Niobium Crucible Description
Material: RO4200, RO4210
Purity: 99.95%
Customized shapes for Niobium crucibles include, but are not limited to, oval, tapered, bottomless, or round mouth.
Niobium Crucible Chemical Composition
| Chemical Composition (%) | ||||||||||||
| Material | Main elements(%) | Impurities (Maximum %) | ||||||||||
| Nb | Fe | Si | Ni | W | Mo | Ti | Ta | O | C | H | N | |
| RO4200 | Remainder | 0.004 | 0.004 | 0.002 | 0.005 | 0.005 | 0.002 | 0.07 | 0.015 | 0.0040 | 0.0015 | 0.003 |
| RO4210 | Remainder | 0.01 | 0.01 | 0.005 | 0.02 | 0.01 | 0.004 | 0.10 | 0.02 | 0.01 | 0.0015 | 0.01 |
| Material Type | Niobium |
| Symbol | Nb |
| Atomic Number | 41 |
| Color/Appearance | Gray, Metallic |
| Melting Point | 2,468 °C |
| Density | 8.57 g/cc |
Niobium Crucible Mechanical Requirements (annealed condition)
| Grade | Tensile strength δbpsi (MPa), ≥ | Yield strength δ0.2, psi (MPa),≥ | Elongation in 1″/2″ gage length, %, ≥ | |
| >=0.010 | <0.010 | |||
| RO4200, RO4210 | 18000 (125) | 12000 (85) | 25 | 20 |
Niobium Crucible Packaging
Our high performance Niobium crucibles are wrapped in foam and packaged in plywood cases to ensure safe storage and transportation.
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Niobium Crucible Packaging


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