AMS-2380-E

SAETechnicalStandardsBoardRulesprovidethat:ThisreportispublishedbySAEtoadvancethestateoftechnicalandengineeringsciences.Theuseofthisreportisentirelyvoluntary,anditsapplicabilityandsuitabilityforanyparticularuse,includinganypatentinfringementarisingtherefrom,isthesoleresponsibilityoftheuser.SAEreviewseachtechnicalreportatleasteveryfiveyearsatwhichtimeitmaybereaffirmed,revised,orcancelled.SAEinvitesyourwrittencommentsandsuggestions.AMS2380E@AE-AerospaceAEROSPACEAnSAEInternationalGroupCopyrightQ2003SAEInternationalAllrightsreserved.Nopartofthispublicationmaybereproduced,storedinaretrievalsystemortransmitted,inanyformorbyanymeans,electronic,mechanical,photocopying,recording,orotherwise,withoutthepriorwrittenpermissionofSAE.==TOPLACEADOCUMENTORDER:Tel:[phone](insideUSAandCanada)Tel:[phone](outsideUSA)Fax:[phone]Email:[e-mail]:http:ll:Thisspecificationcoverstheproceduresforapprovalofproductsofpremium-qualitytitaniumalloysandthecontrolstobeexercisedinproducingsuchproducts.1.1.1Thisspecificationrequiresapprovedsources(See3.1and4.4).1.2Application:Thisspecificationhasbeenusedtypicallyforpartsfabricatedfromtitaniumalloyswhichrequireapprovaloftheproductandfacetsofitsproductiontoensurethatproductionlotsareofthesamemetallurgicalquality,areproducedbythesamebasicproceduresastheproductsoriginallyqualified,andforpartssubjectedtorigidinspectionstandardsthroughoutmanufacturefromingottofinishedpart,butusageisnotlimitedtosuchapplications.1.3Classification:Thisspecificationcoversfourgradesofpremium-qualitytitaniumalloyproductsbasedonthemeltingpracticeusedinmakingthealloy,asfollows:Grade1DoubleConsumableElectrodeVacuumArcMeltedGrade2TripleConsumableElectrodeVacuumArcMeltedGrade3ElectronBeamColdHearthRefined(EBCHR)FollowedbyaSingleConsumableElectrodeVacuumArcMeltGrade4PlasmaArcMeltedColdHearthRefined(PAMCHR)FollowedbyaSingleConsumableElectrodeVacuumArcMelt1.3.1Anygrademaybesuppliedunlessaspecificgradeisspecified.Thegradesuppliedshallbereported.AMS2380ESAEAMS2380E2.APPLICABLEDOCUMENTS:Theissueofthefollowingdocumentsineffectonthedateofthepurchaseorderformsapartofthisspecificationtotheextentspecifiedherein.Thesuppliermayworktoasubsequentrevisionofadocumentunlessaspecificdocumentissueisspecified.Whenthereferenceddocumenthasbeencancelledandnosupersedingdocumenthasbeenspecified,thelastpublishedissueofthatdocumentshallapply.2.1SAEPublications:AvailablefromSAE,400CommonwealthDrive,Warrendale,PA15096-0001or:AvailablefromASTM,I00BarrHarborDrive,WestConshohocken,PA19428-2959or:Shallbeproducedasspecifiedhereinundereffectivecontrolsofallvariablesofthemeltingprocessestoproduceconsistentlyuniformingotswhichwillyieldproductsmeetingtherequirementsofthisspecification.Ingotsshallbeproducedonlybyapprovedsources(See1.I.Iand4.4).3.1.1RawMaterialControl:3.1.I.ISponge:Meltsourceshalleitherproduceorprocurespongetoaspecificationapprovedasin4.4.2.1.I.Spongeshallbefreeofcontaminantsconsideredtocausehigh-andlorlow-densityinclusionsorofexcesselementswhichmightalterorinfluencethephasestructureorcontentoftheintendedfinalproduct.lnspectionfrequencyandmethodsshallbeasagreeduponbypurchaserandvendor.CompositionshallbedeterminedinaccordancewithASTME1409foroxygen,otherelementsinaccordancewithASTME120,byspectrochemicalmethods,orbyotheranalyticalmethodsacceptabletopurchaser.AMS2380ESAEAMS2380E3.1.I.2MasterAlloyandAlloyingElements:Meltsourceshallprocuremasteralloyandalloyingelementstoaspecificationapprovedasin4.4.2.1.I.Masteralloyandalloyingelementsshallbefreeofoxides,nitrides,andotherdetrimentalforeignmaterials,includingmaterialswhichwouldcausehigh-and/orlow-densityinclusions.Theboroncontentofthemasteralloyshallnotexceed0.005%byweight(50ppm).Methodsofanalysisandinspectionofmasteralloysandalloyingelementsshallbeasagreeduponbythemelterorsupplierandpurchaser.Noelementsshallbeaddedexceptasshownasanelementinthecompositiondetailedintheapplicablematerialspecification.Aresidualelementisdefinedasanelementpresentinametaloranalloyinsmallquantitiesinherenttotherawmaterialsormanufacturingprocessbutnotaddedintentionally.3.1.I.3Recycling:3.1.1.3.1Grade1andGrade2:Previouslymeltedalloymayberecycledprovidedsuchmaterialisclean,freeofheavyscale,refractories,high-densitymaterial,andcarbidesandissegregatedastoalloygrade.Stubsmaybeusedforremeltandshallbemeltedaminimumoftwotimesasspecifiedin3.1.2.Noflame-cutmaterialorsplitendsshallberecycledunlessallhardscaleisremoved,followe