Molybdenum crucibles with high melting and boiling points, high-temperature strength, wear and corrosion resistance, high thermal conductivity and low thermal expansion. Made by sintering, stamping or spin-forming as the core vessels in sapphire single-crystal growth, quartz-glass melting and rare-earth smelting furnaces. Outer diameters 60–500 mm — all sizes custom to your drawing.
| Outer diameter | 60 – 500 mm |
| Height | 50 – 800 mm |
| Wall thickness | 5 – 50 mm |
| Bottom thickness | 15 – 50 mm |
| Grade / Purity | Mo ≥ 99.95% |
| Forming | Sintered · stamped · spin-formed |
| Surface | Silver-gray sintered / polished |
| Standard | YS/T 796-2012 |
| Properties | High-temp strength · wear & corrosion resistance |
| Size | Custom to drawing |
| Packing | Moisture-proof paper + foam + wooden case |
| Atomic number | 42 |
| CAS number | 7439-98-7 |
| Atomic mass | 95.94 g/mol |
| Melting point | 2620 °C |
| Boiling point | 4639 °C |
| Density (20 °C) | 10.22 g/cm³ |
| Crystal structure | Body-centered cubic |
| Thermal expansion (20 °C) | 5.2 × 10⁻⁶ m/(m·K) |
| Thermal conductivity (20 °C) | 142 W/(m·K) |
| Specific heat (20 °C) | 0.25 J/(g·K) |
| Electrical conductivity (20 °C) | 17.9 × 10⁶ S/m |
| Resistivity (20 °C) | 0.056 (Ω·mm²)/m |
Mo powder mixed and screened.
Cold isostatic pressing into a blank.
Medium-frequency sintering furnace.
Rough and finish machining, then polishing.
Core vessels for sapphire crystal growth furnaces.
Crucibles for quartz-glass melting furnaces.
Vessels for rare-earth smelting and metallurgy.
Crucibles for vacuum coating, magnetic materials and silicon / solar.
Send your OD, height, wall and bottom thickness — or a drawing. Quotes within one business day.