Standard Specification for Niobium and Niobium Alloy Bar, Rod, and Wire
STANDARD published on 1.7.2026
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Designation standards: ASTM B392-26
Publication date standards: 1.7.2026
The number of pages: 4
Approximate weight : 12 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM
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.
Keywords:
niobium, niobium alloy, niobium bar, niobium rod, niobium wire,, ICS Number Code 77.150.99 (Other products of non-ferrous metals)