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With high purity (≥99.9%), high level of resistance and excellent formability, our niobium crucible is appropriate for manufacturing synthetic polycrystalline diamonds. It is often used for high-pressure and high-temperature synthesis.
In different forms, niobium crucible can be used in the field of synthetic diamonds, fiber optic or architectural glass, chemical engineering, superconductors, thin-film, reactors and high temperature vacuum furnaces and sodium vapor lamps.
Package and Transportation
We pack niobium crucible in plywood case and send them by ocean or air.
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 |
Chemical Composition of Niobium Crucible
| Chemistry PPM | ||||||||||||
Designation | Chief component | Impurities maximum | ||||||||||
Nb | Ta | Si | Ni | W | Mo | Ti | Fe | O | C | H | N | |
Nb1 | Remainder | 700 | 50 | 50 | 50 | 30 | 20 | 50 | 150 | 40 | 15 | 30 |
Nb2 | Remainder | 1000 | 80 | 40 | 100 | 100 | 40 | 80 | 180 | 60 | 15 | 50 |
