ASTM B 393 : 2009 : EDT 1
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Hardcopy , PDF
01-18-2018
English
10-01-2009
CONTAINED IN VOL. 02.04, 2018 Defines five grades of wrought niobium and niobium alloy strip, sheet, and plate as follows: - R04200-Type 1 - Reactor grade unalloyed niobium, - R04210-Type 2 - Commercial grade unalloyed niobium, - R04251-Type 3 - Reactor grade niobium alloy containing 1% zirconium, - R04261-Type 4 - Commercial grade niobium alloy containing 1% zirconium, and. - R04220-Type 5 - RRR grade pure niobium.
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