1.1 This specification covers unalloyed and alloyed tantalum ingots prepared by vacuum-arc melting, electron-beam melting, or powder-metallurgy consolidation to produce consolidated metal for processing to various mill shapes.
1.2 The materials covered by this specification are:
1.2.1 R05200, unalloyed tantalum, electron-beam furnace or vacuum-arc melt, or both,
1.2.2 R05400, unalloyed tantalum, powder-metallurgy consolidation,
1.2.3 R05255, tantalum alloy, 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, or both.
1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
chemistry; mechanical properties; tantalum; tantalum alloy; Tantalum (Ta)/tantalum alloys--specifications; Ingots; UNS R05200 (Ta, unalloyed, cast); UNS R05252 (97.5 Ta-2.5W); UNS R05255 (90Ta-10W); UNS R05400 (Ta, unalloyed, sintered);
ASTM International is a member of CrossRef.
Citing ASTM Standards
[Back to Top]