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ASTM B394-99

Historical Revision

Standard Specification for Niobium and Niobium Alloy Seamless and Welded Tubes (Withdrawn 2018)

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1.1 This specification covers wrought niobium and niobium alloy seamless and welded tubes as follows:

Note-Committee B-10 has adopted "niobium" as the designation for Element No. 41, formerly named "columbium."

1.1.1 R04200-Type 1 -Reactor grade unalloyed niobium,

1.1.2 R04210-Type 2 -Commercial grade unalloyed niobium,

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

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

1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.

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.


SDO ASTM: ASTM International
Document Number B394
Publication Date Nov. 10, 1999
Language en - English
Page Count 4
Revision Level 99
Supercedes
Committee B10.03
Publish Date Document Id Type View
April 1, 2018 B0394-18 Revision
Oct. 1, 2009 B0394-09E01 Revision
Oct. 1, 2009 B0394-09 Revision
Sept. 10, 2003 B0394-03 Revision
Nov. 10, 1999 B0394-99 Revision