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ASTM B392-09e1

Historical Revision

Standard Specification for Niobium and Niobium Alloy Bar, Rod, and Wire (Withdrawn 2018)

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1.1 This specification covers four grades of wrought niobium and niobium alloy bar, rod, and wire as follows:

1.1.1 R04200-Type 1Reactor grade unalloyed niobium,

1.1.2 R04210-Type 2Commercial grade unalloyed niobium,

1.1.3 R04251-Type 3Reactor grade niobium alloy containing 1 % zirconium, and

1.1.4 R04261-Type 4Commercial grade niobium alloy containing 1 % zirconium.

1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.3 The following precautionary caveat pertains only to the test methods portion of this specification. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

This specification covers four grades of wrought niobium and niobium alloy bar, rod, and wire as R04200-Type 1, reactor grade unalloyed niobium; R04210-Type 2, commercial grade unalloyed niobium; R04251-Type 3, reactor grade niobium alloy containing 1 % zirconium; and R04261-Type 4, commercial grade niobium alloy containing 1 % zirconium. The chemical; and mechanical properties requirements, such as Brinell hardness, tensile strength, yield strength, and elongations; as well as the temper designations are detailed.


For the purposes of determining compliance with the specified limits for requirements of the properties listed in this specification, an observed value or a calculated value shall be rounded as indicated in accordance with the rounding method of Practice E29.

SDO ASTM: ASTM International
Document Number B392
Publication Date Oct. 1, 2009
Language en - English
Page Count 4
Revision Level 09e1
Supercedes
Committee B10.03
Publish Date Document Id Type View
April 1, 2018 B0392-18 Revision
Oct. 1, 2009 B0392-09E01 Revision
Oct. 1, 2009 B0392-09 Revision
Sept. 10, 2003 B0392-03 Revision
Dec. 10, 1999 B0392-99 Revision