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

Tungsten Tube

Melting Point
°C 3410
Max. Use Temperature °C 1700
Electrical Resistivity
@20 °C µ ohm-cm)
Electrical Conductivity @20 °C %IACS 31
Thermal Expansion ppm / °C
Thermal Conductivity W/m°k 165
Impurities - max. %
W Pb Bi Sn Sb As Fe Ni Cu
99.95 min 0.0001 0.0001 .0.0001 .0.001 0.002 0.005 0.003 0.001
Al Si Ca Mg Mo P C K Na
0.001 0.003 0.002 0.002 0.008 0.001 0.005 0.002 0.002


Download Machining Pure Tungsten Pdf


360-379-6707@mkt-intlEmail Us192 N. Otto Street Port Townsend, WA 98368