1、BRITISH STANDARD AEROSPACE SERIES BS EN 3943:2001 Aerospace series Nickel base alloy NI-B41204 (NiCr13Fe4Si4B3) Filler metal for brazing Powder or paste The European Standard EN 3943:2001 has the status of a British Standard ICS 49.025.01 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPY
2、RIGHT LAWBS EN 3943:2001 This British Standard, having been prepared under the direction of the Engineering Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 May 2001 BSI 05-2001 ISBN 0 580 37491 2 National foreword This British Standard is th
3、e official English language version of EN 3943:2001. The UK participation in its preparation was entrusted to Technical Committee ACE/61, Inspection and testing requirements for aerospace metallic materials, which has the responsibility to: A list of organizations represented on this committee can b
4、e 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 Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “F
5、ind” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from leg
6、al 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 related international and European developments and promulgate them in the UK. S
7、ummary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 6, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date Comme
8、ntsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN3943 February2001 ICS49.025.15 Englishversion AerospaceseriesNickelbasealloyNIB41204 (NiCr13Fe4Si4B3)FillermetalforbrazingPowderorpaste SriearospatialeAlliagebasenickelNIB41204 (NiCr13Fe4Si4B3)MtaldapportdebrasagePoudreou pte LuftundRaumfahrtNickel
9、basislegierungNIB41204 (NiCr13FE4Si4B3)HartlotinFormvonPulveroderPaste ThisEuropeanStandardwasapprovedbyCENon21February2001. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptod
10、atelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlang
11、uageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom. Languageno
12、tice :InaccordancewithResolutionBTC229/1999,thisAECMAstandardispublishedintheEnglishlanguageversiononly.The FrenchandGermanversionsmightbeavailableonrequestfromAECMA(EuropeanAssociationofAerospaceIndustries,RueGulledel le,94, B1200Brussels). EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALIS
13、ATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2001CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN3943:2001EPage2 EN3943:2001 Foreword ThisEuropeanStandardhasbeenpreparedbytheEuropeanAssociationofAerospaceManufactu
14、rers (AECMA). AfterinquiriesandvotescarriedoutinaccordancewiththerulesofthisAssociation,thisStandardhas receivedtheapprovaloftheNationalAssociationsandtheOfficialServicesofthemembercountriesof AECMA,priortoitspresentationtoCEN. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypub
15、licationofanidentical textorbyendorsement,atthelatestbyAugust2001,andconflictingnationalstandardsshallbewithdrawnat thelatestbyAugust2001. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,Cze
16、chRepublic,Denmark, Finland,France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal, Spain,Sweden,SwitzerlandandtheUnitedKingdom.Page3 EN3943:2001 0 Introduction ThisstandardispartoftheseriesofENmetallicmaterialstandardsforaerospaceapplications.Thegeneral organisationofthi
17、sseriesisdescribedinEN4258. ThisstandardhasbeenpreparedinaccordancewithEN45006. 1 Scope Thisstandardspecifiestherequirementsrelatingto: NickelbasealloyNIB41204(NiCr13Fe4Si4B3) Fillermetalforbrazing Powderorpaste foraerospaceapplications. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedo
18、rundatedreferenceprovisionsfromotherpublications. Thesenormativereferencesarecitedattheappropriateplacesinthetextandthepublicationsarelisted hereafter.Fordatedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplyto thisEuropeanStandardonlywhenincorporatedinitbyamendmentorrevision
19、.Forundatedreferencesthe latesteditionofthepublicationreferredtoapplies. EN 2043 AerospaceseriesMetallicmaterialsGeneralrequirementsforsemifinishedproduct qualification(excludingforgingsandcastings) 1) EN3875 AerospaceseriesMetallicmaterialsFillermetalforbrazingTechnicalspecification 1) EN 4258 Aero
20、spaceseriesMetallicmaterialsGeneralorganizationofstandardizationLinks betweentypesofENstandardsandtheiruse EN 45006 AerospaceseriesMetallicmaterialsRulesfordraftingandpresentationofmaterial standardsPart6:Specificrulesforfillermetalsforbrazing 1) 1) PublishedasAECMAPrestandardatthedateofpublicationo
21、fthisstandardPage4 EN3943:2001 1 Materialdesignation NickelbasebrazealloyNIB41204(NiCr13Fe4Si4B3) Others Element C Si P S B Cr Fe Al Co Se Ti Zr Total Ni min. 3,50 2,50 12,0 3,0 2 Chemical composition a % max. 0,03 4,50 0,02 0,02 3,25 14,0 5,0 0,05 0,10 50* ) 0,05 0,05 0,05 Base 3 Methodofmelting Ai
22、rorinertgasorvacuummelted 4.1 Form Powder Paste 4.2 Methodofproduction Waterorinertgasatomisedandsieved Waterorinertgasatomisedandsieved andmixedwithabinder 4.3 Limitdimension(s) mm 5 Technicalspecification EN3875 Deliverycondition Asmanufactured Asmanufactured 6.1 Heattreatment 6.2 Deliveryconditio
23、ncode UU Usecondition Deliveryconditionormixedwithabinder Deliverycondition 7 Heattreatment Characteristics 8.1 Testsample(s) 8.2 Testpiece(s) 8.3 Heattreatment 9 Dimensionsconcerned mm 10 Thicknessofcladdingon eachface % 11 Directionoftestpiece 12 Temperature C 13 Proofstress R p0,2 MPa 14 Strength
24、 R m MPa 15 Elongation A % 16 T Reductionofarea Z % 17 Hardness 18 Shearstrength R c MPa 19 Bending k 20 Impactstrength 21 Temperature C 22 Time h 23 Stress a MPa 24 Elongation a % 25 Rupturestress R MPa 26 C Elongationat rupture A% 27 Notes(seeline98) *) aPage5 EN3943:2001 44 Externaldefects Powder
25、 Paste SeeEN3875 SeeEN3875 53 Thermalanalysis (Differentialthermalanalysis) 7 Liquidus: 1125C Solidus: 960C 76 Wettability (Fusiontest) SeeEN3875 78 Metallicalloycontent SeeEN3875 7 Powder Paste 84% metallicalloycontent 90% 82 Batchuniformity (Materialverification) SeeEN3875 83 Particlesize (Sievean
26、alysis) SeeEN3875 95 Markinginspection SeeEN3875 96 Dimensionalinspection SeeEN3875 98 Notes *) p.p.m. a Thechemicalcompositionreferstothemetallicalloycontent. 99 Typicaluse Joiningnickelandcobaltbaseheatresistingalloys.Page6 EN3943:2001 100 Productqualification SeeEN2043 Qualificationprogrammetobea
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