1、BRITISH STANDARD AEROSPACE SERIES BS EN 4340:2002 Magnesium alloy MG-W68001 Filler metal for welding Wire and rod The European Standard EN 4340:2002 has the status of a British Standard ICS 49.025.15 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBS EN 4340:2002 This British S
2、tandard, having been prepared under the direction of the Engineering Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 4 February 2002 BSI 4 February 2002 ISBN 0 580 38987 1 National foreword This British Standard is the officia
3、l English language version of EN 4340:2002. The UK participation in its preparation was entrusted to Technical Committee ACE/24, Wrought and cast light alloys for aerospace, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secre
4、tary. 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” facility of the BSI Standards
5、 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 obligations. aid enquirers to u
6、nderstand 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 of pages This document comprises a front
7、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 CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENOR
8、M EN4340 January2002 ICS49.025.15 Englishversion AerospaceseriesMagnesiumalloyMGW68001Fillermetal forweldingWireandrod SriearospatialeAlliagedemagnsiumMGW68001 MtaldapportdesoudageFiletbaguette LuftundRaumfahrtMagnesiumlegierungMGW68001 SchweizusatzDrahtundStbe ThisEuropeanStandardwasapprovedbyCENon
9、2May2001. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentr
10、eortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodie
11、sofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStass
12、art,36B1050Brussels 2002CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN4340:2002EEN4340:2002(E) 2 Foreword Thisdocument(EN4340:2002)hasbeenpreparedbytheEuropeanAssociationofAerospace Manufacturers(AECMA). Afterenquiriesandvotescarriedoutinaccordanc
13、ewiththerulesofthisAssociation,thisStandardhas receivedtheapprovaloftheNationalAssociationsandtheOfficialServicesofthemembercountriesof AECMA,priortoitspresentationtoCEN ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidentical textorbyendorsement,atthelatestbyJul
14、y2002,andconflictingnationalstandardsshallbewithdrawnatthe latestbyJuly2002. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark, Finland,France,Germany,Greece,Iceland,Irel
15、and,Italy,Luxembourg,Malta,Netherlands,Norway, Portugal,Spain,Sweden,SwitzerlandandtheUnitedKingdom.EN4340:2002(E) 3 0 Introduction ThisstandardispartoftheseriesofENmetallicmaterialstandardsforaerospaceapplications.Thegeneral organizationofthisseriesisdescribedinEN4258. Thisstandardhasbeenpreparedin
16、accordancewithEN45002. 1 Scope Thisstandardspecifiestherequirementsrelatingto: MagnesiumalloyMGW68001 Fillermetalforwelding Wireandrod foraerospaceapplications. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreferenceprovisionsfromotherpublications. Thesenormativereferencesare
17、citedattheappropriateplacesinthetextandthepublicationsarelisted hereafter.Fordatedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplyto thisEuropeanStandardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthe latesteditionofthepublicationreferredtoapplies. EN20
18、43 AerospaceseriesMetallicmaterialsGeneralrequirementsforsemifinishedproduct qualification(excludingforgingsandcastings) 1) EN3879 AerospaceseriesMetallicmaterialsFillermetalforweldingTechnicalspecification 1) EN4258 AerospaceseriesMetallicmaterialsGeneralorganizationofstandardizationLinks betweenty
19、pesofENstandardsandtheiruse EN 45002 AerospaceseriesMetallicmaterialsRulesfordraftingandpresentationofmaterial standardsPart2:Specificrulesforaluminium,aluminiumalloysandmagnesiumalloys 1) 1) PublishedasAECMAPrestandardatthedateofpublicationofthisstandardEN4340:2002(E) 4 1 Materialdesignation Magnes
20、iumalloyMGW68001 2 Others Element Al Cu Fe Mn Ni Rareearth Si Zn Zr Each Total Mg min. 2,5 2,0 0,40 Chemical composition % max. 0,02 0,03 0,01 0,15 50 a 4,0 0,01 3,0 1,0 0,05 0,20 Base 3 Methodofmelting 4.1 Form Wireandrod 4.2 Methodofproduction Colddrawn 4.3 Limitdimension(s) mm 5 Technicalspecific
21、ation EN3879 Deliverycondition Colddrawnandannealed 6.1 Heattreatment 6.2 Deliveryconditioncode U Usecondition Deliverycondition 7 Heattreatment Characteristics 8.1 Testsample(s) 8.2 Testpiece(s) 8.3 Heattreatment 9 Dimensionsconcerned mm 10 Thicknessofcladdingon eachface % 11 Directionoftestpiece 1
22、2 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 rupture A% 27 Notes(seeli
23、ne98) aEN4340:2002(E) 5 44 Externaldefects SeeEN3879 57 Residualstress SeeEN3879 61 Internaldefects SeeEN3879 82 Batchuniformity (Materialverification) SeeEN3879 95 Markinginspection SeeEN3879 96 Dimensionalinspection SeeEN3879 98 Notes a p.p.m. 99 Typicaluse EN4340:2002(E) 6 100 Productqualificatio
24、n SeeEN2043 Qualificationprogrammetobeagreedbetweenmanufacturerandpurchaser.BS EN 4340:2002 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 the UK view on standards in Europe and
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