SIST EN ISO 15614-1:2004
(Main)Specification and qualification of welding procedures for metallic materials - Welding procedure test - Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys (ISO 15614-1:2004)
Specification and qualification of welding procedures for metallic materials - Welding procedure test - Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys (ISO 15614-1:2004)
This European Standard is part of a series of standards, details of this series are given in prEN ISO 15607, annex A.
This standard specifies how a preliminary welding procedure specification is qualified by welding procedure tests.
This standard 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.
Tests shall be carried out in accordance with this standard. Additional tests may be required by application standards.
This standard applies to the arc and gas welding of steels in all product forms and the arc welding of nickel and nickel alloys in all product forms
Arc and gas welding are covered by the following processes in accordance with EN ISO 4063:
111 - manual metal arc welding (metal-arc welding with covered electrode);
114 - self-shielded tubular-cored arc welding;
12 - submerged arc welding;
131 - metal inert gas welding, MIG welding;
135 - metal active gas welding, MAG welding;
136 - tubular-cored metal arc welding with active gas shield;
137 - tubular-cored metal arc welding with inert gas shield;
141 - tungsten inert gas arc welding; TIG welding;
15 - plasma arc welding;
311 - oxy-acetylene welding.
The principles of this European Standard may be applied to other fusion welding processes.
Anforderung und Qualifizierung von Schweißverfahren für metallische Werkstoffe - Schweißverfahrensprüfung - Teil 1: Lichtbogen- und Gasschweißen von Stählen und Lichtbogenschweißen von Nickel und Nickellegierungen (ISO 15614-1:2004)
Diese Norm legt fest, wie eine Schweißanweisung durch Schweißverfahrensprüfungen anerkannt wird.
Descriptif et qualification d'un mode opératoire de soudage pour les matériaux métalliques - Epreuve de qualification d'un mode opératoire de soudage - Partie 1: Soudage a l'arc et aux gaz des aciers et soudage a l'arc des nickels et alliages de nickel (ISO 15614-1:2004)
La présente norme fait partie d'une série de normes, des détails sur cette série de normes sont donnés dans l'Annexe A de l'EN ISO 15607:2003.
La présente norme spécifie comment un descriptif de mode opératoire de soudage préliminaire est qualifié par une épreuve.
La présente norme définit les conditions d'exécution des épreuves de qualification de mode opératoire de soudage et le domaine de validité du mode opératoire de soudage, pour toutes les opérations pratiques de soudage englobant la liste des variables mentionnées a l'Article 8.
Les contrôles, examens et essais doivent etre réalisés conformément a la présente norme. Des contrôles, examens et essais complémentaires peuvent etre exigés par des normes d'application.
La présente norme s'applique au soudage a l'arc et aux gaz des aciers sous toutes formes et au soudage a l'arc du nickel et des alliages de nickel sous toutes formes.
Les soudages a l'arc et aux gaz sont couverts par les procédés suivants, conformément a l'EN ISO 4063 :
- 111 - soudage manuel a l'arc avec électrode enrobée ;
- 114 - soudage a l'arc avec fil fourré auto protecteur ;
- 12 - soudage a l'arc sous flux (en poudre) ;
- 131 - soudage MIG (soudage a l'arc sous protection de gaz inerte avec fil-électrode fusible) ;
- 135 - soudage MAG (soudage a l'arc sous protection de gaz actif avec fil-électrode fusible) ;
- 136 - soudage MAG avec fil fourré (soudage a l'arc sous protection de gaz actif avec fil-électrode fourré) ;
- 137 - soudage MIG avec fil fourré (soudage a l'arc sous protection de gaz inerte avec fil-électrode fourré) ;
- 141 - soudage TIG (soudage a l'arc sous protection de gaz inerte avec électrode de tungstene) ;
- 15 - soudage plasma ;
- 311 - soudage oxyacétylénique.
Les principes de la présente Norme européenne peuvent s'appliquer a d'autres procédés de soudage par fusion.
Specifikacija in razvrščanje varilnih postopkov za kovinske materiale - Preskus postopka varjenja - 1. del: Obločno in plinsko varjenje jekel in obločno varjenje niklja in nikljevih zlitin (ISO 15614-1:2004)
Ta evropski standard je del skupine standardov. Podrobnosti te skupine so navedene v dodatku A standarda EN ISO 15607:2003. Ta standard določa, kako se predhodna specifikacija varilnega postopka razvrsti s preskusi varilnih postopkov. Ta standard določa pogoje za izvajanje preskusov varilnih postopkov in razpon razvrščanja za varilne postopke za vse praktične varilne operacije v okviru spremenljivk iz točke 8. Preskusi se izvajajo v skladu s tem standardom. Standardi uporabe lahko določajo dodatne preskuse. Ta standard se uporablja za obločno in plinsko varjenje jekel v vseh proizvodnih oblikah ter obločno varjenje niklja in nikljevih zlitin v vseh proizvodnih oblikah. Obločno in plinsko varjenje sta zajeta v naslednjih postopkih v skladu s standardom EN ISO 4063: 111; ročno obločno varjenje (obločno varjenje s pokrito elektrodo); 114: varjenje s stržensko žico z lastnim ščitom; 12: obločno varjenje pod praškom; 131: obločno varjenje s kovinsko varilno žico, z inertnim plinom, varjenje MIG; 135: obločno varjenje s kovinsko varilno žico, z aktivnim plinom, varjenje MAG; 136: varjenje s stržensko žico s ščitom iz aktivnega plina; 137: varjenje s stržensko žico s ščitom iz inertnega plina; 141: obločno varjenje z inertnim plinom in volframovo elektrodo, varjenje TIG; 15: plazemsko obločno varjenje; 311: oksiacetilensko varjenje. Načela tega evropskega standarda je mogoče uporabiti za druge postopke fuzijskega varjenja.
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Anforderung und Qualifizierung von Schweißverfahren für metallische Werkstoffe - Schweißverfahrensprüfung - Teil 1: Lichtbogen- und Gasschweißen von Stählen und Lichtbogenschweißen von Nickel und Nickellegierungen (ISO 15614-1:2004)Descriptif et qualification d'un mode opératoire de soudage pour les matériaux métalliques - Epreuve de qualification d'un mode opératoire de soudage - Partie 1: Soudage a l'arc et aux gaz des aciers et soudage a l'arc des nickels et alliages de nickel (ISO 15614-1:2004)Specification and qualification of welding procedures for metallic materials - Welding procedure test - Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys (ISO 15614-1:2004)77.120.40Nikelj, krom in njune zlitineNickel, chromium and their alloys77.080.20JeklaSteels25.160.10Varilni postopki in varjenjeWelding processesICS:Ta slovenski standard je istoveten z:EN ISO 15614-1:2004SIST EN ISO 15614-1:2004en01-september-2004SIST EN ISO 15614-1:2004SLOVENSKI
STANDARDSIST EN 288-3:1996/A1:1999SIST EN 288-3:19961DGRPHãþDSIST EN ISO 15614-1:2004
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN ISO 15614-1June 2004ICS 25.160.10English versionSpecification and qualification of welding procedures for metallicmaterials - Welding procedure test - Part 1: Arc and gas weldingof steels and arc welding of nickel and nickel alloys (ISO 15614-1:2004)Descriptif et qualification d'un mode opératoire de soudagepour les matériaux métalliques - Epreuve de qualificationd'un mode opératoire de soudage - Partie 1: Soudage àl'arc et aux gaz des aciers et soudage à l'arc des nickels etalliages de nickel (ISO 15614-1:2004)Anforderung und Qualifizierung von Schweißverfahren fürmetallische Werkstoffe - Schweißverfahrensprüfung - Teil1: Lichtbogen- und Gasschweißen von Stählen undLichtbogenschweißen von Nickel und Nickellegierungen(ISO 15614-1:2004)This European Standard was approved by CEN on 7 May 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 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 translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.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 STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2004 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 15614-1:2004: ESIST EN ISO 15614-1:2004
EN ISO 15614-1:2004 (E)2ContentspageForeword......................................................................................................................................................................3Introduction.................................................................................................................................................................41Scope..............................................................................................................................................................42Normative references....................................................................................................................................53Terms and definitions....................................................................................................................................64Preliminary welding procedure specification (pWPS)...............................................................................65Welding procedure test.................................................................................................................................66Test piece........................................................................................................................................................66.1General............................................................................................................................................................66.2Shape and dimensions of test pieces..........................................................................................................66.3Welding of test pieces...................................................................................................................................77Examination and testing.............................................................................................................................107.1Extent of testing...........................................................................................................................................107.2Location and taking of test specimens.....................................................................................................127.3Non-destructive testing...............................................................................................................................167.4Destructive testing.......................................................................................................................................167.5Acceptance levels........................................................................................................................................197.6Re-testing......................................................................................................................................................198Range of qualification.................................................................................................................................208.1General..........................................................................................................................................................208.2Related to the manufacturer.......................................................................................................................208.3Related to the parent material....................................................................................................................208.4Common to all welding procedures...........................................................................................................248.5Specific to processes..................................................................................................................................269Welding procedure qualification record (WPQR).....................................................................................27Annex A (informative)
Welding Procedure Qualification Record form (WPQR)................................................28Annex ZA (normative) Corresponding International and European Standards for which equivalents arenot given in the text.....................................................................................................................................31Annex ZB (informative)
Clauses of this European Standard addressing essential requirements or otherprovisions of EU directives.........................................................................................................................32Annex ZC (Informative)
Clauses of this European Standard addressing essential requirements orother provisions of EU directives...............................................................................................................33SIST EN ISO 15614-1:2004
EN ISO 15614-1:2004 (E)3ForewordThis document (EN ISO 15614-1:2004) has been prepared by Technical Committee CEN/TC 121 "Welding", thesecratariat of which is held by DS, in collaboration with Technical Committee ISO/TC 44 "Welding and alliedprocesses".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 December 2004, and conflicting national standards shall be withdrawn at the latestby December 2004.This document replaces EN 288-3:1992.This document has been prepared under a mandate given to CEN by the European Commission and the EuropeanFree Trade Association, and supports essential requirements of EU Directive(s).For relationship with EU Directive(s), see informative annexes ZB and ZC, which are an integral part of thisdocument.Annex A is informative.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries 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.SIST EN ISO 15614-1:2004
EN ISO 15614-1:2004 (E)4IntroductionAll new welding procedure tests are to be carried out in accordance with this standard from the date of its issue.However, this European Standard does not invalidate previous welding procedure tests made to former nationalstandards or specifications or previous issues of this standard.Where additional tests have to be carried out to make the qualification technically equivalent, it is only necessary todo the additional tests on a test piece which should be made in accordance with this standard.1 ScopeThis European Standard is part of a series of standards, details of this series are given in EN ISO 15607:2003,annex A.This standard specifies how a preliminary welding procedure specification is qualified by welding procedure tests.This standard defines the conditions for the execution of welding procedure tests and the range of qualification forwelding procedures for all practical welding operations within the range of variables listed in clause 8.Tests shall be carried out in accordance with this standard. Additional tests may be required by applicationstandards.This standard applies to the arc and gas welding of steels in all product forms and the arc welding of nickel andnickel alloys in all product formsArc and gas welding are covered by the following processes in accordance with EN ISO 4063:111- manual metal arc welding (metal-arc welding with covered electrode);114- self-shielded tubular-cored arc welding;12- submerged arc welding;131- metal inert gas welding, MIG welding;135- metal active gas welding, MAG welding;136- tubular-cored metal arc welding with active gas shield;137- tubular-cored metal arc welding with inert gas shield;141- tungsten inert gas arc welding; TIG welding;15- plasma arc welding;311- oxy-acetylene welding.The principles of this European Standard may be applied to other fusion welding processes.SIST EN ISO 15614-1:2004
EN ISO 15614-1:2004 (E)52 Normative referencesThis European Standard incorporates by dated or undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places in the text, and the publications are listed hereafter. Fordated references, subsequent amendments to or revisions 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 (including amendments).EN 439, Welding consumables – Shielding gases for arc welding and cutting.EN 571-1, Non destructive testing – Penetrant testing – Part 1: General principles.EN 875, Destructive tests on welds in metallic materials - Impact tests - Test specimen location, notch orientationand examination.EN 895, Destructive tests on welds in metallic materials – Transverse tensile test.EN 910, Destructive tests on welds in metallic materials – Bend tests.EN 970, Non-destructive examination of fusion welds - Visual examination.EN 1011-1 Welding –Recommendations for welding of metallic materials –Part 1: General guidance for arc weldingEN 1043-1:1995, Destructive tests on welds in metallic materials – Hardness testing – Part 1: Hardness test on arcwelded joints.EN 1290, Non-destructive examination of welds - Magnetic particle examination of welds.EN 1321, Destructive tests on welds in metallic materials - Macroscopic and microscopic examination of welds.EN 1418, Welding personnel - Approval testing of welding operators for fusion welding and resistance weld settersfor fully mechanized and automatic welding of metallic materials.EN 1435, Non destructive examination of welds – Radiographic examination of welded joints.EN 1714, Non destructive examination of welds – Ultrasonic examination of welded joints.EN ISO 4063, Welding and allied processes – Nomenclature of processes and reference numbers(ISO 4063:1998).EN ISO 6947, Welds - Working positions - Definitions of angles of slope and rotation (ISO 6947:1993).prEN ISO 9606-1, Qualification testing of welders - Fusion welding - Part 1: Steels (ISO/DIS 9606-1:2000).EN ISO 9606-4, Approval testing of welders – Fusion welding – Part 4: Nickel and nickel alloys. (ISO 9606-4:1999).EN 12062, Non-destructive examination of welds - General rules for metallic materials.EN ISO 15607:2003, Specification and qualification of welding procedures for metallic materials - General rules(ISO 15607:2003).CR ISO 15608:2000 , Welding - Guidelines for a metallic material grouping system (ISO/TR 15608:2000).prEN ISO 15609-1, Specification and approval of welding procedures for metallic materials – Welding procedurespecification – Part 1: Arc welding (ISO/DIS 15609-1:2000).EN ISO 15609-2, Specification and qualification of welding procedures for metallic materials – Welding procedurespecification – Part 2: Gas welding (ISO 15609-2:2001).EN ISO 15613, Specification and qualification of welding procedure for metallic materials – Qualification based onpre-production welding test (ISO 15613:2003).SIST EN ISO 15614-1:2004
EN ISO 15614-1:2004 (E)6EN 25817, Arc-welded joints in steel - Guidance on quality levels for imperfections (ISO 5817:1992).3 Terms and definitionsFor the purposes of this European Standard, the terms and definitions given in EN ISO 15607:2003 apply.4 Preliminary welding procedure specification (pWPS)The preliminary welding procedure specification shall be prepared in accordance with prEN ISO 15609-1 orEN ISO 15609-2.5 Welding procedure testThe welding and testing of test pieces shall be in accordance with clauses 6 and 7.The welder or welding operator who undertakes the welding procedure test satisfactorily in accordance with thisstandard is qualified for the appropriate range of qualification according to prEN ISO 9606-1 or EN ISO 9606-4 orEN 1418, providing that the relevant testing requirements are met.6 Test piece6.1 GeneralThe welded joint to which the welding procedure will relate in production shall be represented by making astandardized test piece or pieces, as specified in 6.2. Where the production/joint geometry requirements do notrepresent the standardized test pieces as shown in this standard, the use of EN ISO 15613 shall be required.6.2 Shape and dimensions of test piecesThe 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 extraand/or for re-testing specimens (see 7.6).For all test pieces except branch connections (see Figure 4) and fillet welds (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 plate rolling shall be marked on the test piece when impacttests are required to be taken in the Heat Affected Zone (HAZ).The thickness and/or pipe outside diameter of the test pieces shall be selected in accordance with 8.3.2.1 to8.3.2.3.The shape and minimum dimensions of the test piece shall be as follows:6.2.1 Butt joint in plate with full penetrationThe test piece shall be prepared in accordance with Figure 1.6.2.2 Butt joint in pipe with full penetrationThe test piece shall be prepared in accordance with Figure 2.NOTEThe word “pipe”, alone or in combination, is used to mean “pipe”, “tube” or “hollow section”.SIST EN ISO 15614-1:2004
EN ISO 15614-1:2004 (E)76.2.3 T-jointThe test piece shall be prepared in accordance with Figure 3.This may be used for fully penetrated butt welds or fillet welds.6.2.4 Branch connectionThis may be used for fully penetrated joints (set-on or set-in or set-through joint) and for fillet welds.6.3 Welding of test piecesPreparation and welding of test pieces shall be carried out in accordance with the pWPS, and under the generalconditions of welding in production which they shall represent. Welding positions and limitations for the angle ofslope and rotation of the test piece shall be in accordance with EN ISO 6947. If tack welds are to be fused into thefinal joint they shall be included in the test piece.Welding and testing of the test pieces shall be witnessed by an examiner or an examining body.SIST EN ISO 15614-1:2004
EN ISO 15614-1:2004 (E)8Key1Joint preparation and fit-up as detailed in the preliminary Welding Procedure Specification (pWPS)a
Minimum value 150 mmbMinimum value 350 mmt
Material thicknessFigure 1 — Test piece for a butt joint in plate with full penetrationSIST EN ISO 15614-1:2004
EN ISO 15614-1:2004 (E)9Key1Joint preparation and fit-up as detailed in the preliminary Welding Procedure Specification (pWPS)a
Minimum value 150 mmDOutside pipe diametert
Material thicknessFigure 2 — Test piece for a butt joint in pipe with full penetrationKey1Joint preparation and fit-up as detailed in the preliminary Welding Procedure Specification (pWPS)aMinimum value 150 mmbMinimum value 350 mmtMaterial thicknessFigure 3 — Test piece for a T- jointSIST EN ISO 15614-1:2004
EN ISO 15614-1:2004 (E)10Key1Joint preparation and fit-up as detailed in the preliminary Welding Procedure Specification (pWPS)aBranch angleaMinimum value 150 mmD1Outside diameter of the main pipet1Main pipe material thicknessD2Outside diameter of the pipet2Branch pipe material thicknessFigure 4 — Test piece for a branch connection7 Examination and testing7.1 Extent of testingTesting includes both non-destructive testing (NDT) and destructive testing which shall be in accordance with therequirements of Table 1.An application standard may specify additional tests, e.g.:¾ longitudinal weld tensile test;¾ all weld metal bend test;¾ corrosion tests;¾ chemical analysis;SIST EN ISO 15614-1:2004
EN ISO 15614-1:2004 (E)11¾ micro examination;¾ delta ferrite examination;¾ cruciform test.NOTESpecific service, material or manufacturing conditions may require more comprehensive testing than is specified bythis standard in order to gain more information and to avoid repeating the welding procedure test at a later date just to obtainadditional test data.SIST EN ISO 15614-1:2004
EN ISO 15614-1:2004 (E)12Table 1 — Examination and testing of the test piecesTest pieceType of testExtent of testingFootnoteButt joint with fullpenetration - Figure 1and Figure 2VisualRadiographic or ultrasonicSurface crack detectionTransverse tensile testTransverse bend testImpact testHardness testMacroscopic examination100 %100 %100 %2 specimens4 specimens2 setsrequired1 specimen-ab-cde-T- joint with fullpenetration - Figure 3Branch connection withfull penetration -Figure 4VisualSurface crack detectionUltrasonic or radiographicHardness testMacroscopic examination100 %100 %100 %required2 specimensfb and fa, f and ge and ffFillet welds - Figure 3and Figure 4VisualSurface crack detectionHardness testMacroscopic examination100 %100 %required2 specimensfb and fe and ffaUltrasonic testing shall not be used for t < 8 mm and not for material groups 8, 10, 41 to 48.bPenetrant testing or magnetic particle testing. For non-magnetic materials, penetrant testing.cFor bend tests, see 7.4.3.d1 set in the weld metal and 1 set in the HAZ for materials > 12 mm
thick and having specified impact properties.Application standards may require impact testing below 12 mm thick. The testing temperature shall be chosen by themanufacturer with regard to the application or application standard but need not be lower than the parent metalspecification. For additional tests see 7.4.5.eNot required for parent metals: -sub-group 1.1, and groups 8, 41 to 48.fTests as detailed do not provide information on the mechanical properties of the joint. Where these properties arerelevant to the application an additional qualification shall also be held e.g. a butt weld qualification.gFor outside diameter £ 50 mm no ultrasonic test is required.For outside diameter > 50 mm and where it is not technically possible to carry out ultrasonic examination, aradiographic examination shall be carried out provided that the joint configuration will allow meaningful results.7.2 Location and taking of test specimensTest specimens shall be taken in accordance with Figures, 5, 6, 7 and 8.Test specimens shall be taken after all non-destructive testing (NDT) has been carried out and which has passedthe 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 theacceptance limits for the NDT method(s) used.SIST EN ISO 15614-1:2004
EN ISO 15614-1:2004 (E)13Key1Discard 25 mm2Welding direction3Area for:- 1 tensile test specimen;- bend test specimens.4Area for:- impact and additional test specimens if required.5Area for:- 1 tensile test specimen;- bend test specimens.6Area for:- 1 macro test specimen;- 1 hardness test specimen.NOTENot to scale.Figure 5 — Location of test specimens for a butt joint in plateSIST EN ISO 15614-1:2004
EN ISO 15614-1:2004 (E)14Key1Top of fixed pipe2Area for:- 1 tensile test specimen;- bend test specimens.3Area for:- impact and additional test specimens if required.4Area for:- 1 tensile test specimen;- bend test specimens.5Area for:- 1 macro test specimen;- 1 hardness test specimen.NOTENot to scale.Figure 6 — Location of test specimens for a butt joint in pipeSIST EN ISO 15614-1:2004
EN ISO 15614-1:2004 (E)15Key1Discard 25 mm2Macro test specimen3Macro and hardness test specimen4Welding directionFigure 7 — Location of test specimens in a T- jointSIST EN ISO 15614-1:2004
EN ISO 15614-1:2004 (E)16Key1Macro and hardness test specimen to be taken(in position A)2Macro test specimen in position B = Branch angleFigure 8 — Location of test specimens for a branch connection or a fillet weld on pipe7.3 Non-destructive testingAll non-destructive testing in accordance with 7.1 and Table 1 shall be carried out on the test pieces prior to cuttingof the test specimens. Any post-weld heat treatment that is specified shall be completed prior to non-destructivetesting.For materials that are susceptible to hydrogen induced cracking and where no post heating or no post-weld heattreatment is specified, non-destructive testing should be delayed.Depending upon joint geometry, materials and the requirements for work, the NDT shall be carried out as requiredin Table 1 in accordance with EN 970 (visual examination), EN 1435 (radiographic testing), EN 1714 (ultrasonictesting), EN 571-1 (penetrant testing) and EN 1290 (magnetic particle testing).7.4 Destructive testing7.4.1 GeneralThe extent of testing shall be as required by Table 1.7.4.2 Transverse tensile testSpecimens and testing for transverse tensile testing for butt joint shall be in accordance with EN 895.For pipes > 50 mm outside diameter, the excess weld metal shall be removed on both faces to give the testspecimen 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 metalmay be left undressed on the inside surface of the pipe.SIST EN ISO 15614-1:2004
EN ISO 15614-1:2004 (E)17The tensile strength of the test specimen shall not be less than the corresponding specified minimum value for theparent metal unless otherwise specified prior to testing.For dissimilar parent metal joints the tensile strength shall not to be less than the minimum value specified for theparent material having the lowest tensile strength.7.4.3 Bend testSpecimens and testing for bend testing for butt joints shall be in accordance with EN 910.For thicknesses < 12 mm two root and two face bend test specimens shall be tested. For thicknesses ³12 mm fourside bend specimens are recommended instead of root and face bend tests.For dissimilar metal joints or heterogeneous butt joint in plates, one root and one face longitudinal bend testspecimen may be used instead of four transverse bend tests.The diameter of the former or the inner roller shall be 4t and the bending angle shall be 180° for parent metal withelongation A ³ 20 %. For parent metal with elongation A < 20 % the following formula shall be applied:()sstAtd-´=100wheredis the diameter of the former or the inner rollertsis the thickness of the bend test specimenAis the minimum tensile elongation required by the material specificationDuring testing, the test specimens shall not reveal any one single flaw > 3 mm in any direction. Flaws appearing atthe corners of a test specimen during testing shall be ignored in the evaluation.7.4.4 Macroscopic examinationThe test specimen shall be prepared and etched in accordance with EN 1321 on one side to clearly reveal thefusion line, the HAZ and the build up of the runs.The macroscopic-examination shall include unaffected parent metal and shall be recorded by at least one macro-reproduction per procedure test.The acceptance levels shall be in accordance with 7.5.7.4.5 Impact testingTest specimens and testing for impact tests shall be in accordance with this standard for location of specimens andtemperature of testing, and with EN 875 for dimensions and testing.For weld metal, test specimen type VWT (V : Charpy V-notch - W : notch in weld metal - T : notch through thethickness) and for HAZ specimen type VHT (V : Charpy V-notch - H : notch in heat affected zone - T : notchthrough the thickness) shall be used. From each specified location, each set shall be comprised of threespecimens.Specimens with Charpy V-notch shall be used and sampled from a maximum of 2 mm below the surface of theparent metal and transverse to the weld.In the HAZ the notch shall be at 1 mm to 2 mm from the fusion line and in the weld metal the notch shall be at theweld centreline.SIST EN ISO 15614-1:2004
EN ISO 15614-1:2004 (E)18For thicknesses > 50 mm, two additional sets of specimens shall be taken, one from the weld metal and one fromthe HAZ at the mid thickness or in the root area of the weld.The absorbed energy shall be in accordance with the appropriate parent material standard unless modified by theapplication standard. The average value of the three specimens shall meet the specified requirements. For eachnotch location one individual value may be below the minimum average value specified, provided that it is not lessthan 70 % of that value.For dissimilar metal joints impact tests shall be carried out on specimens from each HAZ in each parent metal.Where multiple welding processes are qualified in a single test piece, impact test specimens shall be taken fromthe weld metal and HAZ that include each process.7.4.6 Hardness testingVickers hardness testing with a load of HV10 shall be performed in accordance with EN 1043-1. Hardnessmeasurements shall be taken in the weld, the heat affected zones and the parent metal in order to evaluate therange of hardness values across the welded joint. For material thicknesses less than or equal to 5 mm, only onerow of indentations shall be made at a depth of up to 2 mm below the upper surface of the welded joint. Formaterial thicknesses over 5
mm, two rows of indentations shall be made at a depth of up to 2 mm below the upperand lower surfaces of the of the welded joint. For double sided welds, fillet and T-butt welds, one additional row ofindentations shall be made through the root area. Examples of typical indentation patterns are shown in Figures 1a), b), e) and f) of EN 1043-1:1995 and Figures 3 and 4.For each row of indentation at least 3 individual indentations in each of the following areas:¾ the weld;¾ both heat affected zones;¾ both parent metals.For the HAZ the first indentation shall be placed as close to the fusion line as possible.The results from the hardness test shall meet the requirements given in Table 2. However requirements forGroups 6 (non heat treated), 7, 10 and 11 and any dissimilar metal joints shall be specified prior to testing.SIST EN ISO 15614-1:2004
EN ISO 15614-1:2004 (E)19Table 2 — Permitted maximum hardness values (HV 10)Steel groupsCR ISO 15608Non-heat treatedHeat treated1 a, 23803203 b4503804,53803206-3509.19.29.3350450450300350350aIf hardness tests are required.bFor steels with min ReH > 890 N/mm2 special values shall be specified.7.5 Acceptance levelsA welding procedure is qualified if the imperfections in the test piece are within the specified limits of quality level Bin EN 25817 except for imperfection types as follows: excess weld metal, excess convexity, excess throat thicknessand excessive penetration, for which level C shall apply.NOTEThe correlation between the quality levels of EN
25817 and the acceptance levels of the differe...
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