SAE-AMS4202D-2005

AEROSPACEMATERIALSPECIFICATIONAluminumAlloyPlate5.7Zn-2.2Mg-1.6Cu-0.22Cr(7475-T7351)SolutionHeatTreated,StressRelievedbyStretching,andPrecipitationHeatTreated(CompositionsimilartoUNSA97475)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]:®IssuedJUL1978RevisedJUL2005SupersedingAMS4202C1.SCOPE:1.1Form:Thisspecificationcoversanaluminumalloyintheformofplate.1.2Application:Thisplatehasbeenusedtypicallyforstructuralapplicationsrequiringhighstrengthandresistancetostress-corrosion,moderatefatiguestrength,andhighfracturetoughness,butusageisnotlimitedtosuchapplications.2.APPLICABLEDOCUMENTS:Theissueofthefollowingdocumentsineffectonthedateofthepurchaseorderformsapartofthisspecificationtotheextentspecifiedherein.Thesuppliermayworktoasubsequentrevisionofadocumentunlessaspecificdocumentissueisspecified.Whenthereferenceddocumenthasbeencancelledandnosupersedingdocumenthasbeenspecified,thelastpublishedissueofthatdocumentshallapply.2.1SAEPublications:AvailablefromSAE,400CommonwealthDrive,Warrendale,PA15096-0001or:AvailablefromASTM,100BarrHarborDrive,WestConshohocken,PA19428-2959or(Chevron-Notch)FractureToughnessofMetallicMaterials2.3ANSIPublications:AvailablefromANSI,25West43rdStreet,NewYork,NY10036or:3.1Composition:ShallconformtothepercentagesbyweightshowninTable1determinedinaccordancewithAMS2355.TABLE1-CompositionElementsminmaxSiliconIronCopperManganeseMagnesiumChromiumTitaniumZincOtherElements,eachOtherElements,totalAluminum----1.2--1.90.18--5.2----remainder0.100.121.90.062.60.250.066.20.050.15--``,,,``,,``,```,,,``,,,,,,,,``-`-`,,`,,`,`,,`---SAE-3-AMS4202DAMS4202D3.2Condition:Solutionheattreated,stressrelievedbystretchingtoproduceanominalpermanentsetof2%butnotlessthan1-1/2%normorethan3%,andprecipitationheattreatedtothe–T7351temper(SeeAS1990).HeattreatmentshallbeinaccordancewithAMS2772.3.2.1Plateshallreceivenofurtherstraighteningoperationsafterstretching.3.3Properties:Plateshallconformtothefollowingrequirements,determinedinaccordancewithAMS2355onthemillproductexceptthatfracturetoughness(KIC)andchevron-notchfracturetoughness(KIVM)ornotchtensiletesting(NTS/TYS)shallbeperformedasin3.3.2.1,3.3.2.2or3.3.2.3,respectively.3.3.1TensileProperties:ShallbeasshowninTable2and3.3.1.2.TABLE2A-MinimumTensileProperties,Inch-PoundUnitsNominalThicknessInchesSpecimenOrientationTensileStrengthksiYieldStrengthat0.2%OffsetksiElongationin2Inchesor4D%0.250to1.500,exclLongitudinalLong-Trans.71.071.060.060.01091.500LongitudinalLong-Trans.Short-Trans71.071.067.060.060.056.01094Over1.500to2.000,inclLongitudinalLong-Trans.Short-Trans70.070.066.058.058.054.01084Over2.000to2.500,inclLongitudinalLong-Trans.Short-Trans69.069.065.057.057.053.01084Over2.500to3.000,inclLongitudinalLong-Trans.Short-Trans68.068.065.056.056.053.01083Over3.000to3.500,inclLongitudinalLong-Trans.Short-Trans65.065.064.053.053.051.01083Over3.500to4.000,inclLongitudinalLong-Trans.Short-Trans64.064.063.052.052.050.0973--``,,,``,,``,```,,,``,,,,,,,,``-`-`,,`,,`,`,,`---SAE-4-AMS4202DAMS4202DTABLE2B-MinimumTensileProperties,SIUnitsNominalThicknessMillimetersSpecimenOrientationTensileStrengthMPaYieldStrengthat0.2%OffsetMPaElongationin50.8mmor4D%Over6.35to38.10,exclLongitudinalLong-Trans.49049041441410938.10LongitudinalLong-Trans.Short-Trans4904904624144143861094Over38.10to50.80,inclLongitudinalLong-Trans.Short-Trans4834834554004003721084Over50.80to63.50,inclLongitudinalLong-Trans.Sh