Designation:F90−14StandardSpecificationforWroughtCobalt-20Chromium-15Tungsten-10NickelAlloyforSurgicalImplantApplications(UNSR30605)1ThisstandardisissuedunderthefixeddesignationF90;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thisspecificationcoverstherequirementsforwroughtcobalt-20chromium-15tungsten-10nickelalloyusedforsurgi-calimplants.Thepropertiesspecifiedapplyspecificallytowroughtbar,rod,wire,sheet,andstrip,butdonotapplytosurgicalfixationwire(seeSpecificationF1091).1.2TheSIunitsinthisstandardaretheprimaryunits.ValuesinprimarySIorsecondaryinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;thereforeeachsystemshallbeusedindependentoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththespecification.2.ReferencedDocuments2.1ASTMStandards:2A751TestMethods,Practices,andTerminologyforChemi-calAnalysisofSteelProductsE8/E8MTestMethodsforTensionTestingofMetallicMa-terialsE29PracticeforUsingSignificantDigitsinTestDatatoDetermineConformancewithSpecificationsE45TestMethodsforDeterminingtheInclusionContentofSteelE354TestMethodsforChemicalAnalysisofHigh-Temperature,Electrical,Magnetic,andOtherSimilarIron,Nickel,andCobaltAlloysF981PracticeforAssessmentofCompatibilityofBiomate-rialsforSurgicalImplantswithRespecttoEffectofMaterialsonMuscleandBoneF1091SpecificationforWroughtCobalt-20Chromium-15Tungsten-10NickelAlloySurgicalFixationWire(UNSR30605)F2527SpecificationforWroughtSeamlessandWeldedandDrawnCobaltAlloySmallDiameterTubingforSurgicalImplants(UNSR30003,UNSR30008,UNSR30035,UNSR30605,andUNSR31537)IEEE/ASTMSI10AmericanNationalStandardforUseoftheInternationalSystemofUnits(SI):TheModernMetricSystem2.2AerospaceMaterialSpecification:3AMS2269ChemicalCheckAnalysisLimits,WroughtNickelAlloysa...
