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1、美国标准-钛及钛合金,棒和丝材(英文)StandardSpecificationforTantalumandTantalumAlloyRodandWireThisstandardisissuedunderthefixeddesignationB365;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatest
2、heyearoflastreaproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1 Thisspecificationcoversunalloyedandalloyedtantalumrodandwire.1.2 Thematerialscoveredbythisspecificationare:1.2.1 R05200,unalloyedtantalum,electron-beamfurnace
3、orvacuum-arcmelt,orboth,1.2.2 R05400,unalloyedtantalum,powder-metallurgyconsolidation,1.2.3 R05255,tantalumalloy,90%tantalum10%tungsten,electron-beamfurnaceorvacuum-arcmeal,orboth,1.2.4 R05252,tantalumalloy97.5%tantalum2.5%tungsten,electron-beamfurnaceorvacuum
4、-arcmelt,orboth,1.2.5 R05240tantalumalloy,60%tantalum40%columbium,electron-beamfurnaceorvacuum-arcmelt,orboth.1.3 Thevaluesstatedininch-pounduntiesaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.4 Thefollowingprecautionarycaveatpertainson
5、lytothetestmethodsportion,Section13,ofthisspecification:Thisstandarddoesnotpurporttoaddressallofthesafetyproblems,ifany,associatedwithitsuse,Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitat
6、ionspriortouse.2.ReferencedDocuments2.1ASTMStandards:B364SpecificationforTantalumandTantalumAlloyIngotsE8TestMethodsforTensionTestingofMetallicMaterialsE29PracticeforUsingSignificantDigitsinTestDatatoDetermineConformancewithSpecifications3.Terminology3.1DescriptionsofTermsSpeci
7、fictoThisStandard:3.1.1lot–allmaterialproducedfromthesameingotorasinglepowderblendatonetime,withthesamecrosssectionandwiththesamenominalmetallurgicalparameters.3.1.2rod-material0.125to2.5in.(3.18to63.50mm)indiameterinround,hexagonal,oroctagonalcrosssectionsuppliedinstraightleng
8、ths.3.1.3wire-material0.010to0.124in.(0.254to3.15mm)in
