Tungsten
Rivets and Discs
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Tungsten Rivets & Discs |
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it is widely used in
electrical contacts, such like power semiconductor device, automobiles,
motorcycles, electric horns, magnetic-motors and etc.
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W |
Density |
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>99.95% |
19.1-19.3g/cm3
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>9800 |
Chemical
composition
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W % |
Other elements(less than%) |
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Fe |
Al |
Si |
Mg |
Ca |
Ni |
Cu |
Pb |
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99.95% |
0.002 |
0.001 |
0.001 |
0.0007 |
0.001 |
0.0007 |
0.0001 |
0.0001 |
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Bi |
Sn |
Mo |
Sb |
As |
O |
C |
P |
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0.0001 |
0.0001 |
0.002 |
0.0002 |
0.0002 |
0.001 |
0.005 |
0.001 |
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Physical
properties:
Density:
19.1-19.3g/
cm3
Hardness: 74kg/mm
Coarseness: <0.3um
Parallel: <8D/1000
Flatness:<5.0um
Size and tolerance:
Diameter:1.2mm-10mm
Tolerance: ¡À0.05mm