AMS-4126

AEROSPACEMATERIALSPECIFICATIONAluminumAlloy,DieandHandForgingsandRolledRings5.6Zn-2.5Mg-1.6Cu-0.23Cr(7075-T6)SolutionandPrecipitationHeatTreated(CompositionsimilartoUNSA97075)SAETechnicalStandardsBoardRulesprovidethat:“ThisreportispublishedbySAEtoadvancethestateoftechnicalandengineeringsciences.Theuseofthisreportisentirelyvoluntary,anditsapplicabilityandsuitabilityforanyparticularuse,includinganypatentinfringementarisingtherefrom,isthesoleresponsibilityoftheuser.”SAEreviewseachtechnicalreportatleasteveryfiveyearsatwhichtimeitmaybereaffirmed,revised,orcancelled.SAEinvitesyourwrittencommentsandsuggestions.Copyright©2005SAEInternationalAllrightsreserved.Nopartofthispublicationmaybereproduced,storedinaretrievalsystemortransmitted,inanyformorbyanymeans,electronic,mechanical,photocopying,recording,orotherwise,withoutthepriorwrittenpermissionofSAE.TOPLACEADOCUMENTORDER:Tel:[phone](insideUSAandCanada)Tel:[phone](outsideUSA)Fax:[phone]Email:[e-mail]:®IssuedMAY1973RevisedAUG2005SupersedingAMS4126B1.SCOPE:1.1Form:Thisspecificationcoversanaluminumalloyintheformofdieforgings,handforgings,rolledrings,andstockforforgingorrolledrings.1.2Application:Theseproductshavebeenusedtypicallyforapplicationsrequiringhighstrengthinlight-to-mediumsections,butusageisnotlimitedtosuchapplications.1.2.1Certaindesignandprocessingproceduresmaycausetheseproductstobecomesusceptibletostress-corrosioncracking;ARP823recommendspracticestominimizesuchconditions.2.APPLICABLEDOCUMENTS:Theissueofthefollowingdocumentsineffectonthedateofthepurchaseorderformsapartofthisspecificationtotheextentspecifiedherein.Thesuppliermayworktoasubsequentrevisionofadocumentunlessaspecificdocumentissueisspecified.Whenthereferenceddocumenthasbeencancelledandnosupersedingdocumenthasbeenspecified,thelastpublishedissueofthatdocumentshallapply.CopyrightSAEInternationalProvidedbyIHSunderlicensewithSAELicensee=MessierDowty/5905381001NotforResale,09/22/200600:20:49MDTNoreproductionornetworkingpermittedwithoutlicensefromIHS--````,``,`,,,````,``,,`````,,-`-`,,`,,`,`,,`---SAE-2-AMS4126CAMS4126C2.1SAEPublications:AvailablefromSAE,400CommonwealthDrive,Warrendale,PA15096-0001or:AvailablefromASTM,100BarrHarborDrive,P.O.BoxC700,WestConshohocken,PA19428-2959or:AvailablefromAmericanNationalStandardsInstitute,Inc.,23West43rdStreet,NewYork,NY10036-8002.ANSIH35.2DimensionalTolerancesforAluminumMillProductsANSIH35.2MDimensionalTolerancesforAluminumMillProducts(Metric)CopyrightSAEInternationalProvidedbyIHSunderlicensewithSAELicensee=MessierDowty/5905381001NotforResale,09/22/200600:20:49MDTNoreproductionornetworkingpermittedwithoutlicensefromIHS--````,``,`,,,````,``,,`````,,-`-`,,`,,`,`,,`---SAE-3-AMS4126CAMS4126C3.TECHNICALREQUIREMENTS:3.1Composition:ShallconformtothepercentagesbyweightshowninTable1,determinedinaccordancewithAMS2355.TABLE1-CompositionElementminmaxSiliconIronCopperManganeseMagnesiumChromiumZincTitaniumOtherElements,eachOtherElements,totalAluminum----1.2--2.10.185.1------remainder0.400.502.00.302.90.286.10.200.050.153.2Condition:Shallbeasfollows:3.2.1DieForgings,HandForgings,andRolledRings:SolutionandprecipitationheattreatedinaccordancewithAMS2772tothe-T6temper(SeeAS1990).3.2.2StockforForgingorRolledRings:Asorderedbytheforgingorrolledringmanufacturer.3.3Properties:Theproductshallconformtothefollowingrequirements,determinedonthemillproductinaccordancewithAMS2355:3.3.1DieForgings,HandForgings,andRolledRings:3.3.1.1TensileProperties:Shallbeasfollows:3.3.1.1.1DieForgings:3.3.1.1.1.1WithGrainFlow:Specimens,machinedfromforgings4inches(102mm)andunderinnominalthicknessattimeofheattreatmentorfromprolongationsonsuchforgings,withaxisofspecimeninareaofgagelengthvaryingnotmorethan15degreesfromparalleltotheforgingflowlines,shallhavethepropertiesshowninTable2providedtheas-forgedthicknessisnotmorethantwicetheheattreatedthickness.CopyrightSAEInternationalProvidedbyIHSunderlicensewithSAELicensee=MessierDowty/5905381001NotforResale,09/22/200600:20:49MDTNoreproductionornetworkingpermittedwithoutlicensefromIHS--````,``,`,,,````,``,,`````,,-`-`,,`,,`,`,,`---SAE-4-AMS4126CAMS4126CTABLE2A-MinimumTensileProperties,Inch/PoundUnitsNominalThicknessatTimeofHeatTreatmentInchesTensileStrengthksiYieldStrengthat0.2%OffsetksiElongationin2Inchesor4D%Upto1,inclOver1to3,inclOver3to4,incl75.074.073.064.063.062.0777TABLE2B-MinimumTensileProperties,SIUnitsNominalThicknessatTimeofHeatTreatmentMillimete