Product Code : ME-W-99.999%-CR
Tungsten crucible is one of tungsten products, mainly divided into sintering forming, stamping forming, spinning type, the use of molybdenum rod turning forming, welding forming, using pure tungsten plate, tungsten plate and pure tungsten rod through the corresponding process.
Tungsten crucible melting point 3420℃, the use of ambient temperature is generally above 2400℃. Tungsten crucible is widely used in sapphire crystal growth, quartz glass smelting, vacuum coating, rare earth smelting and other industries. Especially for the sapphire single crystal growth furnace, tungsten crucible has the characteristics of high purity, high density, no internal cracks, accurate size, smooth inner and outer walls, etc., which plays a key role in the growth process of sapphire crystal, seed crystal quality control, decrystallization sticking pot, life, etc.
CAS #: 7440-33-7
Linear Formula: W
MDL Number: MFCD00011461
EC No.: 231-143-9
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Product Information
Tungsten crucible is one of tungsten products, mainly divided into sintering forming, stamping forming, spinning type, the use of molybdenum rod turning forming, welding forming, using pure tungsten plate, tungsten plate and pure tungsten rod through the corresponding process.
Tungsten crucible melting point 3420℃, the use of ambient temperature is generally above 2400℃. Tungsten crucible is widely used in sapphire crystal growth, quartz glass smelting, vacuum coating, rare earth smelting and other industries. Especially for the sapphire single crystal growth furnace, tungsten crucible has the characteristics of high purity, high density, no internal cracks, accurate size, smooth inner and outer walls, etc., which plays a key role in the growth process of sapphire crystal, seed crystal quality control, decrystallization sticking pot, life, etc.
Synonyms
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Specifications of Tungsten Crucible
| Size | 10-500mm OD x 1-30mm WT x 10-500mm H, Customized |
| Material | W≥99.95% |
| Standard | ASTM |
| Purity | ≥99.95% |
| Surface | Grinding, Finish turning |
Dimensions of Tungsten Crucible
| Diameter (mm) | Wall Thickness (mm) | Height (mm) |
| 10 ~ 30 | 1 ~ 3 | 10 ~ 500 |
| 30 ~ 50 | 2 ~ 10 | |
| 50 ~ 100 | 3 ~ 15 | |
| 100 ~ 150 | 3 ~ 15 | |
| 150 ~ 200 | 5 ~ 20 | |
| 200 ~ 300 | 8 ~ 20 | |
| 300 ~ 400 | 8 ~ 30 | |
| 400 ~ 450 | 8 ~ 30 | |
| 450 ~ 500 | 8 ~ 30 |
ATT supply all kinds of Tungsten crucible and other Tungsten parts (including heaters, heat insulation screens, sheets and supports, etc.) used in the process of sapphire growth and rare-earth melting and we can manufacture the products according to customers’drawings and specific requirements.
Chemical Composition for Tungsten Crucible
| Product | Tungsten content | Impurity content | |
| Total content | Content per element | ||
| W Crucible | ≥99.95% | ≤0.05% | ≤0.01% |
Tungsten Crucible Properties
| Molecular Weight | 183.85 |
| Appearance | Silvery |
| Melting Point | 3410 °C |
| Boiling Point | 5900 °C |
| Density | 19.3 g/cm3 |
| Solubility in H2O | N/A |
| Electrical Resistivity | 5.65 microhm-cm @ 27 °C |
| Electronegativity | 1.7 Paulings |
| Heat of Fusion | 8.42 Cal/gm mole |
| Heat of Vaporization | 185 K-Cal/gm atom at 5660 °C |
| Poisson's Ratio | 0.28 |
| Specific Heat | 0.0317 Cal/g/K @ 25 °C |
| Tensile Strength | 750 MPa |
| Thermal Conductivity | 1.73 W/cm/K @ 298.2 K |
| Thermal Expansion | (25 °C) 4.5 µm·m-1·K-1 |
| Vickers Hardness | 3430 MPa |
| Young's Modulus | 411 GPa |
Applications of Tungsten Crucible
Tungsten crucible is widely used in rare earth smelting, quartz glass, electronic spraying, crystal growth and other industries, mainly used as rare earth metal smelting furnace, quartz glass melting furnace, induction furnace heating body, single crystal furnace high temperature container, sapphire single crystal growth furnace, high temperature vacuum furnace and other industrial furnaces. In the process of sapphire crystal growth, the tungsten crucible should have the characteristics of no internal cracks, accurate size, and smooth inner and outer walls.
Packaging of Tungsten Crucible
Standard Packing:
Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes Special package is available on request.
ATTs’Tungsten Crucible is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.
Chemical Identifiers
| Linear Formula | W |
| CAS | 7440-33-7 |
| MDL Number | MFCD00011461 |
| EC No. | 231-143-9 |
| Beilstein/Reaxys No. | N/A |
| Pubchem CID | 23964 |
| SMILES | [W] |
| InchI Identifier | InChI=1S/W |
| InchI Key | WFKWXMTUELFFGS-UHFFFAOYSA-N |
