Designation:B955/B955M−14StandardSpecificationforAluminum-AlloyCentrifugalCastings1ThisstandardisissuedunderthefixeddesignationB955/B955M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thisspecificationcoversaluminum-alloycentrifugalcastingsdesignatedasshowninTable1.1.2Thisspecificationisnotintendedforaluminum-alloycentrifugalcastingsusedinaerospaceapplications.1.3AlloyandtemperdesignationsareinaccordancewithANSIH35.1/H35.1(M).TheequivalentunifiednumberingsystemalloydesignationsareinaccordancewithPracticeE527.1.4Unlesstheorderspecifiesthe“M”specificationdesignation,thematerialshallbefurnishedtotheinch-poundunits.1.5Foracceptancecriteriaforinclusionofnewaluminumandaluminumalloysandtheirpropertiesinthisspecification,seeAnnexA1andAnnexA2.1.6Units—ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationpriortouse.2.ReferencedDocuments2.1Thefollowingdocumentsoftheissueineffectonthedateofcastingpurchaseformapartofthisspecificationtotheextentreferencedherein:2.2ASTMStandards:2B179SpecificationforAluminumAlloysinIngotandMol-tenFormsforCastingsfromAllCastingProcessesB275PracticeforCodificationofCertainZinc,TinandLeadDieCastingsB557TestMethodsforTensionTestingWroughtandCastAluminum-andMagnesium-AlloyProductsB557MTestMethodsforTensionTestingWroughtandCastAluminum-andMagnesium-AlloyProducts(Metric)B660PracticesforPackaging/P...
