ASTM_B_387_-_10.pdf

Designation:B38710Standard Specification forMolybdenum and Molybdenum Alloy Bar,Rod,and Wire1This standard is issued under the fixed designation B387;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers unalloyed molybdenum andmolybdenum alloy bar,rod,and wire as follows:1.1.1 Molybdenum 360Unalloyed vacuum arc-cast mo-lybdenum.1.1.2 Molybdenum 361Unalloyed powder metallurgy mo-lybdenum.1.1.3 Molybdenum Alloy 363Vacuum arc-cast molybde-num0.5%titanium0.1%zirconium(TZM)alloy.1.1.4 Molybdenum Alloy 364Powder metallurgy molyb-denum0.5%titanium0.1%zirconium(TZM)alloy.1.1.5 Molybdenum365Unalloyedvacuumarc-castmolybdenum,low carbon.1.1.6 MolybdenumAlloy366Vacuumarc-castmolybdenum,30%tungsten alloy.1.2 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.3 The following precautionary caveat pertains only to thetest method portions of this specification:This standard doesnot purport to address all of the safety concern,if any,associated with its use.It is the responsibility of the user of thisstandard to establish appropriate safety and health practicesand determine the applicability of regulatory limitations priorto use.2.Referenced Documents2.1 ASTM Standards:2E8 Test Methods for Tension Testing of Metallic MaterialsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE2626 Guide for Spectrometric Analysis of Reactive andRefractory MetalsF289 Specification for Molybdenum Wire and Rod forElectronic Applications3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 bar and rod,nany straight product with a round,rectangular,hexagonal,or octagonal solid cross section,4 in.(101.6 mm)in diameter or less,or of equivalent cross-sectionalarea.3.1.2 wire,nany product furnished in coils or on spools orreels.NOTE1This specification covers wire no smaller than 0.020 in.(0.51mm)in diameter or of equivalent cross-sectional area.Specification F289covers diameters up to 0.020 in.(0.51 mm).4.Ordering Information4.1 Orders for material under this specification shall includethe following information as applicable:4.1.1 Material number and temper designation(Section 1and Table 3),4.1.2 Product form(Section 3),4.1.3 Chemical requirements(Table 1 and Table 2),4.1.4 Metallurgical condition(Section 7),4.1.5 Mechanical requirements(Section 8),4.1.6 Thermal stability(Section 9),4.1.7 Tolerances(Section 10 and Section 11 and Table 4),4.1.8 Workmanship and quality level requirements(Section12),4.1.9 Disposition of rejected material(Section 14),4.1.10 Certification and reports(Section 15),4.1.11 Marking(Section 16),and4.1.12 Packaging(Section 17).5.Materials and Manufacture5.1 The various molybdenum mill products covered by thisspecification shall be manufactured with the conventionalextrusion,forging,swaging,rolling,and drawing equipmentnormally found in primary ferrous and nonferrous plants.Theingot metal for Molybdenum 360 and 365 and MolybdenumAlloys 363 and 366 is vacuum arc-melted in furnaces of a typesuitable for reactive,refractory metals.For Molybdenum 361and 364 the metal is consolidated by powder metallurgymethods.1This specification is under the jurisdiction of ASTM Committee B10 onReactive and Refractory Metals and Alloys and is the direct responsibility ofSubcommittee B10.04 on Molybdenum and Tungsten.Current edition approved June 1,2010.Published July 2010.Originally approvedin 1962.Last previous edition approved in 2001 as B387-90(2001)which waswithdrawn January 2010 and reinstated in June 2010.DOI:10.1520/B0387-10.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 6.Chemical Composition6.1 The molybdenum and molybdenum alloy ingots andbillets for conversion to finished products covered by thisspecification shall conform to the requirements of the chemicalcomposition prescribed in Table 1.6.2 Heat Analysis:6.2.1 Heat analysis is made by the manufacturer of the metalon a representative sample of powder from a single powderblend in the case of material made from pressed and sinteredpowder billets,or on a representative sample of a cast ingot orintermediate product from that ingot in the case of materialmade from cast ingot.6.2.2 Heat analysis shall be as specified in Table 1.6.2.3 The manufacturer shall not ship material that isoutside the limits specifie