Designation:F961−14StandardSpecificationfor35Cobalt-35Nickel-20Chromium-10MolybdenumAlloyForgingsforSurgicalImplants(UNSR30035)1ThisstandardisissuedunderthefixeddesignationF961;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thisspecificationcoverstherequirementsfor35cobalt-35nickel-20chromium-10molybdenumalloy(UNSR30035)intheformofforgings,usedforthemanufactureofsurgicalimplants.1.2Units—ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnoncon-formancewiththestandard.2.ReferencedDocuments2.1ASTMStandards:2A751TestMethods,Practices,andTerminologyforChemi-calAnalysisofSteelProductsE8/E8MTestMethodsforTensionTestingofMetallicMa-terialsE10TestMethodforBrinellHardnessofMetallicMaterialsE18TestMethodsforRockwellHardnessofMetallicMa-terialsE29PracticeforUsingSignificantDigitsinTestDatatoDetermineConformancewithSpecificationsE92TestMethodforVickersHardnessofMetallicMaterials(Withdrawn2010)3E112TestMethodsforDeterminingAverageGrainSizeE140HardnessConversionTablesforMetalsRelationshipAmongBrinellHardness,VickersHardness,RockwellHardness,SuperficialHardness,KnoopHardness,Sclero-scopeHardness,andLeebHardnessE165PracticeforLiquidPenetrantExaminationforGeneralIndustryE354TestMethodsforChemicalAnalysisofHigh-Temperature,Electrical,Magnetic,andOtherSimilarIron,Nickel,andCobaltAlloysF562SpecificationforWrought35Cobalt-35Nickel-20Chromium-10MolybdenumAlloyforSurgicalImplantApplications(UNSR30035)F601PracticeforFluorescentPenetrantInspectionofMe-tallicSurgicalImplantsF688SpecificationforWroughtCobalt-35Nickel-20Chromium-10MolybdenumAlloyPlate,Sheet,andFoilforSurgicalImplants(UNSR3003...