PURE TUNGSTEN
Pure tungsten is a high-performance material with a high melting temperature, high density, low vapor pressure, and low thermal expansion properties. It also offers good thermal conductivity, sufficient electrical resistance, and a high modulus of elasticity.
Marketech offers pure tungsten sheets and discs with alkali washed or ground finishes. Our tungsten sheets/discs are available in thicknesses from 0.1 to 15 mm, and sizes up to 450 x 1000 mm, depending on thickness.
Pure tungsten bar and rod stock are available with ground surfaces and can be sintered or swaged. Diameters range from 1 to 30 mm in diameter and up to 2,000 mm long, depending on desired size and conditioning. Large ranges of custom crucibles and single crystal ingots are also available.
Pure Tungsten Applications
- Furnace parts
- Semiconductor base plates
- Components for electron tubes
- Cathodes and anodes for ion implantation
- Tubes/boats for capacitor sintering
- Targets for x-ray diagnostics
- X-ray radiation shielding
- Crucibles
- Heating elements
- Sputtering targets
- Electrodes
- Emission cathodes for electron beam evaporation
| Property | Unit | Value |
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Melting Point
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°C | 3410 | ||||||||||||||||||||||||||||||||||||||||||||||
| Max. Use Temperature | °C | 1700 | ||||||||||||||||||||||||||||||||||||||||||||||
| Electrical Resistivity |
@20 °C µ ohm-cm)
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5.6
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| Electrical Conductivity | @20 °C %IACS | 31 | ||||||||||||||||||||||||||||||||||||||||||||||
| Thermal Expansion | ppm / °C |
4.6
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| Thermal Conductivity | W/m°k | 165 | ||||||||||||||||||||||||||||||||||||||||||||||
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Download Machining Pure Tungsten Pdf
