Tungsten Powder
Molecular Formula: FW
Appearance: Tungsten powder is dark grey.
Application: For large tungsten plate, tungsten-rhenium thermocouples, contact alloy, etc.
Normal size range: 1-20μm, if with super fine or coarse grain size, then contact us for details.
Oxygen Content
|
Grade |
Oxygen Content(%) |
|
FW-1 |
≤0.20 |
|
FW-2 |
≤0.25 |
|
FWP-1 |
≤0.20 |
Chemical Composition
|
Grade |
FW-1 |
FW-2 |
FWP-1 |
|
Main Comp W Min. (%) |
99.95 |
99.9 |
99.9 |
|
Impurities Max.(%) |
Pb |
0.001 |
0.001 |
0.001 |
|
Bi |
0.0001 |
0.001 |
0.001 |
|
Sn |
0.0001 |
0.001 |
0.001 |
|
Sb |
0.001 |
0.001 |
0.001 |
|
As |
0.002 |
0.002 |
0.002 |
|
Fe |
0.005 |
0.02 |
0.03 |
|
Ni |
0.003 |
0.005 |
0.005 |
|
Cu |
0.001 |
0.005 |
/ |
|
Al |
0.001 |
0.003 |
0.005 |
|
Si |
0.003 |
0.08 |
0.01 |
|
Ca |
0.002 |
0.005 |
0.005 |
|
Mg |
0.002 |
0.005 |
0.005 |
|
Mo |
0.008 |
0.02 |
0.02 |
|
P |
0.001 |
0.005 |
0.005 |
|
C |
0.005 |
0.008 |
0.01 |
|
K |
0.002 |
0.005 |
/ |
|
Na |
0.002 |
0.005 |
/ |
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