| Material Grade | Condition | Sizes (mm) | Type | ||
| Thickness | Width | Length | |||
| Nb1; Nb2; R04210-2; R04261-4 | Hard(y) | 0.01～0.09 | 30～150 | >200 | Foil |
| Hard (y)Soft (m) | 0.1～0.5 | 50～300 | 100～2000 | Strip & Plate | |
| >0.5～2.0 | 50～500 | 50～1200 | Plate | ||
| >2.0～6.0 | 50～500 | 50～1200 | |||
Thermal protection and structural materials in aviation and aerospace industries, electronic tubes and other electrical vacuum devices, superconducting materials, heat-resistant alloys and cemented carbides, etc.Below -264ºC, niobium exhibits superconducting properties. It conducts high densities of electrical current resistance-free, creating magnetic fields and forces that yield important practical applications in areas such as medical diagnostics, materials research and transportation.| Chemical Composition（％） | ||||||||||||
| Grade | Nb | Fe | Si | Ni | W | Mo | Ti | Ta | O | C | H | N |
| Nb1 | Bal | 0.004 | 0.004 | 0.002 | 0.005 | 0.005 | 0.002 | 0.05 | 0.012 | 0.0035 | 0.0012 | 0.003 |
| Nb2 | Bal | 0.01 | 0.01 | 0.005 | 0.02 | 0.01 | 0.004 | 0.07 | 0.015 | 0.0050 | 0.0015 | 0.008 |
| Grade | Min. Tensile Strength (MPa) | Min. Yield Strength (MPa) | Min. Elongation (％) (25.4mm) |
| R04200，R04210 | 125 | 85 | 25 |