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1、SURFACEREV.J1268MAY95VEHICLESTANDARDIssued1980-06400CommonwealthDrive,Warrendale,PA15096-0001Revised1995-05SupersedingJ1268JUN93AnAmericanNationalStandardHARDENABILITYBANDSFORCARBONANDALLOYHSTEELSForeword—ThisDocumenthasnotchangedotherthantoputitintothenewSAETechnicalStandardsBoardF
2、ormat1.Scope—AllcarbonandalloyH-bandsteelsareshown,alongwiththeircorrespondingminimumandmaximumhardenabilitylimits,forwhichsufficienthardenabilitydatahavebeenestablishedandforgradeswhichusethestandardend-quenchtest.Ashardenabilitydataareaccumulatedforothergrades,thisSAEStandardwillb
3、erevisedtoincludesuchgrades.2.References2.1ApplicablePublications—Thefollowingpublicationsformapartofthespecificationtotheextentspecifiedherein.UnlessotherwiseindicatedthelatestrevisionofSAEpublicationsshallapply.2.1.1SAEPUBLICATIONS—AvailablefromSAE,400CommonwealthDrive,Warrendale,
4、PA15096-0001.SAEJ403—ChemicalCompositionsofSAECarbonSteelsSAEJ404—ChemicalCompositionsofSAEAlloySteelsSAEJ406—MethodsofDeterminingHardenabilityofSteelsSAEJ409—ProductAnalysis—PermissibleVariationsfromSpecifiedChemicalAnalysisofaHeatorCastofSteelSAEJ418—GrainSizeDeterminationofSteels
5、SAEJ1868—RestrictedHardenabilityBandsforSelectedAlloySteels2.2RelatedPublication—Thefollowingpublicationisprovidedforinformationpurposesonlyandisnotarequiredpartofthisdocument.2.2.1ASTMPUBLICATION—AvailablefromASTM,100BarrHarborDrive,WestConshohocken,PA19428-2959.ASTMA304—SteelBars,
6、Alloy,SubjecttoEnd-QuenchHardenabilityRequirementsSAETechnicalStandardsBoardRulesprovidethat:“ThisreportispublishedbySAEtoadvancethestateoftechnicalandengineeringsciences.Theuseofthisreportisentirelyvoluntary,anditsapplicabilityandsuitabilityforanyparticularuse,includinganypatentinf
7、ringementarisingtherefrom,isthesoleresponsibilityoftheuser.”SAEreviewseachtechnicalreportatleasteveryfiveyearsatwhichtimeitmaybereaffirmed,revised,orcancelled.SAEinvitesyourwrittencommentsandsuggestions.QUESTIONSREGARDINGTHISDOCUMENT:(412)772-8512FAX:(412)776-0243TOPLACEADOCUMENTORD
8、ER;(412)776-4970FAX
