NONDESTRUCTIVERAPIDIDENTIFICATIONOFMETALSANDALLOYSBYSPOTTESTReprintedwiththepermissionofLangleyResearchCenter,NASA.ASTMSPECIALTECHNICALPUBLICATION55004-550000-24AMERICANSOCIETYFORTESTINGANDMATERIALS1916RaceStreet,Philadelphia,Pa.19103CopyrightbyASTMInt'l(allrightsreserved);FriJan112:31:46EST2016Downloaded/printedbyUniversityofWashington(UniversityofWashington)pursuanttoLicenseAgreement.NofurtherreprodLibraryofCongressCatalogCardNumber:73-90275ISBN0-8031-0528-2NOTETheSocietyisnotresponsible,asabody,forthestatementsandopinionsadvancedinthispublication.SecondPrinting,Mars,Pa.February1986CopyrightbyASTMInt'l(allrightsreserved);FriJan112:31:46EST2016Downloaded/printedbyUniversityofWashington(UniversityofWashington)pursuanttoLicenseAgreement.Nofurtherreproductionsauthorized.ContentsIntroduction1TestTechniquesandPrecautions3Charts,IdentificationofMetalsandAlloys5ProceduresforDeterminingtheAlloysinLowAlloySteels27ProceduresforDeterminingtheAlloysinToolSteels28ProceduresforDeterminingtheAlloysinNickel-Chromium-IronMetals29ProceduresforDeterminingtheAlloysinAluminumandAluminumAlloys32ProceduresforDeterminingtheAlloysinCopperandCopperAlloys33ProceduresforDeterminingtheAlloysinMagnesiumandMagnesiumAlloys38ProceduresforDeterminingtheMetalsinTitaniumandTitaniumAlloys39ProceduresforDeterminingPureMetals42ConcludingRemarks43Appendixes45References52Index53CopyrightbyASTMInt'l(allrightsreserved);FriJan112:31:46EST2016Downloaded/printedbyUniversityofWashington(UniversityofWashington)pursuanttoLicenseAgreement.Nofurtherreproductionsauthorized.STP550-EB/Feb.1986IntroductionQualityassurancerequirementsattheLangleyResearchCenterhavegiventheimpetusfortheinvestigationanddevelopmentofareliablesystemofrapididentificationofmetalsandalloys.EarlyintheinvestigationitbecameevidentthatthepublishedexistingsystemswereinadequatetomeettherequirementsattheLangleyResearchCenter.Toassurequalityfabricationofhardwareandmaximumsafetytoper-sonnel,itisnecessarytoidentifyorverifythevariousmetalsandalloysinvo...