W1 W2 Tungsten Melting Pot Alkali Washing Lathing Surface
Grade: W1
Application: Used for sapphire crystal growing, rare earth metal metallurgy.
Commodity | Material | Specification | Tolerance | Density |
Tungsten Crucible | Pure W | Φ(50-800)mm*(5-850)mm | ±0.5mm | ≥9.9g/cm³ |
Note : For special specifications, we can produce according to customer's drawing. |
Specification
delivery condition | specification | tolearance | 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