agreements based on this International Standard are encouraged toinvestigate the possibility of applying the most recent editions of the normative documents indicated below. Forundated references, the latest edition of the normative document referred to applies. Members of ISO and IECmaintain registers of currently valid International Standards.

ISO 4063:1998, Welding and allied processes — Nomenclature of processes and reference numbers.

ISO 6892, Metallic materials — Tensile testing at ambient temperature.

3 Principle

An increasing tensile load is continuously applied until rupture occurs in a test specimen taken transversely from awelded joint.

Unless otherwise specified, the test shall be carried out at ambient temperature (23 � 5) �C

4 Symbols and abbreviated terms

The symbols and abbreviated terms to be used for the transverse tensile tests are specified in Table 1 andrepresented in Figures 1 to 3.

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Table 1 — Symbols and abbreviated terms

Symbol Term Unit

b Width of the parallel length mm

b1 Width of shoulder mm

d Diameter of the plug mm

D Outside diameter of the pipe a mm

Lc Parallel length mm

Lo Original gauge length mm

Ls Maximum width of the weld after machining mm

Lt Total length of the test specimen mm

r Radius of shoulder mm

t Thickness of the welded joint mm

ts Thickness of the test specimen mm

a The term "pipe", alone or in combination, is used to mean "pipe", "tube" or "hollowsection (without rectangular cross section)".

5 Preparation of test specimens

5.1 Location

The test specimen shall be taken transversely from the welded joint in such a way that, after machining, the weldaxis remains in the middle of the parallel length of the test specimen. For small diameter pipes, the test may becarried out on whole pipe (see Figure 3). If not specified by the application standards or agreed upon between thecontracting parties, “small diameters” means D < 18 mm.

5.2 Marking

Each test piece shall be marked in order to identify its exact location in the manufactured product or in the jointfrom which it has been removed.

If required by the relevant application standard, the direction of working (e.g. rolling or extrusion) shall be marked.

Each test specimen shall be marked in order to identify its exact location in the test piece from which it has beenremoved.

When removed from the test piece, each test specimen shall be marked.

5.3 Heat treatment and/or ageing

No heat treatment shall be applied to the welded joint or to the test specimen unless it is specified or allowed by therelevant application standard dealing with the welded joint to be tested. Details of any heat treatment shall berecorded in the test report. If natural ageing of aluminium alloys takes place, the time between welding and testingshall be recorded.

NOTE The presence of hydrogen in ferrous weld metals may adversely affect the test results and suitable hydrogenrelease treatment may be necessary.

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5.4 Extraction

5.4.1 General

The mechanical or thermal processes used to extract the test specimen shall not change the properties of the testspecimen in any way.

5.4.2 Steel

Shearing is excluded for thicknesses � 8 mm. If thermal cutting or other cutting methods which could affect the cutsurfaces are used to cut the test specimen from the welded plate or from the test piece, the cuts shall be made at adistance W 8 mm from the surfaces of the final parallel length of the test specimen. Thermal cutting shall not beused parallel to the original surface of the welded plate or of the test piece.

5.4.3 Other metallic materials

Shearing and thermal cutting are excluded, and only machining (e.g. sawing or milling) shall be used.

5.5 Machining

5.5.1 General

The tolerances specified in ISO 6892 shall apply.

5.5.2 Location

In general, the thickness of the test specimen, ts, shall be equal to the thickness of the parent metal near thewelded joint [see Figure 1a)]. When a relevant application standard requires testing of the full thickness � 30 mm,several test specimens may be taken to cover the full thickness of the joint [see Figure 1b)]. In such cases, thelocation of the test specimen in the welded joint thickness shall be identified.

a) Full section test

NOTE The test pieces may overlap.

b) Multi specimen test

Figure 1 — Examples of the location of test specimens in joints

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5.5.3 Dimensions

5.5.3.1 Plates and pipes

The thickness of the test specimen shall be constant along the parallel length, Lc; the shape and dimensions shallconform to those given in Table 2 with reference to the symbols shown in Figure 2.

For the test specimen machined from pipe, flattening of the gripped ends may be necessary; however, thisflattening and the possible resulting variation in thickness shall not affect the parallel length, Lc.

Table 2 — Dimensions for plates and pipes

Dimensions in millimetres

Denomination Symbol Dimensions

Total length of the test specimen Lt to suit particular testing machine

Width of shoulder b1 b � 12

platesb 12 for ts u 2

25 for ts � 2

Width of the parallel length

pipes

b 6 for D u 50

12 for 50 � D u 168,3

25 for D � 168,3

Parallel length a b Lc W Ls � 60

Radius at shoulder r W 25

a For pressure welding and beam welding (process groups 2, 4, 51 and 52 in accordance withISO 4063:1998), Ls = 0.

b For some other metallic materials (e.g. aluminium, copper and their alloys) Lc W Ls � 100 may benecessary.

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a) Test specimen for plates

b) Test specimen for pipes

Figure 2 — Test specimens for plates and pipes

5.5.3.2 Full section pipes

The dimensions for full section pipe test specimens are shown in Figure 3.

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Figure 3 — Tensile test specimen for full section pipe

5.5.3.3 Solid sections

Dimensions of test specimen from solid sections shall be agreed between the contracting parties. Where machinedcylindrical test specimens are required, the dimensions shall be as in ISO 6892, except that the parallel length, Lc,shall be not less than Ls � 60 mm, as shown in Figure 4.

For aluminium, copper and their alloys, refer to the note b to Table 2.

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Figure 4 — Cylindrical test specimen for solid section

5.5.4 Surface preparation

The final stages of preparation shall be performed by machining or grinding, suitable precautions being taken toavoid superficial strain hardening or excessive heating of the material. The surfaces shall be free from scratches ornotches transverse to the test specimen direction in the parallel length, Lc, except for undercut which shall not beremoved unless required by the relevant application standard.

The surfaces of the test specimen shall be machined in such a way that, unless specified otherwise in the relevantapplication standard, all excess weld metal is removed. Unless specified otherwise the penetration bead shall beleft intact inside full section pipes.

6 Test procedure

The test specimen shall be loaded gradually and continuously in accordance with ISO 6892.

7 Test results

7.1 General

The test results shall be determined in accordance with ISO 6892.

7.2 Location of fracture

The location of the fracture shall be noted and reported.

If necessary, the side of the test specimen may be macroetched to assist location of the weld.

7.3 Examination of fracture surfaces

After rupture of the test specimen, the fracture surfaces shall be examined and the existence of any imperfectionsthat may have adversely affected the test shall be recorded, including their type, size and quantity. If fish eyes arepresent, they shall be recorded and only their central regions shall be considered as imperfections.

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8 Test report

The test report shall include the following information in addition to that given in ISO 6892.

a) reference to this International Standard i.e., ISO 4136;

b) type and location of test specimen, sketch if required (see Figure 1);

c) test temperature if outside the ambient temperature;

d) location of fracture;

e) type and dimensions of imperfections observed.

An example of a typical test report is given in annex A.

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Annex A(informative)

Example of a test report

No. ............

According to pWPS ............

According to test result “tensile test”

test result “ ................”

Manufacturer: ............................................

Purpose of the examination: ............................................

Form of product: ............................................

Parent metal: ............................................

Filler metal: ............................................

Test temperature: ............................................

Table A.1 — Transverse tensile test in accordance with ISO 4136

Testspecimen

No./position

Dimension/diameter

mm

Maximum load

Fm

N

Ultimate tensilestrength

Rm

N/mm2

Location offracture

Remark

e.g. fracture appearance

Examiner or test body: Certified by:

........................................................ ........................................

(name, date and signature) (name, date and signature)

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DIN en ISO 4136 (Anglais - Mai 2011)