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Tungsten
Tungsten
Tungsten is the most widely used of the refractory metals. In wire form, it is essential for the production of lighting products such as wire filament, and other goods where its high temperature properties are of use. Among its properties are a melting point of 3410° C, a low coefficient of thermal expansion and low vapor pressure at elevated temperatures, along with good electrical and thermal conductivity.
Pure tungsten products are widely used for Furnace parts, Semiconductor Base Plates, Components for Electron Tubes, Emission Cathodes for Electron Beam Evaporation, Cathodes and Anodes for Ion Implantation, Tubes / Boats for Sintering of Capacitors, Targets for X-ray Diagnostics, Crucibles, Heating Elements, X-ray Radiation Shielding, Sputtering Targets and Electrodes.
Tungsten is the most widely used of the refractory metals. In wire form, it is essential for the production of lighting products such as wire filament, and other goods where its high temperature properties are of use. Among its properties are a melting point of 3410° C, a low coefficient of thermal expansion and low vapor pressure at elevated temperatures, along with good electrical and thermal conductivity.
1, Grade: W1, W2, W3, W4
2, Diameter: 2.0-100.0mm
3, Length: 50-1000mm
4, Density: 19.2g/cm3
5, Surface: Sintering surface, Forged surface, Ground surface
2, Diameter: 2.0-100.0mm
3, Length: 50-1000mm
4, Density: 19.2g/cm3
5, Surface: Sintering surface, Forged surface, Ground surface
1, Grade: W1, W2, W3, W4
2, width×Length: (2.0-100.0mm)×(2.0-100.0mm)
3, High: 50-1000mm
4, Density: 19.2g/cm3
5, Surface: Sintering surface, Forged surface, Ground surface
2, width×Length: (2.0-100.0mm)×(2.0-100.0mm)
3, High: 50-1000mm
4, Density: 19.2g/cm3
5, Surface: Sintering surface, Forged surface, Ground surface
1, Grade: W1, W2, W3, W4
2, Width×Length: (2.0-500.0mm)×(2.0-500.0mm)
3, Thickness: 0.2mm-15.0mm
4, Density: 19.2g/cm3
5, Surface: Sintering surface, Forged surface, Ground surface
2, Width×Length: (2.0-500.0mm)×(2.0-500.0mm)
3, Thickness: 0.2mm-15.0mm
4, Density: 19.2g/cm3
5, Surface: Sintering surface, Forged surface, Ground surface
1, Width×Length: (10-150mm)×(10-200mm)
2, Thickness: 0.02mm-0.20mm;
3, Density: 19.2g/cm3
4, Purity min 99.95%, 99.98% can also be achieved if special demanded.
5, Appearance: Surface can be supplied in a mirror or matte finish dependent upon thickness and width parameters.
2, Thickness: 0.02mm-0.20mm;
3, Density: 19.2g/cm3
4, Purity min 99.95%, 99.98% can also be achieved if special demanded.
5, Appearance: Surface can be supplied in a mirror or matte finish dependent upon thickness and width parameters.
We began with research and development of tungsten electrode, while unceasingly optimizing cerium tungsten, thorium tungsten, and pure tungsten and so on. Our factory centralized scientific research strength, and develops cerium tungsten electrode, lanthanum tungsten electrode, zirconium tungsten electrode, yttrium tungsten electrode and so on.
Tungsten crucible furnace is mainly used for Sapphire crystal growth furnace, rare earth smelting vessel, the quartz glass smelting furnace. According to your drawing, we can supply all kinds of high temperature crucible.
1, Name: Tungsten boats
2, Appearance: silver grey metal luster
3, Density: not less than 19.1g/cm3
4, Supply state: processing
5, Quality standard: according to customer
2, Appearance: silver grey metal luster
3, Density: not less than 19.1g/cm3
4, Supply state: processing
5, Quality standard: according to customer
1, Diameter: 0.01mm~2.00mm
2, Grade: W1, W2, WAL1, WAL2, WAL3
3, Density: 19.2g/cm3
4, Purity 99.92%, 99.98% can also be achieved if special demanded.
5, Specific electrical: 0.055 Ohm x mm2/m resistance at 20 °C.
6, Modulus of elasticity: 410 kN/mm2, at 20 °C.
2, Grade: W1, W2, WAL1, WAL2, WAL3
3, Density: 19.2g/cm3
4, Purity 99.92%, 99.98% can also be achieved if special demanded.
5, Specific electrical: 0.055 Ohm x mm2/m resistance at 20 °C.
6, Modulus of elasticity: 410 kN/mm2, at 20 °C.
1, Grade: WaL/W1 ( AL)
2, Diameter: φ0.4-1.3mm
3, Number of strands: 1-10(strands)
4, Difference between 2 feet (mm): Big heater element: ±2mm; Small heater element: ±1mm
5, Inside diameter tolerance: ±0.3mm
6, According to the samples or drawings of customers
2, Diameter: φ0.4-1.3mm
3, Number of strands: 1-10(strands)
4, Difference between 2 feet (mm): Big heater element: ±2mm; Small heater element: ±1mm
5, Inside diameter tolerance: ±0.3mm
6, According to the samples or drawings of customers
Tungsten heater made of tungsten wire, features high melting point and high corrosion resistance, mainly applied for vacuum metallizing, such as aluminizing scope, chrome scope, mirrors, plastics and heater elements for decoration articles.
Feature: Energy saving, High lumen maintenance, long lifespan, High heat and mechanical resistance
Feature: Energy saving, High lumen maintenance, long lifespan, High heat and mechanical resistance
1, Diameter: 30-500mm
2, Thickness: 8-30mm
3, Length: 10-2000mm
4, Density: 19.2g/cm3
5, Purity>=99.92%
6, Application: Mainly used for high temperature furnace components, crucible, missile rockets nozzle high temperature furnace, etc.
2, Thickness: 8-30mm
3, Length: 10-2000mm
4, Density: 19.2g/cm3
5, Purity>=99.92%
6, Application: Mainly used for high temperature furnace components, crucible, missile rockets nozzle high temperature furnace, etc.
1, Material: Tungsten
2, Size: Thinness (<20mm) x="" width=""><300mm) x="" length="">
3, Condition: ground
4, Application: PVD coating industry, x-ray tube and so on.
2, Size: Thinness (<20mm) x="" width=""><300mm) x="" length="">
3, Condition: ground
4, Application: PVD coating industry, x-ray tube and so on.
Most of our tungsten fabricated parts and molybdenum fabricated parts are used as ion implantation parts for semiconductor industry and as sputtering targets for the solar industry. We also produce parts for X-ray and electron tubes which be made of tungsten and molybdenum. Tungsten crucibles and molybdenum crucibles for quartz melting and high temperature vacuum furnace are also our main products.
As the heat-shield parts in the sapphire growth furnace, the most decisive function of upper and bottom cover plate is to prevent and reflect the heat in the furnace. Heat-shield parts with high-density, exact-measurement, smooth-surface, convenient-assembly and reasonable-design has great significance in improving the crystal-pulling.
sales@chinatungsten.com