1、Designation: B364 18Standard Specification forTantalum and Tantalum Alloy Ingots1This standard is issued under the fixed designation B364; 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 paren
2、theses 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 and alloyed tanta-lum ingots prepared by vacuum-arc melting, electron-beammelting, or powder-metallurgy consolidat
3、ion to produce con-solidated metal for processing to various mill shapes.1.2 The materials covered by this specification are:1.2.1 R05200, unalloyed tantalum, electron-beam furnaceor vacuum-arc melt, or both,1.2.2 R05400, unalloyed tantalum, powder-metallurgyconsolidation,1.2.3 R05255, tantalum allo
4、y, 90 % tantalum 10 % tungsten,electron-beam furnace or vacuum-arc melt, or both,1.2.4 R05252, tantalum alloy, 97.5 % tantalum 2.5 %tungsten, electron-beam furnace or vacuum-arc melt, or both,and,1.2.5 R05240 tantalum alloy, 60 % tantalum 40 %columbium, electron-beam furnace or vacuum-arc melt, orbo
5、th.1.3 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers
6、 to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2E29 Practice for Using Significant Digits in Test Data toDetermine Conformance with Specifications3. Ordering Information3.1 Orders for material under this specification shall includethe following information as applicable:3.1.1 Ty
7、pe (see 1.2),3.1.2 Quantity in weight or pieces,3.1.3 Size, diameter, and length,3.1.4 Method of manufacture (Section 4),3.1.5 ASTM designation, and3.1.6 Additions to the specification and supplementary re-quirements if required.4. Materials and Manufacture4.1 The ingot metal for Type R05200 (unallo
8、yed tantalum),for Type R05255 (90 % tantalum 10 % tungsten alloy), TypeR05252 (97.5 % tantalum 2.5 % tungsten), and Type R05240(60 % tantalum 40 % columbium) may be vacuum-arc melted,electron-beam furnace melted, or a combination of these twomethods. The metal for Type R05400 is defined as powder-me
9、tallurgy consolidation unalloyed tantalum.5. Chemical Composition5.1 The material shall conform to the requirements forchemical composition in accordance with Table 1.5.1.1 Analysis for elements not listed in Table 1 and notnormally expected in tantalum shall not be required unlessspecified at time
10、of purchase.5.2 In the event of dispute over conformity of the material tothis specification, upon agreement between the purchaser andthe seller as to procedure, representative samples of thematerial may be submitted to a referee for analysis.6. Permissible Variation6.1 QuantityThe permissible overs
11、hipment shall be nego-tiated between the purchaser and the manufacturer.7. Workmanship, Finish, and Appearance7.1 The manufacturer shall use care to have each lot of ingotmaterial as uniform in quality as possible.7.2 When specified, the ingots shall be conditioned on thesurface to standards agreed
12、upon between the manufacturer andthe purchaser.7.3 In the conditioned ingot, no abrupt change in diameteror local depressions that will impair subsequent fabrication willbe permitted. The difference between maximum and minimumradius of the conditioned ingot shall not exceed 20 % of themaximum radius
13、.1This specification is under the jurisdiction of ASTM Committee B10 onReactive and Refractory Metals and Alloys and is the direct responsibility ofSubcommittee B10.03 on Niobium and Tantalum.Current edition approved April 1, 2018. Published May 2018. Originallyapproved in 1961. Last previous editio
14、n approved in 2009 as B364 96 (2009)which was withdrawn January 2018 and reinstated in April 2018. DOI: 10.1520/B0364-18.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refe
15、r 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 StatesThis international standard was developed in accordance with internationally recognized principles on standardization establish
16、ed in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.17.4 Each ingot shall be tested for soundness by nondestruc-tive test methods, such as dye penetrant and ultra
17、sonic tests.Methods and acceptance standards shall be as mutually agreedupon between the purchaser and the manufacturer.7.5 Defects in the ingots that exceed the acceptance stan-dards shall be removed by cropping or surface conditioning,whichever is appropriate. The manufacturer shall be permittedto
18、 remove surface imperfections provided that after eachremoval the requirements of conditioning are met (see 7.3).7.6 The ingots shall be free of imperfections that would bedeemed injurious by the standards of acceptability agreed uponbetween the purchaser and the manufacturer.8. Significance of Nume
19、rical Limits8.1 For the purpose of determining compliance with thespecified limit for requirements of the properties listed in thetables, an observed value or a calculated value shall be roundedas indicated in accordance with the rounding method ofPractice E29.9. Sampling9.1 Care shall be exercised
20、to ensure that the sampleselected for testing is representative of the material and that itis not contaminated by the sampling procedure. If there is anyquestion relating to the sampling techniques or to the analysisthereof, the methods for sampling and analysis shall be asagreed upon between the pu
21、rchaser and the manufacturer.10. Rejection and Rehearing10.1 Material that fails to conform to the requirements ofthis specification may be rejected. Rejection should be reportedto the producer or supplier promptly and in writing. In case ofdissatisfaction with the results of the test, the producer
22、orsupplier may make claim for a rehearing.11. Referee11.1 In the event of disagreement between the manufacturerand the purchaser on the conformance of the material to therequirements of this specification or any special test specifiedby the purchaser, a mutually acceptable referee shall performthe t
23、ests in question. The results of the referees testing shall beused in determining the conformance of the material to thisspecification.12. Certification12.1 When specified in the purchase order or contract, aproducers or suppliers certificate shall be furnished to thepurchaser that the material was
24、manufactured, sampled, tested,and inspected in accordance with the specification and has beenfound to meet the requirements. When specified in the pur-chase order or contract, a report of the test results shall befurnished.13. Packaging and Package Marking13.1 Each ingot shall be marked for identifi
25、cation by metaldie stamping the manufacturers ingot number on the top of theingot. Each box or skid shall be marked or tabbed legibly andconspicuously with the number, type of material, ingotnumber(s), manufacturers identification, nominal size, and thegross, net, and tare weights.13.2 Unless otherw
26、ise specified, material purchased underthis specification must be boxed or banded on skids in such amanner as to secure safe delivery to its destination whenproperly transported by any common carrier.14. Keywords14.1 chemistry; mechanical properties; tantalum; tantalumalloyTABLE 1 Chemical Requireme
27、ntsElementContent, max, weight %Electron-Beam Cast(R05200) Vacuum-Arc Cast (R05200)Unalloyed TantalumSintered (R05400)Unalloyed TantalumElectron-Beam Cast(R05255) Vacuum-ArcCast (R05255) 90 %Tantalum 10 %TungstenElectron-Beam Cast(R05252) Vacuum-ArcCast (R05252) 97.5 %Tantalum 2.5 %TungstenElectron-
28、Beam Cast(R05240) Vacuum-ArcCast (R05240) 60 %Tantalum 40 %ColumbiumC 0.010 0.010 0.010 0.010 0.010O 0.015 0.03 0.015 0.015 0.020N 0.010 0.010 0.010 0.010 0.010H 0.0015 0.0015 0.0015 0.0015 0.0015Nb 0.10 0.10 0.10 0.50 34.040.0Fe 0.010 0.010 0.010 0.010 0.010Ti 0.010 0.010 0.010 0.010 0.010W 0.050 0
29、.050 9.011.0 2.03.5 0.50Mo 0.020 0.020 0.020 0.020 0.020Si 0.005 0.005 0.005 0.005 0.005Ni 0.010 0.010 0.010 0.010 0.010Ta remainder remainder remainder remainder remainderB364 182ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item m
30、entionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committ
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32、ing of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, P
33、O Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 183
