Corrosion Resistance Pure Tungsten Crucible Smelting Tungsten Basket Crucible
Pure Tungsten Crucible Smelting Of Rare Earth Metals
Feature
- High density;
- Good corrosion resistance;
- The surface roughness of tooled crucibles does not exceed Rz 6.3;
- The use temperature below 2450C in vacuum or deoxidize atmosphere;
- Manufactured based on customers' requirements.
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
- Used for sapphire single crystal growth furnace
- Applied for quartz glass melting furnace;
- Used for rare earth smelting furnace;
- Used for sintering metal molding of high melting point;
- Widely used in other following industries: Ceramics and metallurgical industries, machinery processing and light industries.
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