Niobium Products | Refractory Metal
Niobium Crucible
High-purity niobium crucibles for crystal growth, vacuum melting, and high-temperature chemical processing. Manufactured through deep drawing, spinning, or welding of niobium sheet with capacities from 10ml to 50 liters. Our niobium crucibles offer excellent resistance to molten metals and salts, superior high-temperature stability, and minimal contamination. Essential for sapphire crystal growth, rare earth metal melting, superconductor processing, and specialty metallurgy applications.
About Niobium Crucible
Our niobium crucibles are precision-manufactured from high-purity niobium to deliver exceptional performance in the most demanding high-temperature and chemically aggressive environments.
Features
- Capacity: 10ml to 50 liters
- Deep drawn or spun construction
- 99.9%+ purity niobium
- Excellent molten metal resistance
- High-temperature stability
- Minimal contamination
- Custom sizes available
- Lid and accessories available
- Surface finish options
- Full material certification
Specifications
| Material | Niobium (Nb), UNS R04200 |
|---|---|
| Purity | ≥99.9% |
| Capacity | 10ml - 50L |
| Wall Thickness | 0.5mm - 5mm |
| Temperature Rating | Up to 2000°C (vacuum/inert) |
| Construction | Deep drawn, spun, or welded |
| Surface Finish | Polished, pickled |
| Shape | Cylindrical, conical, custom |
| Testing | Visual, dimensional, leak test |
| Accessories | Lids, handles, stands |
Applications of Niobium Crucible
Niobium Crucible is widely used across multiple industries including chemical processing, aerospace, electronics, medical, nuclear, and semiconductor manufacturing. The exceptional properties of niobium crucible make it indispensable for applications requiring corrosion resistance, high-temperature stability, and material purity. Our niobium crucible products serve leading companies worldwide in these demanding industries, delivering reliable performance and long service life in the most challenging environments.
Frequently Asked Questions about Niobium Crucible
Q: What is the maximum temperature for niobium crucibles?
A: Niobium crucibles can operate up to 2000°C in vacuum or inert atmosphere. In air, oxidation begins above 400°C.
Q: What applications use niobium crucibles?
A: Primary applications include sapphire crystal growth (KY and CZ methods), rare earth metal melting, superconductor processing, and specialty metallurgy.
Q: Can niobium crucibles be reused?
A: Yes, niobium crucibles can be reused multiple times with proper cleaning and handling. They can be refurbished by chemical cleaning and surface treatment.
Q: What sizes are available?
A: We supply niobium crucibles from 10ml laboratory size to 50 liters industrial capacity. Custom shapes and sizes are available.
