Customized Tungsten Crucible For High Temperature Furnace
Tungsten crucibles can be produced for sintering purposes (density of 9.8-10g/cc) or forging purposes (up to 10.2g/cc). Customized shapes for tungsten crucibles include but are not limited to, oval, tapered, bottomless, or round mouth. tungsten crucible can be used in LED, Sapphire Crystal Growing, and Chemical industries.
Specification
delivery condition | specification | tolerance | thickness | roughness | ||
diameter | height | diameter | height | |||
sintered | 10-550 | 10-750 | +/-5.0 | +/-5.0 | 8-20 | <3.5 |
sintering finishing | 10-450 | 10-550 | +/-0.5 | +/-1.0 | 7-18 | <2.5 |
Atomic number | 74 |
CAS number | 7440-33-7 |
Atomic mass | 183.84 [g/mol] |
Melting point | 3420 °C |
Boiling point | 5555 °C |
Density at 20 °C | 19.25 [g/cm3] |
Crystal structure | Body-centered cubic |
Coefficient of linear thermal expansion at 20 °C | 4.410-6[m/(mK)] |
Thermal conductivity at 20 °C | 164 [W/(mK)] |
Specific heat at 20 °C | 0.13 [J/(gK)] |
Electrical conductivity at 20 °C | 18.2106[S/m] |
Specific electrical resistance at 20 °C | 0.055 [(mm2)/m] |
Application