1、BRITISH STANDARD AEROSPACE SERIES BS EN 3959:2001 Aerospace series Cobalt base alloy CO-B41601 (CoCr19Ni17Si8W4) Filler metal for brazing Powder or paste The European Standard EN 3959:2001 has the status of a British Standard ICS 49.025.15 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COP
2、YRIGHT LAWBS EN 3959:2001 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 3725 3 National foreword This British Standard
3、 is the official English language version of EN 3959:2001. 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
4、 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 Index”, or by using
5、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 confer immunity fr
6、om 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 the UK. Summary o
7、f 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 CommentsEUROP
8、EANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN3959 June2001 ICS49.025.15 Englishversion AerospaceseriesCobaltbasealloyCOB41601 (CoCr19Ni17Si8W4)FillermetalforbrazingPowderorpaste SriearospatialeAlliagebasecobaltCOB41601 (CoCr19Ni17Si8W4)MtaldapportdebrasagePoudre oupte LuftundRaumfahrtKobaltbasislegie
9、rungCOB41601 (CoCr19Ni17Si8W4)HartlotinFormvonPulveroder Paste ThisEuropeanStandardwasapprovedbyCENon19April2001. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsand
10、bibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnoti
11、fiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORS
12、TANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2001CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN3959:2001EPage2 EN3959:2001 Foreword ThisEuropeanStandardhasbeenpreparedbytheEu
13、ropeanAssociationofAerospaceManufacturers (AECMA). AfterinquiriesandvotescarriedoutinaccordancewiththerulesofthisAssociation,thisStandardhas receivedtheapprovaloftheNationalAssociationsandtheOfficialServicesofthemembercountriesof AECMA,priortoitspresentationtoCEN. ThisEuropeanStandardshallbegiventhe
14、statusofanationalstandard,eitherbypublicationofanidentical textorbyendorsement,atthelatestbyDecember2001,andconflictingnationalstandardsshallbe withdrawnatthelatestbyDecember2001. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplemen
15、tthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark, Finland,France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal, Spain,Sweden,SwitzerlandandtheUnitedKingdom.Page3 EN3959:2001 0 Introduction ThisstandardispartoftheseriesofENmetallicmaterialstandardsforaerospace
16、applications.Thegeneral organisationofthisseriesisdescribedinEN4258. ThisstandardhasbeenpreparedinaccordancewithEN45006. 1 Scope Thisstandardspecifiestherequirementsrelatingto: CobaltbasealloyCOB41601(CoCr19Ni17Si8W4) Fillermetalforbrazing Powderorpaste foraerospaceapplications. 2 Normativereference
17、s ThisEuropeanStandardincorporatesbydatedorundatedreferenceprovisionsfromotherpublications. Thesenormativereferencesarecitedattheappropriateplacesinthetextandthepublicationsarelisted hereafter.Fordatedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplyto thisEuropeanStandardonl
18、ywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthe latesteditionofthepublicationreferredtoapplies. EN 2043 AerospaceseriesMetallicmaterialsGeneralrequirementsforsemifinishedproduct qualification(excludingforgingsandcastings) 1) EN3875 AerospaceseriesMetallicmaterialsFillermetalforbra
19、zingTechnicalspecification 1) EN 4258 AerospaceseriesMetallicmaterialsGeneralorganizationofstandardizationLinks betweentypesofENstandardsandtheiruse EN 45006 AerospaceseriesMetallicmaterialsRulesfordraftingandpresentationofmaterial standardsPart6:Specificrulesforfillermetalsforbrazing 1) 1) Publishe
20、dasAECMAPrestandardatthedateofpublicationofthisstandardPage4 EN3959:2001 1 Materialdesignation CobaltbasebrazealloyCOB41601(CoCr19Ni17Si8W4) Element C Si P S B Cr Ni W min. 0,35 7,5 0,70 18,0 16,0 3,5 max. 0,45 8,5 0,02 0,02 0,90 20,0 18,0 4,5 Others Element Al Fe Ti Zr Se Total Co min. 2 Chemical c
21、omposition a % max. 0,050 1,0 0,05 0,05 50*) 0,05 Base 3 Methodofmelting Airorinertgasorvacuummelted 4.1 Form Powder Paste 4.2 Methodofproduction Waterorinertgasatomisedandsieved Waterorinertgasatomisedandsieved andmixedwithabinder 4.3 Limitdimension(s) mm 5 Technicalspecification EN3875 Deliverycon
22、dition Asmanufactured Asmanufactured 6.1 Heattreatment 6.2 Deliveryconditioncode 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
23、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 Impactstrength 21 Temperature C 22 Time h 23 Stress a MPa 24 Elongation a % 25 Rupturestress R MPa 26 C Elongationat rup
24、ture A% 27 Notes(seeline98) *) aPage5 EN3959:2001 44 Externaldefects Powder Paste SeeEN3875 SeeEN3875 53 Thermalanalysis (Differentialthermalanalysis) 7 Liquidus: 1150C Solidus: 1120C 76 Wettability (Fusiontest) SeeEN3875 78 Metallicalloycontent SeeEN3875 7 Powder Paste 84% metallicalloycontent 90%
25、82 Batchuniformity (Materialverification) SeeEN3875 83 Particlesize (Sieveanalysis) SeeEN3875 95 Markinginspection SeeEN3875 96 Dimensionalinspection SeeEN3875 98 Notes *) p.p.m. a Thechemicalcompositionreferstothemetallicalloycontent. 99 Typicaluse Joiningcobaltalloys.Page6 EN3959:2001 100 Productq
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