1、BRITISH STANDARD AEROSPACE SERIES BS EN 3921:2001 Aerospace series Nickel base alloy NI-B41203 (NiCr7Si5B3) Filler metal for brazing Amorphous foil The European Standard EN 3921:2001 has the status of a British Standard ICS 49.025.01 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT
2、 LAWBS EN 3921:2001 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 37474 2 National foreword This British Standard is the off
3、icial English language version of EN 3921:2001. 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 be obt
4、ained 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 “Find”
5、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 legal ob
6、ligations. 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. Summar
7、y 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 CommentsEU
8、ROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN3921 February2001 ICS49.025.15 Englishversion AerospaceseriesNickelbasealloyNIB41203(NiCr7Si5B3) FillermetalforbrazingAmorphousfoil SriearospatialeAlliagebasenickelNIB41203 (NiCr7Si5B3)MtaldapportdebrasageFeuillard amorphe LuftundRaumfahrtNickelbasisleg
9、ierungNIB41203 (NiCr7Si5B3)HartlotinFormvonamorpherFolie ThisEuropeanStandardwasapprovedbyCENon21February2001. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbib
10、liographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifie
11、dtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTAN
12、DARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2001CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN3921:2001EPage2 EN3921:2001 Foreword ThisEuropeanStandardhasbeenpreparedbytheEurop
13、eanAssociationofAerospaceManufacturers (AECMA). AfterinquiriesandvotescarriedoutinaccordancewiththerulesofthisAssociation,thisStandardhas receivedtheapprovaloftheNationalAssociationsandtheOfficialServicesofthemembercountriesof AECMA,priortoitspresentationtoCEN. ThisEuropeanStandardshallbegiventhesta
14、tusofanationalstandard,eitherbypublicationofanidentical textorbyendorsement,atthelatestbyAugust2001,andconflictingnationalstandardsshallbewithdrawnat thelatestbyAugust2001. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEu
15、ropeanStandard:Austria,Belgium,CzechRepublic,Denmark, Finland,France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal, Spain,Sweden,SwitzerlandandtheUnitedKingdom.Page3 EN3921:2001 0 Introduction ThisstandardispartoftheseriesofENmetallicmaterialstandardsforaerospaceapplica
16、tions.Thegeneral organisationofthisseriesisdescribedinEN4258. ThisstandardhasbeenpreparedinaccordancewithEN45006. 1 Scope Thisstandardspecifiestherequirementsrelatingto: NickelbasealloyNIB41203(NiCr7Si5B3) Fillermetalforbrazing Amorphousfoil foraerospaceapplications. 2 Normativereferences ThisEurope
17、anStandardincorporatesbydatedorundatedreferenceprovisionsfromotherpublications. Thesenormativereferencesarecitedattheappropriateplacesinthetextandthepublicationsarelisted hereafter.Fordatedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplyto thisEuropeanStandardonlywhenincorpo
18、ratedinitbyamendmentorrevision.Forundatedreferencesthe latesteditionofthepublicationreferredtoapplies. EN 2043 AerospaceseriesMetallicmaterialsGeneralrequirementsforsemifinishedproduct qualification(excludingforgingsandcastings) 1) EN3875 AerospaceseriesMetallicmaterialsFillermetalforbrazingTechnica
19、lspecification 1) EN 4258 AerospaceseriesMetallicmaterialsGeneralorganizationofstandardizationLinks betweentypesofENstandardsandtheiruse EN 45006 AerospaceseriesMetallicmaterialsRulesfordraftingandpresentationofmaterial standardsPart6:Specificrulesforfillermetalsforbrazing 1) 1) PublishedasAECMAPres
20、tandardatthedateofpublicationofthisstandardPage4 EN3921:2001 1 Materialdesignation NickelbasebrazealloyNIB41203(NiCr7Si5B3) Others Element C Si P S B Cr Fe Al Co Se Ti Zr Total Ni min. 4,0 2,75 6,0 2,5 2 Chemical composition % max. 0,06 5,0 0,02 0,02 3,50 8,0 3,5 0,05 0,10 50*) 0,05 0,05 0,05 Base 3
21、 Methodofmelting Airorinertgasorvacuummelted 4.1 Form Amorphousfoil 4.2 Methodofproduction Meltspun 4.3 Limitdimension(s) mm 5 Technicalspecification EN3875 Deliverycondition Asmanufactured 6.1 Heattreatment 6.2 Deliveryconditioncode U Usecondition Deliverycondition 7 Heattreatment Characteristics 8
22、.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 R m MPa 15 Elongation A % 16 T Reductionofarea Z % 17 Hardness 18 Shearstrength R c MPa 19 Bending k 20 Impa
23、ctstrength 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) *)Page5 EN3921:2001 44 Externaldefects SeeEN3875 SeeEN3875 53 Thermalanalysis (Differentialthermalanalysis) 7 Liquidus: 1000C Solidus: 970C 76 Wettability (
24、Fusiontest) SeeEN3875 79 Porosity SeeEN3875 81 Formabilityofjoiningmaterials (Flexibilitytest) SeeEN3875 82 Batchuniformity (Materialverification) SeeEN3875 95 Markinginspection SeeEN3875 96 Dimensionalinspection SeeEN3875 98 Notes *) p.p.m. 99 Typicaluse Joiningcorrosionandheatresistingsteelsandall
25、oys.Page6 EN3921:2001 100 Productqualification SeeEN2043 Qualificationprogrammetobeagreedbetweenmanufacturerandpurchaser.BS EN 3921:2001 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It pre
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