1、Designation:B654/B654M10Standard Specification forNiobium-Hafnium Alloy Foil,Sheet,Strip,and Plate1This standard is issued under the fixed designation B654/B654M;the number immediately following the designation indicates the yearof original adoption or,in the case of revision,the year of last revisi
2、on.A number in parentheses indicates the year of last reapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers hafnium alloyed niobium foil,sheet,strip,and plate.1.2 The material covered by this specification is R04295
3、,niobium-base alloy containing approximately 10%hafniumand 1%titanium.1.3 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used independently of the other.Combi
4、ningvalues from the two systems may result in non-conformancewith the standard.1.4 The following safety hazards caveat pertains only to thetest methods portion,Section 14,of this specification:Thisstandard does not purport to address all of the safety problems,if any,associated with its use.It is th
5、e responsibility of the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.2.Referenced Documents2.1 ASTM Standards:2B652/B652M Specification for Niobium-Hafnium Alloy In-gotsE8 Test Methods for Tension Tes
6、ting of Metallic MaterialsE21 Test Methods for Elevated Temperature Tension Tests ofMetallic MaterialsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE2626 Guide for Spectrometric Analysis of Reactive andRefractory Metals3.Terminology3.1 Definitions:
7、3.1.1 foil,na flat product less than 6 in.150 mm wideand less than 0.005 in.0.13 mm in thickness.3.1.2 lot,na lot is defined as that material produced fromone ingot and heat-treated at the same conditions.Unlessotherwise agreed between manufacturer and purchaser,a lotshall be limited to the product
8、of an 8 h period for finalcontinuous anneal or to a single furnace load for a final batchanneal3.1.3 plate,na flat product 6 in.150 mm or more inwidth and more than 0.187 in.4.8 mm in thickness.3.1.4 sheet,na flat product 6 in.150 mm or more inwidth and from 0.005 in.0.13 mm to 0.187 in.4.8 mm inthi
9、ckness.3.1.5 strip,na flat product,may be supplied in coil,lessthan 6 in.150 mm wide and from 0.005 in.0.13 mm to0.187 in.4.8 mm in thickness.4.Ordering Information4.1 Orders for material under this specification shouldinclude the following information as applicable:4.1.1 General alloy description(s
10、ee 1.2)and ASTM desig-nation and year of issue,4.1.2 Quantity in weight or pieces,4.1.3 Size,diameter or thickness,width,and length,asapplicable,4.1.4 Chemical Composition(Section 6),4.1.5 Temper(Section 7),4.1.6 Mechanical test temperature and limits(Sections 8and 14),4.1.7 Permissible dimensional
11、tolerances and weight orquantity variations(see 9.3),4.1.8Quality and finish(see 10.2),4.1.9 Sampling(see 13.2),4.1.10 Inspection Witnessing(see 15.2),4.1.11 Certification Requirements(Section 18),and4.1.12 Packaging(Section 20).5.Materials and Manufacture5.1 Materials covered by this specification
12、shall be madefrom ingots in accordance with Specification B652/B652M.1This specification is under the jurisdiction of Committee B10 on Reactive andRefractory Metals and Alloys and is the direct responsibility of SubcommitteeB10.03 on Niobium and Tantalum.Current edition approved May 1,2010.Published
13、 June 2010.Originallyapproved in 1979.Last previous edition approved in 2004 as B654 04.DOI:10.1520/B0654_B0654M-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 s
14、tandards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 5.2 The various niobium-hafnium alloy products covered bythis specification are formed with the conventional extrusion,forging,and rolling e
15、quipment normally available in metalworking plants.6.Chemical Composition6.1 The chemical composition of niobium-hafnium alloyingots and billets for conversion to finished products coveredby this specification shall conform to the requirements in Table1.Analysis for elements,not listed in Table 1 an
16、d not normallyexpected in niobium-hafnium alloy,shall not be requiredunless specified at time of purchase.6.2 The manufacturers ingot analysis shall be consideredthe chemical analysis for products supplied under this specifi-cation.6.3 When specified in the purchase order,the manufacturershall test the product for elements specified in Table 2.Theresults of the tests shall meet the limits shown in Table 2.7.Temper Designations7.1 Unless otherwise stated,the materials supplied underthis specifica
