BS EN 1011-5-2003 Welding - Recommendations for welding of metallic materials - Welding of clad steel《焊接 金属材料焊接的推荐规程 覆层钢的焊接》.pdf

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1、BRITISH STANDARD BS EN 1011-5:2003 Welding Recommendations for welding of metallic materials Part 5: Welding of clad steel The European Standard EN 1011-5:2003 has the status of a British Standard ICS 25.160.10 BS EN 1011-5:2003 This British Standard was published under the authority of the Standard

2、s Policy and Strategy Committee on 2 May 2003 BSI 2 May 2003 ISBN 0 580 41755 7 National foreword This British Standard is the official English language version of EN 1011-5:2003. The UK participation in its preparation was entrusted to Technical Committee WEE/47, Miscellaneous welding standards, wh

3、ich has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the sec

4、tion entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.

5、Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor re

6、lated international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 11 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued

7、. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN10115 April2003 ICS25.160.10 Englishversion WeldingRecommendationsforweldingofmetallicmaterials Part5:Weldingofcladsteel SoudageRecommendationspourlesoudagedes matriauxmtalliquesPartie5:Souda

8、gedesaciers plaqus SchweienEmpfehlungenzumSchweienmetallischer WerkstoffeTeil5:SchweienvonplattiertenSthlen ThisEuropeanStandardwasapprovedbyCENon28February2003. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanatio

9、nalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheres

10、ponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,S

11、lovakia,Spain,Sweden,SwitzerlandandUn ited Kingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2003CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN10115:

12、2003EEN10115:2003(E) 2 Contents page Foreword. 3 1 Scope 4 2 Normativereferences . 4 3 Termsanddefinitions. 5 4 Materials. 5 4.1 Cladsteels . 5 4.2 Parentmetal . 5 4.3 Cladding. 5 5 Weldingconsumablesforcladdingdeposits. 5 6 Weldingprocedures 6 7 Fabrication. 6 8 Welding 7 8.1 Weldingfrombothsides .

13、 . 7 8.2 Singlesidewelding. 7 8.3 Generalweldingconditions . 7 8.4 Weldingprocedurespecification. 8 9 Postweldcleaning 9 10 Testing 9 11 Correctionofnonconformities . 9 AnnexA (informative) Dilutionrate. 10 Bibliography . 11EN10115:2003(E) 3 Foreword Thisdocument(EN10115:2003)hasbeenpreparedbyTechni

14、calCommitteeCEN/TC 121,“Welding“,the secretariatofwhichisheldbyDS. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbyOctober2003,andconflictingnationalstandardsshallbewithdrawnatthelatest byOctober2003. AccordingtotheCEN/CE

15、NELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark,Finland, France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal, Slovakia,Spain,Sweden,Switzerland

16、andtheUnitedKingdom.EN10115:2003(E) 4 1Scope ThisEuropeanStandardgivesgeneralrecommendationsforweldingofcladsteelsbymeansofappropriatearc weldingprocessesandelectroslagstripcladding. Itisgenerallyapplicabletoallcladsteelsandisappropriateregardlessofthetypeoffabricationinvolved,although theapplicatio

17、nstandardmayhaveadditionalrequirements.Nonferrouscladdings,suchastitanium,tantalum, zirconiumandtheiralloysarenotcoveredbythisstandard. ExamplesforjointpreparationaregiveninENISO96924. Thisstandardcoversweldingofcladdingdepositsaswellasweldingofthetransitionzone(s),whenexisting, betweenparentmetalan

18、dcladding.Thesetransitionzonesaremetal combinationsofnonalloyedferrousparent metalwithhighalloyedstainlesssteels,nickelalloysorothernonferrousmetals. Themechanicalandphysicaldesignofthejointsisnotcoveredbythisstandard.Methodsoftestingand acceptancelevelsarenotincludedbecausetheydependontheservicecon

19、ditionsofthefabrication.Thesedetails shouldbeobtainedfromthedesignspecification. Thecorrosionresistanceofthecladdingdependsonmanyfactorsandisnotapartofthisstandard. ForgeneralguidelinesseeEN10111. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromotherpubl

20、ications.These normativereferencesarecitedattheappropriateplacesinthetextandthepublicationsarelistedhereafter.For datedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplytothisEuropean Standardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthelatesteditionoft

21、he publicationreferredtoapplies(includingamendments). EN10113, WeldingRecommendationsforweldingofmetallicmaterialsPart3:Arcweldingofstainless steels. EN100881, StainlesssteelsPart1:Listofstainlesssteels. prENISO5817, WeldingFusionweldedjointsinsteel,nickel,titaniumandtheiralloys(beamweldingexcluded)

22、 Qualitylevelsforimperfections(ISO/DIS5817:2002). ENISO96924, Weldingandalliedprocesses Recommendationsforjointpreparation Part4:Cladsteels (ISO96924:2003). ENISO13916, WeldingGuidanceonthemeasurementofpreheatingtemperature,interpasstemperatureand preheatmaintenancetemperature(ISO13916:1996). prENIS

23、O15607, SpecificationandapprovalofweldingproceduresformetallicmaterialsGeneralrules (ISO/DIS15607:2000). prENISO156091, SpecificationandapprovalofweldingproceduresformetallicmaterialsWeldingprocedure specificationPart1:Arcwelding(ISO/DIS156091:2000). prENISO156141, Specificationandapprovalofweldingp

24、roceduresformetallicmaterialsWeldingprocedure testPart1:Arcandgasweldingofsteelsandarcweldingofnickelandnickelalloys(ISO/DIS156141:2000).EN10115:2003(E) 5 3 Termsanddefinitions ForthepurposesofthisEuropeanStandard,thefollowingtermanddefinitionapply. 3.1 cladsteel combinationoftwoormoredissimilarmeta

25、lsbondedinseparablytogetherbydifferentcladdingprocesses 4Materials 4.1Cladsteels Cladsteelscanbeproducedbyseveralcladdingprocessessuchas: hotrollcladding; explosive welding; surfacing by welding; combinedweld/hotrollcladding. Theinseparablecladding(commonly t 2 2mmwallthickness),whichwillbeincontact

26、withtheadjacentmedium, isdesignedtomeetrequirementssuchascorrosionresistance,abrasionand/orheatresistanceatdifferentworking temperatures. 4.2Parentmetal Theparentmetalisaweldablesteel,commonlyaccordingtoCRISO15608:2000(group1to6).Theparentmetal hastoprovidetherequiredstrengthandtoughnesstomaintainme

27、chanicalintegrity. 4.3Cladding Claddingincludes: StainlesssteelsaccordingtoEN100881; Nickelandnickelalloys; Copperandcopperalloys; Cobaltalloys(stellites). Claddingshallbecapableofbeingjoinedbyarcweldingprocessestotheparentmetals. Thefinishedsurfaceconditionsofcladdingparticularlyusedincomponentsfor

28、thechemicalindustryshould guaranteeanadequatecorrosionresistanceandotherspecifiedcharacteristics.Forinformationoncorrosion resistanceofcladdingseerelevantapplicationstandards. 5 Weldingconsumablesforcladdingdeposits Thecladdingdeposit,includingdilutionwiththecladding,shallbecompatiblewiththecladding

29、.Therefore, consumablesshouldbeselectedwithregardtotheparentmetal,tothecladdingandtheparticularapplication.The consumablesshallcomplywiththerelevantstandardsand/orspecifications. Whereconsumableinsertsareused,theyshallcorrespondwiththerelevantfillermetalcomposition.EN10115:2003(E) 6 Insomecases,thef

30、illermetalsusedforthebutteringmayalsobeusedforfillingandcappingruns,ifappropriate fortheapplication. Theserviceconditionsofacladsteelcomponent,suchasworkingtemperatureorpossiblepostweldheat treatment(PWHT)shallbeconsideredwhenselectingappropriateconsumables. Itisnecessarytopayattentiontotheeffectsof

31、dilutionwhendepositingonelayeronanother,especiallythefirst layerontheparentmetal.Theweldingprocess,theweldingconditionsandtheconsumableshaveasignificant influenceonthechemicalcompositionsandtheferritenumbers(FN)ofastainlesscladdingdeposit.Gainsor lossesofalloyingelements,forexamplethemetallurgicalre

32、actionsbetweenwire/stripandfluxesorgases,haveto betakenintoaccount. Iftheferritenumberisarequirementinthespecification,themethodsformeasurementaccordingtoENISO8249, e. g.themagneticdeterminationwithcalibratedinstruments,shouldbeinaccordancewiththedesign specification.Incaseofdispute,theWRC92constitu

33、tiondiagramshallbeused. 6 Weldingprocedures Differentarcweldingprocessesmaybeusedtoproducecladdingdepositsmatchingspecifiedrequirements. Depositsinone,twoormorelayerscanberealizedinordertoachievetherequiredcharacteristic.Thenumberof thelayersdependsonseveralfactorsandshouldbeconfirmedbyaweldingproce

34、durespecification. Commonlytheselectionofanyweldingproceduredependson: welding position; access conditions; alloytype; specifiedrequirements,suchasdilutionrate(whichshouldgenerallybekeptaslowaspossible,providedthat penetrationisadequate). 7Fabrication Whenstoring,handlingorfabricatingcladsteels,meas

35、uresshallbetakentoprojectthecladdingfrom contaminationandsurfacedamage.Incaseofdamageimpairstheserviceperformance,reconditioningshallbe undertakenaccordingtoEN 10113orotherrelevantstandards. Repairing/restoringofdamagedcladdingshallbesuchastoavoidtheformationofbrittlephases. Jointpreparationshallbei

36、naccordancewithENISO96924. Cladsteelscanbecutusingnormalmethods;shearing(forthinplates)andplasmacuttingshouldbestartedfrom thecladdingside.Whenpreparingjointfaces,oxidation,hardeningandgeneralcontaminationfromthermalcutting processesshallbeeliminatedbymechanicalmachining(grinding)toasufficientdepthf

37、romthecutface.During shearing,crackingandworkhardeningcanoccur;ifany,thisshallberemovedpriortowelding. Mechanicaljointpreparationispreferable. Coldorhotformingoperationscanbecarriedoutoncladsteelsbythemanufactureasappropriate.Theprocessing treatmentandinstructionsaresuppliedbythemanufacturerorfabric

38、atorasappropriate. Hardstampingonthecladdingcauseshighlystressedand/orcorrosionsensitiveareasandshallbeavoided. Alloperationsleadingtotheformationofbrittlephasesinthetransitionzones,forexamplewhengrinding,shallbe avoided.EN10115:2003(E) 7 8Welding 8.1Weldingfrombothsides 8.1.1 Parentmetal Theparentm

39、etalshallfirstbeweldedaccordingtoanqualifiedweldingprocedure. Therootrunshouldnotpenetrateintothecladding. 8.1.2 Singlelayercladdingdeposits Thecladdingdepositshallbeweldedbyaqualifiedweldingprocedure.Allrequirementsconcerningthearcwelding ofdissimilarmetalsshallbeobserved. Asinglelayercladdingdepos

40、itmaybeappliedwhentheweldingprocedurehasbeenshowntoachievethe specifiedrequirements,especiallythechemicalcomposition.Theconsumablesusedforthisapplicationshallbe sufficientlyalloyedtocompensatethedilutionwiththeparentmetalandtomatchthespecifiedcharacteristics.The weldingconsumablesshallbeverifiedbyaq

41、ualifiedprocedureandtheyshallbeappropriatefortheapplication. Weldingprocesseswithlowpenetrationcharacteristicsarerecommended. 8.1.3 Multilayercladdingdeposits Thecladdingdepositshallbeweldedbyaqualifiedprocedure.Allrequirementsconcerningthearcweldingof dissimilarmetalsshallbeobserved. Forthebutterin

42、g(firstlayer),thesameprocedureasmentionedin8.1.2maybevalid. Thesubsequentrunsshouldbeweldedusingconsumableswithahigherorequalalloycontenttothatofthe cladding,orbeadequatefortherequirements. 8.1.4 Nonferrouscladdingdeposits Fornonferrousmetalsandhightemperature( 300C)applications,specialagreementinth

43、edesign specificationsshallbeprovided. 8.2Singlesidewelding Inthecaseofsinglesidewelding,thejointpreparationaccordingtoEN22553isgenerallyan“HU“ora“U“ preparationfortheparentmetalwiththerootfaceentirelywithinthecladding(seeENISO96924,reference numbers:8and9).Therootrunshallbeweldedusingaprocessandconsumablesappropriatefortheapplication. Theweldingconsumablesshallbeverifiedbyaqualifiedprocedureandtheyshallbeappropriateforthe application. Thefillingrun(s)shallbeweldedwithconsumablesandproceduresascommo