ISO15614-1:2004+A2:2012,ISO15614-1:2017,"Reasonforchangeandmain

consequences"

Clause/table(ISO15614:2017):1Introduction,,

Onequalificationproceduredefined,"Twoweldingproceduretestlevels:

Level1:basedonASMEIX

Level2:basedonpreviousISO15614-1","TwolevelsofweldingproceduretestsarespecifiedinordertomakeISO15614-1applicabletoawiderrangeofapplications

Intheabsenceofspecificrequirements,Level2applies

ExistingWPQRsandqualificationrangesremainvalid

NewWPQRsaccordingtoISO15614-1:2017canbeissued,basedonexistingWPQRsprovidedthetechnicalintentofthetestingrequirementsofISO15614-1:2017hasbeensatisfied"

Annexes,,

RelationshipwiththePressureEquipmentDirective(PED)inAnnexZA,RelationshipwiththePressureEquipmentDirective(PED)inAnnexZA.Level2onlyispermittedforcompliancewiththePED.,"Level1doesnotprovidepresumptionofconformitywiththeEssentialSafetyRequirementsofthePED.

ISO15614:2017hasyettobepublishedintheofficialjournaloftheEUasharmonisedstandardtothePED.

Intheabsenceofspecificrequirements,theauthorsrecommendtoapplyLevel2,whencompliancewiththePEDisrequired."

Destructiveandnon-destructivetesting,,

Table2Examinationandtestingrequirements,,

SeeTable1,"TestrequirementsforLevel

2inTable2.Theseareessentiallyidenticaltothepreviousedition(noteshavebeenrevisedforclarity).

Noted-'neednotbelowerthantheparentmetalspecification'hasbeendeleted'.",TestrequirementsinpreviousandinthecurrentversionofISO15614(Level2)aremorestringentthanLevel1.

Figure5Locationoftestspecimensinbuttjointsinplate,,

"LocationoftestspecimensinFigure5(weldingdirectiontopbottomofpage,seebelow).","Theweldingdirectionisnowfromthebottomtothetopofpage,butthespecimenlocationisthesame.So,thelocationoftestspecimenwithregardtothestartandendoftheweldhaschanged(seebelow).","Macroandhardnesstestspecimenisnownearthestartoftheweld.ThiswaslocatedneartheendoftheweldinthepreviouseditionofISO15614-1.Duetotheheatbuildingupduringwelding,hardnessvaluesmaybehigheratthestartoftheweld,comparedtotheendoftheweld,forthesameweldingparameters.Thiseffecthasnotbeenquantified.So,thestartoftheweldrepresenta‘worstcase’forhardness(iehighesthardness).ProcedurequalificationstothecurrentISO15614-1mayresultinhigherhardnessvalues.Closemonitoringoftheheatingcycleisrecommended(preheat,heatinput),especiallywhenborderlinehardnessvaluesareexpected"

"=DISPIMG(""ID_F8F9549ACD3B485DAB74373B37D1E5B9"",1)","=DISPIMG(""ID_07922FB9CB0B4E16ABA2B342DCE1FCDB"",1)",

"Key

1.Discard25mm

2.WeldingDirection

3.Areafor:

1tensiletestspecimen;

bendtestspecimens.

4.Areafor:

impactandadditionaltest

specimensifrequired

5.Areafor:

1tensiletestspecimen;","Key

1.Discard25mm

2.WeldingDirection

3.Areafor:

1tensiletestspecimen;

bendtestspecimens.

4.Areafor:

impactandadditionaltest

specimensifrequired

5.Areafor:

1tensiletestspecimen;",

"bendtestspecimens.

6.Areafor:

1macrotestspecimen;

1hardnesstestspecimen.

NOTE:nottoscale.","bendtestspecimens.

6.Areafor:

1macrotestspecimen;

1hardnesstestspecimen.

NOTE:nottoscale.",

Figure6Locationoftestspecimensinbuttjointsinpipe,,

"Noweldingdirectionshown.So,specimenlocationsaroundthepipecircumferencearethe

same,regardlessofthe

weldingprogression(verticalupordown)","Figure6splitintotwodiagramsforvertical-upandvertical-downprogressions,withspecimensindifferentlocationsaroundthepipecircumference.

NOTE:fortheverticaldownprogression(righthandside)thelocationofarea5(startofweld,macroandhardness)inthediagramfortheverticaldownprogressionseemstoindicatethatthestartofweldshouldbeat3o’clockposition.Also,thelocationofarea1(endofweld),seemstoindicatethattheweldendsatthe12o’clockposition.ItistheopinionoftheauthorsthatthisisanerrorandthataKeyspecificfortheverticaldownprogressiondiagram

shouldbeadded.","Takesintoaccounttheeffectsofweldingprogressiononthepropertiesofdifferentareasaroundtheweld.Forexample:Whenweldinginthevertical-upposition,theworstcaseareaforhardness(lowestheatinput,highesthardness),isexpectedtobeinthe6o’clockposition.Whenweldinginthevertical-downposition,theworstcaseareaforhardness,isexpectedtobeinthe3o’clockposition.Specimenshallbeextractedfromdifferentlocations,dependingontheweldingprogression"

Table3Permittedmaximumhardnessvalues,,

"Formaterialgroups4,5(heattreated):Max320HV10","Formaterialgroups4,5(heattreated):Max350HV10.

Newnotec:forcertainmaterialsinGroups4,5,highervaluesmaybeaccepted,ifspecifiedbeforetheweldingproceduretest.","Group4includesLowvanadiumalloyedCrMo-(Ni)steelswithMo≤0,7%andV≤0,1%(eg0.5Mosteel)Group5Cr-MosteelsfreeofvanadiumwithC≤0,35%(eg1.25Cr-0.5Mo,2.25Cr-1Mo,grade91)

TheISOcommitteeagreedthatthepermittedhardnesslevelsforGroups4,5inthepreviouseditionofISO15614-1weretoostringentandtheconsensuswasthatGroups4,5(heattreated)mayhaveahigherhardnesslevel,withoutsignificantlyincreasingtheriskofhydrogencracking.Footnotecwasaddedbecauseitwasalsoconsideredthat,forthesematerials,higherlevelsmaybeacceptableprovidingthehardnesslimitwasspecifiedbeforetheweldingproceduretest.Thismaybeuseful,forexample,whenGroup4and5materialsareusedfortheirmechanicalstrength,ratherthantheirhightemperatureproperties."

7.5Acceptancelevels,,

Seeclause7.5,Table4addedtoclarifyrequirements,Acceptancecriteriahavebeenmadeclearer

Rangesofqualification,,

8.2Manufacturer,,

Qualificationvalidforotherworkshopsunderthesametechnicalandqualitycontrol,Technicalandqualitycontrolnotmentioned.Qualificationvalid“inworkshopsorsiteswhenthemanufacturerwhoperformedtheweldingproceduretestretainscompleteresponsibilityforallwelding”,"Thenewwordingclarifiesthatacompanycanapplyanothercompany’sWPQR,providedthatthecompaniesthatqualifiedtheWPQRretainscompleteresponsibilityforallwelding

Forexample:CompanyA,whocarriedouttheprocedurequalification,canpasstheWPQRtoCompanyB,providedthatCompanyAretainscompleteresponsibilityforallwelding.

CompanyAwouldtakeasignificantrisk,asitwouldberesponsibleforweldingcarriedoutbyadifferentcompany"

8.3.1Parentmaterialgrouping,,

ReferstoCRISO15608,"ReferstoISO/TR15608.

WherematerialsareassignedtogroupsbyISO/TR20172,ISO/TR20173orISO/TR20174,thoseassignmentsshallbeused.

Separatequalificationsrequiredformaterialsnotcoveredbystandardsabove","RulestoassignparentmaterialgroupingmadeclearerISO/TR20172,ISO/TR20173orISO/TR20174areveryusefuldocumentstoassigngroupstoEN,AmericanandJapanesematerials"

Table5Rangeofqualificationforsteelgroupsandsubgroups,,

Table3hasveryfewdissimilarcombinations,Table5ismuchmorecomprehensive,"Table5isnoweasiertouse,especiallyfordissimilarmetalwelds"

Table5Rangeofqualificationforsteelgroupsandsubgroup,,

"ForGroup11(mainlyASTM/ASMEmaterials),notebapplies,iesteelsinthesamesubgroupandanylowersub-groupwithinthesamegrouplowersubgroupsarequalified","ForGroup11,noteaapplies,ieequalorlowerspecifiedminimumyieldstrengthsteels

(independentofthematerialthickness)arequalified","Group11coversASTM/ASMEcarbonsteels,forwhichthespecifiedmaximumcarboncontent(upto0.30%)istypicallygreaterthanfor‘ENorISOsteels’Group11steelsrepresentaworsecaseintermsofweldability(potentiallyhighercarbon),comparedtoENorISOsteelswiththesameorlowerspecifiedyieldstrength

Thepreviousstandardwasconsideredunnecessarilyrestrictive,asGroup11materialsonlyqualifiedGroup11.

Group11materialnowcoverGroup1withthesameorlowerspecifiedminimumyieldstrength"

Table6Rangeofqualificationfornickelalloysgroupsandsubgroups,,

Table4hasveryfewdissimilarcombinations,Table6ismuchmorecomprehensive.Dissimilarcombinationsforgroups8-4Xand11-4Xintroduced,"Table6isnoweasiertouse,especiallyfordissimilarmetalwelds"

Table7Materialandwelddepositthickness(buttwelds,,

"Table5hasthe

samerangesforwelddeposit

thicknessmaterial

thickness","Separatequalificationrangesforlevels1and2Table7essentiallysimilartopreviousTable5,except:

Depositedweldmetalthickness(s)andmaterialthickness(t)treatedseparately

Rangesforthicknessoftestpiecehavechanged.Nominimumthicknessfordepositthickness.0.5t–2tformaterialthickness<3.Whens(test)>20,newrulesfors(max).t(test)ranges20-40,40-100,100-150,>150mm.S(max)=1.33s(test)ift≥150",WeldmetalthicknessandmaterialthicknessaretreatedseparatelytoimproveclarityUsersshouldbeawareofthenewthicknessoftestpiecerangesandthenewqualificationranges.

Table8Materialandthroatthicknessforfilletwelds,,

"Table6:

3<t<30mmrange=0.5t(3min)–2t

t≥30:singlerunthroat–norange(eachthroatdepthtobequalifiedseparately)","Table8:

3<t<30mmrange=3-2t

Singlerunthroat

–rangeis0.75a

–1.5a","As3mmistheminimummaterialthicknessthenchangedfrom0.5t(3min)–2tto3-2t

Thestandardcommitteeconsideredthatthereshouldbearangeofqualificationforthethroatthicknessandnotrestricted,aspreviously,tothethroatthicknessusedinthetestpiece."

Table9Pipeandbranchconnectionsdiameter,,

"Table7:

ForD≤25rangeis0.5D–2D

ForD>25rangeis≥0.5D(25min)",Rangeis≥0.5Dforalldiameters,"Thecommitteeconsideredthepreviousrangestobetoorestrictive,soarangeof≥0.5Dforalldiameterswasagreed."

8.4.1Weldingprocesses,,

"Formulti-runwelds,norequirementtotestweldmetaldepositedfromeachweldingprocess","Whenthetestpieceisweldedwithmorethanoneweldingprocess;Theprocedureisvalidonlyforthesequenceofprocessesusedonthetestpiece.Testspecimensshallincludedepositedmaterialfrom

eachweldingprocessused.

Addition:“backrunispermittedusingoneofthewelding

processesusedinthequalification.”","Formulti-processwelds,thetestspecimenmustnowincludedepositedmetalfromeachweldingprocess.Thiswasnotexplicitlyrequiredinthepreviousedition.

Formulti-processqualification(egTIG+MMA),eitheroftheprocessescanbeusedtodepositabackingrun"

8.4.2Weldingpositions,,

8.4.2,"Thewordinghasbeenrevised,

theprinciplesarethesameapartfrom;

twotestpiecesarerequiredexceptinthecaseofwhenafixedpipeisusedforthequalification.

MoreexamplesofhighandlowheatinputpositionsprovidedinaNOTE","Therehasbeenmuchdiscussionontheclauseandthewordingwasrevisedtomakeitclearer.Theprinciplesarelargelythesamebut;

Incaseoffixedpipe,itisnotnecessarytoweldtwotestpiecessince,forexample,thehardnesscanbetakenfromtheoverheadposition(PE)andtheimpactfromthehorizontal(PC)position-seeFig6

TheUKspecificallyaskedforthefollowingtobeincluded'Verticaldownwelding(weldingpositionsPG,PJandJ-L045)shallbequalifiedbyaspecifictest'whichwasagreed.TheNotewasaddedtohelptheusertounderstandwhicharethehighestandlowestheatinputpositions.

Theuseof‘a(chǎn)nd’inthenote,forexample‘PFandPA’forhighheatinputposition,maybemisleading.Usersmaybelievethattwotestpieces,oneinPAandoneinPFposition,arerequiredtotestthehighheatinput.Theintentofthisnoteisthatonlyonepositionperheatinputlevelisrequired.

IMPORTANT:notesareincludedinstandardstogiveexamplesandhelptheusers.Anotecannotincluderequirements.Thepositionsspecifiedinthenoteareforexampleonly.Theusermayapplypositionsotherthan

thoseindicatedinthenote"

8.4.3Typeofweld/joint,,

8.4.3,"Newclauses:

Weldmadefrombothsidesqualifiesweldsmadefromonesidewithbacking

Build-upqualifiedbybuttweld

Butteringshallbeperformedbyaseparatetestpieceincombinationwiththebuttweld(toallowmechanicaltesting).Modifiedclause(newtextinItalic):

Whenimpactorhardnessrequirementsapply,itisnotpermittedtochangeamultirundepositintoasinglerundeposit(orsinglerunoneachside)orviceversaforagivenprocess","(i)and(k)wereagreedbythecommitteeandcoverconditionsthatwerenotexplicitlyaddressedinthepreviousedition

(j):achangefromsingletomulti-run,andvice-versa,isexpectedtoaffecthardnessandtoughnessintheHAZandweldmetal.Ifhardnessandtoughnessarenottobetested,thischangeshouldnotapply.

(h)isnotpermittedwhenthermalgouging(arcair,plasma)isusedtoremovetheweldroot,becausethisisathermalprocessanditaffectsthemechanicalpropertiesofthejoint."

8.4.4Fillermaterials,,

"Coveredbyseparateclauses8.4.4(designation)and8.4.5(make)

8.4.5:fillermetalsrestrictedtothespecificmakefor‘fluxed’processes111(MMA),114(self-shielded),12(SAW),136(FCAWintergas)and132(FCAWactivegas)","Coveredbyoneclause(8.4.4)

Process137isreplacedbyprocess132

Restrictionsonfillermetalsfor‘fluxed’processes(manualmetalarc,SAW,FCAW)ifimpacttestingisrequiredattemperatureslessthan-20°C","Process137hasbeenreplacedbyprocess132inthelatestversionofISO4063

Therequirementfortestingat-20°CisonlymandatoryifrequiredbytheApplicationStandard"

8.4.7Heatinput(arcenergy),,

"8.4.8:

heatinputonlytoberecorded

±25%qualifiedrange,dependingontestingrequirements

HeatinputcalculationaccordingtoEN1011-1","8.4.7:

Usercanuseeitherheatinputorarcenergyforweldingcontrol,tobecalculated

inaccordancewithISO/TR18491

thecalculation(eitherheat

inputorarcenergy)shallbedocumented

±25%qualifiedrangestaysthesame(+25%whenthereimpactrequirementsapplyand-25%whenhardnessrequirementsapply)

Fortackweldingheatinputneednotbeverifiedbutadjustableparameters(amps/volts)shouldbechecked","ReferencetoISO/TR18491totakemodernpowersourcesintoaccount

Thetraditionalformulaforheatinput/arcenergyinEN1011-1isinadequatewhenpulsedwelding(egP-GTAWorp-GMAW)orpowersourceswithcomplexwaveformsareused(egLincolnSTT,FroniusCMT,ESABSuperpulse,KemppiWISEROOTetc)

UsingthetraditionalformulaandaveragevaluesforAandVhasbeenproventobeinaccurate.Also,averageAandVcannotbereadilydetermined,whenacomplexwaveformisapplied.

ISO/TRUsercanreportheatinputorarcenergy,tobecalculatedaccordingtoISO/TR18491

providesseparaterulestocalculateheatinput/arcenergyforwaveformcontrolledandnon-waveformcontrolledprocesses

TheseareidenticaltotherulesintroducedinASMEIXsince2010

UsershouldfamiliarisewithISO/TR18491"

8.4.8Preheattemperature,,

"8.4.9:

Theminimumqualifiedpreheattemperatureisthatrecordedinthetest(appliedatthestartofthetest)",Thepreheattemperaturecanbereducedbynomorethan50°CfromtherecordedpreheattemperatureontheWPQRotherwiserequalificationisrequiredAdecreaseinthepreheattemperatureisonlypermittedifISO/TR17671-12issatisfied,"PreheattemperaturereductionsimilartoASMEIX,whichpermitsa55°Creduction.

Areductionof50°Cispermitted,ratherthan55°C,topreventlevelfrombeinglessstringentthanASMEIX

ItispermissibletoreducethepreheattemperaturefromtherecordedpreheattemperatureontheWPQRbutbynomorethan50°CandonlyifISO/TR17671-2issatisfied

Thisdoesnotmeanthatpreheatshouldbereducedforproductionwelding.ISO/TR17671-2shouldbeappliedtodeterminetherequiredlevelofpreheatforproductionwelding.

Also,adecreaseinpreheattemperaturemaynotbepermittedbytheapplicableconstructioncode,ifany."

8.4.9Interpasstemperature,,

"8.4.10:

Upperlimitfortheinterpasstemperature(IP)isthatrecordedintest","Anincreaseinthemaximuminterpasstemperatureofmorethan50°Cshallrequirerequalification

ForGroups8,10,41-48,thereisnochange,asthemaximuminterpasstemperature(IP)isthatrecordedintheweldingproceduretest.","IPtemperatureincreasesimilartoASMEIX,whichpermitsa55°Cincrease.

Anincreaseof50°Cispermitted,ratherthan55°C,topreventlevel2frombeinglessstringentthanASMEIX

Increasenotpermittedforausteniticmaterials(groups8,41-48)andduplexstainlesssteels(group10),asthismayadverselyaffectpropertiessuchastoughness,phasebalanceandcorrosionresistance"

8.4.11Heattreatment,,

8.4.12:PWHTtemperaturerangevalidatedistheholdingtemperaturerecordedinthetest±20°C,"Nochangesfrompreviousstandardregardingtemperaturerangevalidatedandheatingratesetc.

IntroductionoffourPWHTconditionswhichwillrequireaseparateprocedurequalification

Formaterialgroups1-7,9-11thefollowingconditionsapply:

-Stressrelief(belowlowertransformationtemperature),-normalizing(aboveuppertransformationtemperature),

-normalisingfollowedbyQ&T,

-PWHTbetweenloweranduppertransformationtemperatures.

PWHTtemperaturerangevalidatedisstilltheholdingtemperaturerecordedinthetest±20°C

ForallothergroupsPWHTshallbe‘withinaspecifiedtemperaturerange’.","IntroductionoffourgroupsofPWHTinlinewithASMEIX(seeQW-407.1)

MajorchangeistheintroductionoffourtypesofPWHTforISO/TR15608materialgroups1-7,9-11"

8.5.1Submergedarcwelding,,

"8.5.1:

8.5.1.1Eachprocessvariantshallbequalifiedindependently

8.5.1.2Rangeislimitedto‘makeanddesignation’oftheflux","8.5.1(a)Eachprocess12variant(121to126)shallbequalifiedindependently.Theintroductionofprocessvariantsuchasmulti-wire,additionofhotorcoldwire,etcwillrequirerequalification

8.5.1(b)Range

islimitedtothe‘manufacturer,tradenameanddesignationoftheflux’8.5.1(c)Newclauseaddedtocovertheuseofre-crushedslag","Clauserevisedtoimproveclarityandaddresssomefrequentlyaskedquestionsfromusers(egonmulti-wire,hot/coldwireetc)

Clauseonre-crushedslagaddedinlinewithASMEIX(QW-404.36)

LimitingtherangeofqualificationtotheTradeNameusedinthetestisanadditionalrestriction.

Itshouldbenoted,whenusingre-crushedslaganewbatchorblendofcrushedslagrequiresanewqualificationtest."

8.5.2.1Gas-shieldedmetalarcwelding(Shieldinggases),,

"8.5.2:

Increaseof10%ofCO2contentpermittedforshieldinggas",MaximumpermissibledeviationfortheCO2contenthasnowbeenclarifiedasa‘relativedeviation’of±20%ofCO2fromnominalcomposition,"Thepreviouswording(shallnotexceed10%)wasunclearandnumerousenquirieswerebeingsubmitted

Forexample,ifanincreaseof10%ispermitted,doesagasmixture80%Ar20%CO2cover:Upto22%CO2,calculatedas[20+(10%of20)]

orUpto30%CO2,calculatedas(20%+10%)

AccordingtoISO15614-1:2017,fortheexampleabove,‘relativedeviationof±20%’meansthatagasmixture80%Ar20%CO2

covers:

Minimum16%CO2,calculatedas[20-(20%of20)]Maximum24%CO2,calculatedas[20+(20%of20)]"

8.5.2.3Gas-shieldedmetalarcwelding(Transfermode),,

Sprayorglobulartransfermodesqualifysprayandglobular,"NewclauseonTransferMode

8.5.2.3.1Therangeofqualificationforthevarioustransfermodesincludingthepulsedmodeegqualificationusingspray,pulsedorglobularqualifiesspray,pulsedandglobular",Rangeofqualificationnowcoversthepulsedtransfermodeandthenewerwaveformcontrolledpowersources

"Noreferenceto

waveform

controlledwelding","Newclausesonwaveformcontrolledwelding:

8.5.2.3.2Waveformcontrolledwelding:thepowersourcemanufacturerandwaveformcontrolmodeareessentialvariables

8.5.2.3.2Weldingwithpulsedmodeandwithoutwaveformcontrol:thepowersourcemanufacturerandotherpertinentinformationshallberecorded,butachangedoes

notrequirerequalification

8.5.2.3.2Nonwaveformcontrolwelding:thepowersourcemanufacturershallbe

recorded,butachangedoesnotrequirerequalification","Inpractice: