1、BRITISH STANDARD AEROSPACE SERIES BS EN 4250:2001 Aerospace series Nickel base alloys NI-B41001 (NiCr19Si7B) Filler metal for brazing Amorphous foil The European Standard EN 4250:2001 has the status of a British Standard ICS 49.025.15; 77.120.40; 25.160.20 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS
2、 PERMITTED BY COPYRIGHT LAWBS EN 4250:2001 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 September 2001 BSI 07-2001 ISBN 0 580 38273 7 National foreword Thi
3、s British Standard is the official English language version of EN 4250:2001. 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
4、 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 Standards Catalogue under the section entitled “International Standards Correspondence In
5、dex”, or by using the “Find” 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
6、confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible 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
7、 the UK. Summary 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.
8、Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN4250 June2001 ICS49.025.15 Englishversion AerospaceseriesNickelbasealloysNIB41001(NiCr19Si7B) FillermetalforbrazingAmorphousfoil SriearospatialeAlliagebasenickelNIB41001 (NiCr19Si7B)MtaldapportdebrasageFeuillard amorphe LuftundRaumfahrtNi
9、ckelbasislegierungNIB41001 (NiCr19Si7B)HartlotinFormvonamorpherFolie ThisEuropeanStandardwasapprovedbyCENon2May2001. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelists
10、andbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandn
11、otifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEF
12、ORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2001CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN4250:2001EPage2 EN4250:2001 Foreword ThisEuropeanStandardhasbeenpreparedbyth
13、eEuropeanAssociationofAerospaceManufacturers (AECMA). AfterinquiriesandvotescarriedoutinaccordancewiththerulesofthisAssociation,thisStandardhas receivedtheapprovaloftheNationalAssociationsandtheOfficialServicesofthemembercountriesof AECMA,priortoitspresentationtoCEN. ThisEuropeanStandardshallbegiven
14、thestatusofanationalstandard,eitherbypublicationofanidentical textorbyendorsement,atthelatestbyDecember2001,andconflictingnationalstandardsshallbe withdrawnatthelatestbyDecember2001. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimple
15、mentthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark, Finland,France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal, Spain,Sweden,SwitzerlandandtheUnitedKingdom.Page3 EN4250:2001 0 Introduction ThisstandardispartoftheseriesofENmetallicmaterialstandardsforaerosp
16、aceapplications.Thegeneral organisationofthisseriesisdescribedinEN4258. ThisstandardhasbeenpreparedinaccordancewithEN45006. 1 Scope Thisstandardspecifiestherequirementsrelatingto: NickelbasealloyNIB41001(NiCr19Si7B) Fillermetalforbrazing Amorphousfoil foraerospaceapplications. 2 Normativereferences
17、ThisEuropeanStandardincorporatesbydatedorundatedreferenceprovisionsfromotherpublications. Thesenormativereferencesarecitedattheappropriateplacesinthetextandthepublicationsarelisted hereafter.Fordatedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplyto thisEuropeanStandardonlyw
18、henincorporatedinitbyamendmentorrevision.Forundatedreferencesthe latesteditionofthepublicationreferredtoapplies. EN 2043 AerospaceseriesMetallicmaterialsGeneralrequirementsforsemifinishedproduct qualification(excludingforgingsandcastings) 1) EN3875 AerospaceseriesMetallicmaterialsFillermetalforbrazi
19、ngTechnicalspecification 1) EN 4258 AerospaceseriesMetallicmaterialsGeneralorganizationofstandardizationLinks betweentypesofENstandardsandtheiruse EN 45006 AerospaceseriesMetallicmaterialsRulesfordraftingandpresentationofmaterial standardsPart6:Specificrulesforfillermetalsforbrazing 1) 1) Publisheda
20、sAECMAPrestandardatthedateofpublicationofthisstandardPage4 EN4250:2001 1 Materialdesignation NickelbasebrazealloyNIB41001(NiCr19Si7B) Others Element C Si P S B Cr Al Co Fe Se Ti Zr Total Ni min. 7,0 1,0 18,5 2 Chemical composition % max. 0,08 7,5 0,02 0,02 1,5 19,5 0,05 0,10 0,5 50*) 0,05 0,05 0,05
21、Base 3 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 Characteris
22、tics 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 R m MPa 15 Elongation A % 16 T Reductionofarea Z % 17 Hardness 18 Shearstrength R c MPa 19 Bending k 2
23、0 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) *)Page5 EN4250:2001 44 Externaldefects SeeEN3875 SeeEN3875 53 Thermalanalysis (Differentialthermalanalysis) 7 Liquidus: 1150C Solidus: 1065C 76 Wettab
24、ility (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 Joiningnickelandcobaltbasealloys.Page
25、6 EN4250:2001 100 Productqualification SeeEN2043 Qualificationprogrammetobeagreedbetweenmanufacturerandpurchaser.BS EN 4250:2001 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents th
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