ASTM B 392 RO4210
99.95% purity
Nb1,Nb2
Specification: Diameter: 3-100mm Length: 2000mm (max)
ASTM B 392 RO4210
99.95% purity
Nb1,Nb2
Specification: Diameter: 3-100mm Length: 2000mm (max)
Niobium rod/bar
Material: RO4200-1, RO4210-2A
Size: Dia3~100mm
Standard: ASTM B392-98
Purity: ≥99.9% or 99.95%
Table.1 Chemical composition:
Chemistry % | |||||||||||||
Designation | Chief component | Impurities maxmium | |||||||||||
Nb | Fe | Si | Ni | W | Mo | Ti | Ta | O | C | H | N | ||
Nb1 | Remainder | 0.004 | 0.003 | 0.002 | 0.004 | 0.004 | 0.002 | 0.07 | 0.015 | 0.004 | 0.0015 | 0.002 | |
Nb2 | Remainder | 0.02 | 0.02 | 0.005 | 0.02 | 0.02 | 0.005 | 0.15 | 0.03 | 0.01 | 0.0015 | 0.01 | |
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Table 2. Mechanical requirements (annealed condition)
Grade | Tensile strength δbpsi (MPa), ≥ | Yield strength δ0.2, psi (MPa),≥ | Elongation in 1"/2" gage length, %, ≥ |
RO4200-1 RO4210-2 | 18000 (125) | 12000 (85) | 25
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Special requirements to be agreed on by the supplier and buyer of negotiation
