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Pure Tungsten

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FABRICATION GROUP PRODUCT SOURCING WHAT'S NEW CONTACT US HOME
As a high performance materials, Pure Tungsten has high melting temperature, high density, low vapor pressure, low thermal expansion combined with good thermal conductivity, sufficient electrical resistance, high modulus of elasticity.Tungsten sheets and disk are available with alkali washed or ground finish.  Depending on thickness, sizes are up to 450 x 1000 mm.  Thickness are from 0.1 to 15 mm. 
Bar and rod stock are available with ground surfaces and as sintered or swaged condition.  Diameters range from 1 to 30 mm and up to 2000 mm long depending on size and conditioning.  Large ranges of custom crucibles and single crystal ingots are offered. 
Applications:
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, Electrodes.
Property
Unit
Value
Melting Point
°C
3410
Max. Use Temperature
°C
1700
Electrical Resistivity
@20 °C µ ohm-cm)
5.6
Electrical Conductivity
@20 °C %IACS
31
Thermal Expansion
ppm / °C
4.6
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
Machining Pure Tungsten (pdf 104k)