min 99.95% high purity niobium round bars
USD $220 - $370 /Kilogram
Min.Order:5 Kilograms
Baoji City Hengxin Rare Metal Co., Ltd.
1.Material: RO4200-1, RO4210-2
2.Size: 4~100mm
3.Standard: As per ASTM B392-98
4.Purity: >=99.9% or 99.95%
5. Grade: Nb1,Nb2
6 Characteristic:
Melting Point: 2468°C
Boiling Point :4742°C
Density: 8.57g/cm3
7. Certificate: ISO9001
8. Product Feature: High melting point, High-density, high temperature oxidation resistance, long service life, resistance to corrosion..
9.Application:widely used for steel, ceramics, electronics, nuclear energy industries and superconductor technology.
Chemical Element (weight %, max.) | ||||||||||||||
UNS | Type | C | O | N | H | Ta | Fe | Ti | W | Mo | Si | Ni | Zr | Nb |
R04210 | Pure | 0.004 | 0.015 | 0.003 | 0.0015 | 0.05 | 0.004 | 0.002 | 0.005 | 0.005 | 0.004 | 0.002 | / | Bal. |
R04261 | Nb-Zr | 0.004 | 0.015 | 0.003 | 0.0015 | 0.05 | 0.004 | 0.002 | 0.005 | 0.005 | 0.004 | 0.002 | 1.00 | Bal. |
/ | Nb-Zr | 0.004 | 0.015 | 0.003 | 0.0015 | 0.05 | 0.004 | 0.002 | 0.005 | 0.005 | 0.004 | 0.002 | 10.0 | Bal. |
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 | |
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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