‌ISO 15614-1 2017‌ 全称是《金属材料焊接工艺规范及评定 - 焊接工艺试验 -第1部分钢、镍及镍合金的电弧焊和气焊》

INTERNATIONALSTANDARD

ISO15614-1

Secondedition

2017-06

Specificationandqualificationofweldingproceduresformetallicmaterials—Weldingproceduretest—

Part1:

Arcandgasweldingofsteelsandarcweldingofnickelandnickelalloys

Descriptifetqualificationd’unmodeopératoiredesoudagepourlesmatériauxmétalliques—Épreuvedequalificationd’unmodeopératoiredesoudage—

Partie1:Soudageàl’arcetauxgazdesaciersetsoudageàl’arcdunickeletdesalliagesdenickel

ReferencenumberISO15614-1:2017(E)

©ISO2017

ISO15614-1:2017(E)

ISO15614-1:2017(E)

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Contents Page

Foreword v

Introduction vi

Scope 1

Normativereferences 2

Termsanddefinitions 3

Preliminaryweldingprocedurespecification(pWPS) 3

Weldingproceduretest 3

Testpiece 3

General 3

Shapeanddimensionsoftestpieces 4

General 4

Buttjointinplatewithfullpenetration 4

Buttjointinpipewithfullpenetration 4

T-joint 4

Branchconnection 4

Weldingoftestpieces 4

Examinationandtesting 8

Typeandextentoftesting 8

Locationandtakingoftestspecimens 9

Non-destructivetesting 13

Destructivetesting 13

Transversetensiletest 13

Bendtest 13

Macroscopicexamination 13

Impacttesting 14

Hardnesstesting 14

Acceptancelevels 15

Re-testing 16

Rangeofqualification 16

General 16

Relatedtothemanufacturer 16

Relatedtotheparentmaterial 17

Parentmaterialgrouping 17

Materialthickness 19

Diameterofpipesandbranchconnections 21

Angleofbranchconnection 21

Commontoallweldingprocedures 22

Weldingprocesses 22

Weldingpositions 22

Typeofjoint/weld 23

Fillermaterial,manufacturer/tradename,designation 24

Fillermaterialsize 24

Typeofcurrent 25

Heatinput(arcenergy) 25

Preheattemperature 25

Interpasstemperature 25

Post-heatingforhydrogenrelease 26

Heat-treatment 26

Specifictoprocesses 26

Submergedarcwelding(process12) 26

Gas-shieldedmetalarcwelding(process13) 27

Gas-shieldedarcweldingwithnon-consumableelectrode(process14) 29

Plasmaarcwelding(process15) 29

Oxy-acetylenewelding(process311) 29

Backinggas 29

Weldingprocedurequalificationrecord(WPQR) 29

AnnexA(normative)Fillermaterial,designation 31

AnnexB(informative)Weldingprocedurequalificationrecordform(WPQR) 33

Bibliography 38

Foreword

ISO(theInternationalOrganizationforStandardization)isaworldwidefederationofnationalstandardsbodies(ISOmemberbodies).TheworkofpreparingInternationalStandardsisnormallycarriedoutthroughISOtechnicalcommittees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeenestablishedhastherighttoberepresentedonthatcommittee.Internationalorganizations,governmentalandnon-governmental,inliaisonwithISO,alsotakepartinthework.ISOcollaboratescloselywiththeInternationalElectrotechnicalCommission(IEC)onallmattersofelectrotechnicalstandardization.

TheproceduresusedtodevelopthisdocumentandthoseintendedforitsfurthermaintenancearedescribedintheISO/IECDirectives,Part1.InparticularthedifferentapprovalcriterianeededforthedifferenttypesofISOdocumentsshouldbenoted.ThisdocumentwasdraftedinaccordancewiththeeditorialrulesoftheISO/IECDirectives,Part2(see

/directives

).

Attentionisdrawntothepossibilitythatsomeoftheelementsofthisdocumentmaybethesubjectofpatentrights.ISOshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights.DetailsofanypatentrightsidentifiedduringthedevelopmentofthedocumentwillbeintheIntroductionand/orontheISOlistofpatentdeclarationsreceived(see

/patents

).

Anytradenameusedinthisdocumentisinformationgivenfortheconvenienceofusersanddoesnot

constituteanendorsement.

Foranexplanationonthevoluntarynatureofstandards,themeaningofISOspecifictermsandexpressionsrelatedtoconformityassessment,aswellasinformationaboutISO’sadherencetotheWorldTradeOrganization(WTO)principlesintheTechnicalBarrierstoTrade(TBT)seethefollowingURL:

/iso/foreword.html

.

ThisdocumentwaspreparedbyTechnicalCommitteeISO/TC44,Weldingandalliedprocesses,SubcommitteeSC10,Qualitymanagementinthefieldofwelding.

Thissecondeditioncancelsandreplacesthefirstedition(ISO15614-1:2004),whichhasbeentechnicallyrevised.ItalsoincorporatestheAmendmentsISO15614-1:2004/Amd1:2008andISO15614-1:2004/Amd2:2012andtheTechnicalCorrigendumISO15614-1:2004/Cor.1:2005.

AlistofallpartsintheISO15614seriescanbefoundontheISOwebsite.

RequestsforofficialinterpretationsofanyaspectofthisdocumentshouldbedirectedtotheSecretariatofISO/TC44/SC10viayournationalstandardsbody.Acompletelistingofthesebodiescanbefoundat

.

Introduction

Allnewweldingproceduretestsaretobecarriedoutinaccordancewiththisdocumentfromthedateofitsissue.However,thisdocumentdoesnotinvalidatepreviousweldingproceduretestsmadetoformernationalstandardsorspecificationsorpreviousissuesofthisdocument.

Twolevelsofweldingproceduretestsaregiveninordertopermitapplicationtoawiderangeofwelded

fabrication.Theyaredesignatedbylevels1and2.

Level1isbasedonrequirementsofASMESectionIXandlevel2isbasedonthepreviousissuesofthisdocument.

INTERNATIONALSTANDARD

ISO15614-1:2017(E)

ISO15614-1:2017(E)

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Specificationandqualificationofweldingproceduresformetallicmaterials—Weldingproceduretest—

Part1:

Arcandgasweldingofsteelsandarcweldingofnickelandnickelalloys

Scope

Thisdocumentspecifieshowapreliminaryweldingprocedurespecificationisqualifiedbywelding

proceduretests.

Thisdocumentappliestoproductionwelding,repairweldingandbuild-upwelding.

Thisdocumentdefinestheconditionsfortheexecutionofweldingproceduretestsandtherangeofqualificationforweldingproceduresforallpracticalweldingoperationswithinthequalificationofthisdocument.

Theprimarypurposeofweldingprocedurequalificationistodemonstratethatthejoiningprocessproposedforconstructioniscapableofproducingjointshavingtherequiredmechanicalpropertiesfortheintendedapplication.

Twolevelsofweldingproceduretestsaregiveninordertopermitapplicationtoawiderangeofweldedfabrication.Theyaredesignatedbylevels1and2.Inlevel2,theextentoftestingisgreaterandtherangesofqualificationaremorerestrictivethaninlevel1.

Proceduretestscarriedouttolevel2automaticallyqualifyforlevel1requirements,butnotvice-versa.Whennolevelisspecifiedinacontractorapplicationstandard,alltherequirementsoflevel2apply.

Thisdocumentappliestothearcandgasweldingofsteelsinallproductformsandthearcweldingof

nickelandnickelalloysinallproductforms.

ArcandgasweldingarecoveredbythefollowingprocessesinaccordancewithISO4063.

111—manualmetalarcwelding(metal-arcweldingwithcoveredelectrode);114—self-shieldedtubular-coredarcwelding;

12—submergedarcwelding;

13—gas-shieldedmetalarcwelding;

14—gas-shieldedarcweldingwithnon-consumableelectrode;

15—plasmaarcwelding;

311—oxy-acetylenewelding.

Theprinciplesofthisdocumentmaybeappliedtootherfusionweldingprocesses.

NOTE Aformerprocessnumberdoesnotrequireanewqualificationtestaccordingtothisdocument.

Specificationandqualificationofweldingproceduresthatweremadeinaccordancewithpreviouseditionsofthisdocumentmaybeusedforanyapplicationforwhichthecurrenteditionisspecified.Inthiscase,therangesofqualificationofpreviouseditionsremainapplicable.

ItisalsopossibletocreateanewWPQR(weldingprocedurequalificationrecord)rangeofqualificationaccordingtothiseditionbasedontheexistingqualifiedWPQR,providedthetechnicalintentofthetestingrequirementsofthisdocumenthasbeensatisfied.Whereadditionaltestshavetobecarriedouttomakethequalificationtechnicallyequivalent,itisonlynecessarytoperformtheadditionaltestonatestpiece.

Normativereferences

Thefollowingdocumentsarereferredtointhetextinsuchawaythatsomeoralloftheircontentconstitutesrequirementsofthisdocument.Fordatedreferences,onlytheeditioncitedapplies.Forundatedreferences,thelatesteditionofthereferenceddocument(includinganyamendments)applies.

ISO148-1,Metallicmaterials—Charpypendulumimpacttest—Part1:Testmethod

ISO3452-1,Non-destructivetesting—Penetranttesting—Part1:Generalprinciples

ISO4063,Weldingandalliedprocesses—Nomenclatureofprocessesandreferencenumbers

ISO4136,Destructivetestsonweldsinmetallicmaterials—Transversetensiletest

ISO5173,Destructivetestsonweldsinmetallicmaterials—Bendtests

ISO5817,Welding—Fusion-weldedjointsinsteel,nickel,titaniumandtheiralloys(beamweldingexcluded)—Qualitylevelsforimperfections

ISO6520-1,Weldingandalliedprocesses—Classificationofgeometricimperfectionsinmetallicmaterials—Part1:Fusionwelding

ISO6947,Weldingandalliedprocesses—Weldingpositions

ISO9015-1,Destructivetestsonweldsinmetallicmaterials—Hardnesstesting—Part1:Hardnesstestonarcweldedjoints

ISO9016,Destructivetestsonweldsinmetallicmaterials—Impacttests—Testspecimenlocation,notchorientationandexamination

ISO14175,Weldingconsumables—Gasesandgasmixturesforfusionweldingandalliedprocesses

ISO15609-1,Specificationandqualificationofweldingproceduresformetallicmaterials—Weldingprocedurespecification—Part1:Arcwelding

ISO15609-2,Specificationandqualificationofweldingproceduresformetallicmaterials—Weldingprocedurespecification—Part2:Gaswelding

ISO15613,Specificationandqualificationofweldingproceduresformetallicmaterials—Qualificationbasedonpre-productionweldingtest

ISO17636-1,Non-destructivetestingofwelds—Radiographictesting—Part1:X-andgamma-raytechniqueswithfilm

ISO17636-2,Non-destructivetestingofwelds—Radiographictesting—Part2:X-andgamma-raytechniqueswithdigitaldetectors

ISO17637,Non-destructivetestingofwelds—Visualtestingoffusion-weldedjoints

ISO17638,Non-destructivetestingofwelds—Magneticparticletesting

ISO17639,Destructivetestsonweldsinmetallicmaterials—Macroscopicandmicroscopicexaminationofwelds

ISO17640,Non-destructivetestingofwelds—Ultrasonictesting—Techniques,testinglevels,andassessment

ISO15614-1:2017(E)

ISO15614-1:2017(E)

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ISO/TR15608,Welding—Guidelinesforametallicmaterialsgroupingsystem

ISO/TR17671-1,Welding—Recommendationsforweldingofmetallicmaterials—Part1:Generalguidanceforarcwelding

ISO/TR18491,Weldingandalliedprocesses—Guidelinesformeasurementofweldingenergies

ISO/TR20172,Welding—Groupingsystemsformaterials—EuropeanmaterialsISO/TR20173,Welding—Groupingsystemsformaterials—AmericanmaterialsISO/TR20174,Welding—Groupingsystemsformaterials—JapanesematerialsISO/TR25901(allparts),Weldingandalliedprocesses—Vocabulary

Termsanddefinitions

Forthepurposesofthisdocument,thetermsanddefinitionsgiveninISO/TR25901(allparts)andthefollowingapply.

ISOandIECmaintainterminologicaldatabasesforuseinstandardizationatthefollowingaddresses:

ISOOnlinebrowsingplatform:availableat

/obp

IECElectropedia:availableat

/

3.1

runoutlength

lengthofarunproducedbythemeltingofacoveredelectrode

Note1toentry:SeeISO/TR17671-2.

3.2

build-upwelding

additionofweldmetaltoobtainorrestorerequireddimensions

Preliminaryweldingprocedurespecification(pWPS)

ThepreliminaryweldingprocedurespecificationshallbepreparedinaccordancewithISO15609-1or

ISO15609-2.

Weldingproceduretest

Theweldingandtestingoftestpiecesshallbeinaccordancewith

Clauses6

and

7

.

Thewelderorweldingoperatorwhoundertakestheweldingproceduretestsatisfactorilyinaccordancewiththisdocumentisqualifiedaccordingtotherelevantnational/internationalstandardbeingapplied,providedthattherelevanttestingrequirementsofthatstandardaremet.

Testpiece

General

Theweldedjointtowhichtheweldingprocedurewillrelateinproductionshallberepresentedbymakingastandardtestpieceorpieces,asspecifiedin

6.2

.

Ifrequiredbytheapplicationstandard,thedirectionofplaterollingshallbemarkedonthetestpiecewhenimpacttestsarerequiredtobetakenintheHeatAffectedZone(HAZ)andshallbementionedintheimpacttestreport.

Forlevel1:Anybuttjointtestqualifiesalljointconfigurations.

Forlevel2:Wherethejointrequirementsand/ordimensionofthetestpiecearenotcoveredbythestandardtestpiecesasshowninthisdocument,theuseofISO15613shallberequired.

Shapeanddimensionsoftestpieces

General

Thelengthornumberoftestpiecesshallbesufficienttoallowallrequiredteststobecarriedout.

Additionaltestpieces,orlongertestpiecesthantheminimumsize,maybepreparedinordertoallowforextratestingand/orforre-testingspecimens(see

7.6

).

Foralltestpiecesexceptbranchconnections(see

Figure4

)andT-joints(T-buttweldorfilletweld;see

Figure3

),thematerialthickness,t,andthediameter,D,shallbethesameforbothplatesandpipesontherequiredlengthofthetestpiecetobewelded.

Thethicknessand/orpipeoutsidediameterofthetestpiecesshallbeselectedinaccordancewith

8.3.2

to

8.3.3

.

Buttjointinplatewithfullpenetration

Thetestpieceshallbepreparedinaccordancewith

Figure1

.

Buttjointinpipewithfullpenetration

Thetestpieceshallbepreparedinaccordancewith

Figure2

.

NOTETheword“pipe”,aloneorincombination,isusedtomean“pipe”,“tube”or“hollowsection”exceptsquareorrectangularhollowsection.

T-joint

Thetestpieceshallbepreparedinaccordancewith

Figure3

.Thistestpieceappliestofullypenetratedbuttweldsorfilletwelds.

Branchconnection

Forlevel1:Nospecifictestpiecerequired.

Forlevel2:Thetestpieceshallbepreparedinaccordancewith

Figure4

.Theangleαistheminimumoneusedinproduction.Thistestpieceappliestofullypenetratedjoints(set-on,set-inorset-throughjoint)andforfilletwelds.

Weldingoftestpieces

PreparationandweldingoftestpiecesshallbecarriedoutinaccordancewiththepWPS,whichtheyshallrepresent.WeldingpositionsandlimitationsfortheangleofslopeandrotationofthetestpieceshallbeinaccordancewithISO6947.Iftackweldsaretobefusedintothefinaljoint,theyshallbeincludedinthetestpiece.

Theweldingandthetestingofthetestpieceshallbeverifiedbytheexaminerorexaminingbody.

Key

1

jointpreparationandfit-upasdetailedinthepreliminaryweldingprocedurespecification(pWPS)

a

minimumdimension150mm

b

minimumdimension350mm

t

materialthickness

Figure1—Testpieceforabuttjointinplatewithfullpenetration

Key

1

jointpreparationandfit-upasdetailedinthepreliminaryweldingprocedurespecification(pWPS)

a

minimumdimension150mm

D

outsidepipediameter

t

materialthickness

Figure2—Testpieceforabuttjointinpipewithfullpenetration

Key

1

jointpreparationandfit-upasdetailedinthepreliminaryweldingprocedurespecification(pWPS)

a

minimumdimension150mm

b

minimumdimension350mm

t1,t2

materialthickness

Figure3—TestpieceforaT-joint

Key

1

jointpreparationandfit-upasdetailedinthepreliminaryweldingprocedurespecification(pWPS)

α

branchangle

a

minimumdimension150mm

D1

outsidediameterofmainpipe

D2

outsidediameterofbranchpipe

t1

mainpipematerialthickness

t2

branchpipematerialthickness

Figure4—Testpieceforabranchconnection

Examinationandtesting

Typeandextentoftesting

Forlevel1:Typeandtheextentoftestingshallbe

inaccordancewiththerequirementsof

Table1

.

Ifimpacttesting,hardnesstestingornon-destruc-tivetesting(NDT)isrequiredbyanapplicationstandardorspecification,theyshallbecarriedoutandassessedinaccordancewiththerequirementsoflevel2,unlessotherwisespecifiedbytheappli-cationstandardorspecification.

Forlevel2:Typeandtheextentoftestingshallbe

inaccordancewiththerequirementsof

Table2

.

Anapplicationstandardmayspecifyadditionaltests,e.g.:

longitudinalweldtensiletest;

allweldmetalbendtest;

corrosiontest;

chemicalanalysis;

microscopicexamination;

deltaferriteexamination;

hardnesstest;

cruciformtest;

impacttest;

non-destructivetesting(NDT).

NOTESpecificservice,materialormanufacturingconditionsmayrequiremorecomprehensivetestingthanisspecifiedbythisdocumentinordertogainmoreinformationandtoavoidrepeatingtheweldingproceduretestatalaterdatejusttoobtainadditionaltestdata.

Table1—Forlevel1:Examinationandtestingofthetestpieces

Testpiece

Typeoftest

Extentoftesting

Footnote

Buttjointwithfullpenetration—

Figure1

and

Figure2

Visualtesting

TransversetensiletestTransversebendtest

100%

2specimens

4specimens

a

Filletwelds—

Figure3

Visualtesting

Macroscopicexamination

100%

2specimens

b

Forbendtests,see

7.4.2

.

Wheremechanicalpropertiesarerequiredbyanapplicationstandard,itshallbetestedaccordingly.Ifanadditionaltestpieceisneeded,thedimensionsshouldbesufficientenoughtoallowtestingofthemechanicalproperties.Forthisadditionaltestpiece,theweldingparameterrange,parentmaterialgroup,fillermetalandheattreatmentarerequiredtobethesame.

Table2—Forlevel2:Examinationandtestingofthetestpieces

Testpiece

Typeoftest

Extentoftesting

Footnote

Buttjointwithfullpenetration—

Figure1

and

Figure2

VisualtestingRadiographicorultrasonictesting

SurfacecrackdetectionTransversetensiletestTransversebendtestImpacttest

Hardnesstest

Macroscopicexamination

100%

100%

100%

2specimens

4specimens

2setsrequired

1specimen

—

ab

—

cde

—

T-jointwithfullpenetration—

Figure3

Branchconnectionwithfullpenetration—

Figure4

f

VisualtestingSurfacecrackdetection

UltrasonicorradiographictestingHardnesstest

Macroscopicexamination

100%

100%

100%

required2specimens

ba,ge

Filletweld—

Figure3

and

Figure4

f

VisualtestingSurfacecrackdetection

Hardnesstest

Macroscopicexamination

100%

100%

required2specimens

be

Ultrasonictestingshallnotbeusedfort<8mmandnotformaterialgroups8,10,41to48.

Accessibleweldsurfaces:penetranttestingormagneticparticletesting.Fornon-magneticmaterials,penetranttesting.

Forbendtests,see

7.4.2

.

OnesetintheweldmetalandonesetintheHAZformaterials≥12mmthickandhavingspecifiedimpactpropertiesrequiredbytechnicaldeliveryconditionsand/orifappropriateaccordingtotheserviceconditions.Applicationstandardsmayrequireimpacttestingbelow12mmthick.Thetestingtemperatureshallbechosenbythemanufacturerwithregardtotheapplicationorapplicationstandards.Foradditionaltests,see

7.4.4

.

Notrequiredforparentmetals:sub-group1.1,groups8and41to48anddissimilarjointsbetweenthesegroups,exceptfordissimilarjointsbetweensub-group1.1andgroup8.

Wheremechanicalpropertiesarerequiredbyanapplicationstandard,itshallbetestedaccordingly.Ifanadditionaltestpieceisneeded,thedimensionsshouldbesufficientenoughtoallowtestingofthemechanicalproperties.Forthisadditionaltestpiece,theweldingparameterrange,parentmaterialgroup,fillermetalandheattreatmentarerequiredtobethesame.

Foroutsidediameter≤50mm,noultrasonictestingisrequired,butradiographictestingisrequiredprovidedthatthejointconfigurationwillprovidevalidresults.Foroutsidediameter>50mmandwhereitisnottechnicallypossibletocarryoutultrasonictesting,aradiographictestingshallbecarriedoutprovidedthatthejointconfigurationwillprovidevalidresults.

Locationandtakingoftestspecimens

Testspecimensshallbetakeninaccordancewith

Figures5

,

6

,

7

and

8

.Forlocationofhardnessandimpactspecimens,

8.4.2

shallbeconsidered.

ItisacceptabletotakethetestspecimensfromlocationsavoidingareaswhichhaveimperfectionswithintheacceptancelimitsfortheNDTmethod(s)used.

Dimensionsinmillimetres

Key

1

discard25mm

2

weldingdirection

3

areafor:

—1tensiletestspecimen

—bendtestspecimens

4

areafor:

—impactandadditionaltestspecimensifrequired

5

areafor:

—1tensiletestspecimen

—bendtestspecimens

6

areafor:

—1macrotestspecimen

—1hardnesstestspecimen

NOTENottoscale.

Figure5—Locationoftestspecimensforabuttjointinplate

Key

1

endofweld

2

areafor:

—1tensiletestspecimen

—bendtestspecimens

3

areafor:

—impactandadditionaltestspecimensifrequired

4

areafor:

—1tensiletestspecimen

—bendtestspecimens

5

startofweld;areafor:

—1macrotestspecimen

—1hardnesstestspecimen(takenfromthestartofweld)

6

welddirection

NOTENottoscale.

Figure6—Locationoftestspecimensforabuttjointinpipe

Dimensionsinmillimetres

Key

1

discard25mm

2

macrotestspecimen

3

macroandhardnesstestspecimen

4

weldingdirection

Figure7—LocationoftestspecimensinaT-joint

Key

A

macroandhardnesstestspecimentobetaken

B

macrotestspecimentobetaken

α

branchangle

Figure8—Locationoftestspecimensforabranchconnectiononpipe

Non-destructivetesting

Allnon-destructivetestinginaccordancewith

7.1

shallbecarriedoutandacceptedonthetestpiecespriortocuttingofthetestspecimens.Thediscard(see

Figure5

and

Figure7

)shallnotbeconsideredforNDT.Anypost-weldheattreatment(PWHT)thatisspecifiedshallbecompletedpriortonon-destructivetesting.

Formaterialsthataresusceptibletohydrogeninducedcrackingandwherenopost-heatingornoPWHTisspecified,non-destructivetestingshallbedelayed.

Dependinguponjointgeometry,materialsandtherequirementsforwork,theNDTshallbecarriedoutasrequiredin

Table1

and

Table2

inaccordancewithISO17637(visualtesting),ISO17636-1orISO17636-2(radiographictesting),ISO17640(ultrasonictesting),ISO3452-1(penetranttesting)andISO17638(magneticparticletesting).Acceptancelevelsshallbeinaccordancewith

7.5

.

Destructivetesting

Transversetensiletest

SpecimensandtestingfortransversetensiletestingforbuttjointshallbeinaccordancewithISO4136.Thetestshallrepresentthewholethicknessexceptasnecessarytoobtainparallelsidesonthespecimens.Tensiletestingshallensureallweldingprocessesusedandtheassociatedessentialvariablesaretested.

NOTEItisnotessentialtooverlapthespecimensasidentifiedinISO4136.

Forpipes>50mmoutsidediameter,theexcessweldmetalshallberemovedonbothfacestogivethe

testspecimenathicknessequaltothewallthicknessofthepipe.

Forpipes≤50mmoutsidediameter,forwhichthetransversetensiletestisperformedonthefullpipe,theexcessweldmetalmaybeleftundressedontheinsidesurfaceofthepipe.

Thetensilestrengthofthetestspecimenshallnotbelessthanthecorrespondingspecifiedminimumvaluefortheparentmetalunlessotherwisespecifiedpriortotesting.

Fordissimilarparentmetaljoints,thetensilestrengthshallnotbelessthantheminimumvalue

specifiedfortheparentmaterialhavingthelowesttensilestrength.

Bendtest

SpecimensandtestingforbendtestingforbuttjointsshallbeinaccordancewithISO5173:2009.

Forthicknesses<12mm,tworootandtwofacebendtestspecimensshallbetested.Forthicknesses

≥12mm,foursidebendspecimensmaybeusedinsteadofrootandfacebendtests.

Fordissimilarmetaljointsorheterogeneousbuttjointsinplates,onerootandonefacelongitudinal

bendtestspecimenmaybeusedinsteadoffourtransversebendtests.

Duringtesting,thetestspecimensshallnotrevealanyimperfection>3mminanydirection.Imperfectionsappearingatthecornersofatestspecimenduringtestingshallbeignoredintheevaluation.

Macroscopicexamination

ThetestspecimenshallbepreparedandetchedinaccordancewithISO17639ononesidetoclearly

revealthefusionline,theHAZandthebuild-upoftheruns.

Thetestspecimenshallincludeunaffectedparentmetalandshallberecordedbyatleastone

photographofmacrocross-sectionperproceduretest.

Theacceptancelevelsshallbeinaccordancewith

7.5

.

Impacttesting

Testspecimensandtestingforimpacttestsshallbeinaccordancewiththisdocumentforlocationofspecimensandtemperatureoftesting,andwithISO9016fordimensionsandtesting.Thestrikerradiusof2mmaccordingtoISO148-1shallbeused,unlessotherwisespecified.

Forweldmetal,testspecimentypeVWT(V:CharpyV-notch-W:notchinweldmetal-T:notchthroughthethickness)andforHAZspecimentypeVHT(V:CharpyV-notch-H:notchinheataffectedzone-T:notchthroughthethickness)shallbeused.Fromeachspecifiedlocation,eachsetshallbecomprisedofthreespecimens.

Specimensshallbesampledfromamaximumof2mmbelowtheuppersurfaceoftheparentmetalandtransversetotheweld.

IntheHAZ,themid-pointofthenotchshallbeat1mmto2mmfromthefusionline.Intheweldmetal,themid-pointofthenotchshallbeattheweldcentreline.

Forbuttjointswherethematerialthicknessist>50mm,twoadditionalsetsofspecimensshallbe

takenfromtherootarea,onesettakenintheweldandonesettakenfromtheHAZ.

Forjointsbetweenmaterialswiththesamematerialspecificationan