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__________________________________________________________________________________________________________________________________________SAETechnicalStandardsBoardRulesprovidethat:“ThisreportispublishedbySAEtoadvancethestateoftechnicalandengineeringsciences.Theuseofthisreportisentirelyvoluntary,anditsapplicabilityandsuitabilityforanyparticularuse,includinganypatentinfringementarisingtherefrom,isthesoleresponsibilityoftheuser.”SAEreviewseachtechnicalreportatleasteveryfiveyearsatwhichtimeitmayberevised,reaffirmed,stabilized,orcancelled.SAEinvitesyourwrittencommentsandsuggestions.Copyright©2011SAEInternationalAllrightsreserved.Nopartofthispublicationmaybereproduced,storedinaretrievalsystemortransmitted,inanyformorbyanymeans,electronic,mechanical,photocopying,recording,orotherwise,withoutthepriorwrittenpermissionofSAE.TOPLACEADOCUMENTORDER:Tel:877-606-7323(insideUSAandCanada)Tel:+1724-776-4970(outsideUSA)Fax:724-776-0790Email:CustomerService@sae.orgSAEWEBADDRESS:://(7085-T7452)SolutionHeatTreated,CompressionStress-Relieved,andOveraged(CompositionsimilartoUNSA97085)RATIONALEThisdocumenthasbeenreaffirmedtocomplywiththeSAEfive-yearreviewpolicy.1.SCOPE1.1FormThisspecificationcoversanaluminumalloyintheformofdieforgings12inches(305mm)andunderinnominalthicknessandofforgingstock.1.2ApplicationTheseforgingshavebeenusedtypicallyformachinedstructuralpartssubjecttowarpageduringmachiningandrequiringhighstrengthandresistancetostress-corrosioncracking,butusageisnotlimitedtosuchapplication.2.APPLICABLEDOCUMENTSTheissueofthefollowingdocumentsineffectonthedateofthepurchaseorderformsapartofthisspecificationtotheextentspecifiedherein.Thesuppliermayworktoasubsequentrevisionofadocumentunlessaspecificdocumentissueisspecified.Whenthereferenceddocumenthasbeencancelledandnosupersedingdocumenthasbeenspecified,thelastpublishedissueofthatdocumentshallapply.2.1SAEPublicationsAvailablefromSAEInternational,400CommonwealthDrive,Warrendale,PA15096-0001,Tel:877-606-7323(insideUSAandCanada)or724-776-4970(outsideUSA),=Boeing/5910770006,User=hanxiang,leeNotforResale,10/18/201322:26:02MDTNoreproductionornetworkingpermittedwithoutlicensefromIHS--```,,`,`,``,,`,`,``,,,,,````,,-`-`,,`,,`,`,,`---SAEAMS4403Page2of72.2ASTMPublicationsAvailablefromASTMInternational,100BarrHarborDrive,P.O.BoxC700,WestConshohocken,PA19428-2959,Tel:610-832-9585,:212-642-4900,(Metric)3.TECHNICALREQUIREMENTS3.1CompositionShallconformtothepercentagesbyweightshowninTable1,determinedinaccordancewithAMS2355.TABLE1-COMPOSITIONElementminmaxSilicon--0.06Iron--0.08Copper1.32.0Manganese--0.04Magnesium1.21.8Chromium--0.04Zinc7.08.0Titanium--0.06Zirconium0.080.15OtherElements,each--0.05OtherElements,total--0.15Aluminumremainder3.2Condition3.2.1DieForgingsSolutionheattreatedinaccordancewithAMS2772,stress-relievedbycompressingtoproducea1to5%permanentset,andoveragedtotheT7452temper(SeeAS1990).Solutionheat-treatandartificialagepracticesareproprietary.3.2.2ForgingStockAsorderedbytheforgingmanufacturerandshallcomplywiththecompositionrequirementsofTable1.Materialshallbefreeofconditionsthataredetrimentaltothefinishedproduct.3.3PropertiesTheproductshallconformtothefollowingrequirements,determinedinaccordancewithAMS2355onthemillproducedsize.CopyrightSAEInternationalProvidedbyIHSunderlicensewithSAELicensee=Boeing/5910770006,User=hanxiang,leeNotforResale,10/18/201322:26:02MDTNoreproductionornetworkingpermittedwithoutlicensefromIHS--```,,`,`,``,,`,`,``,,,,,````,,-`-`,,`,,`,`,,`---SAEAMS4403Page3of73.3.1DieForgings3.3.1.1TensilePropertiesShallbeasfollows:3.3.1.1.1WithGrainFlow(Longitudinal)Specimens,machinedfromforgingsorfromprolongationsonsuchforgings,withaxisofspecimeninareaofgagelengthvaryingnotmorethan15degreesfromparalleltotheforgingflowlines,shallhavethepropertiesshowninTable2.TABLE2A-MINIMUMTENSILEPROPERTIES,INCH/POUNDUNITSNominalThickne