◆ Tungsten
Powder
Appearance: Tungsten powder is dark grey, Spraying tungsten powder
bright grey
um Average Particle(um) |
Oxygen Content(%) |
<1 |
≤0.30 |
1-2 |
≤0.25 |
2-4 |
≤0.15 |
4-6 |
≤0.10 |
6-8 |
≤0.07 |
9-12 |
≤0.07 |
Grade |
FW1 |
FW2 |
Main Comp WO3 Min.(%) |
99.95 |
99.9 |
Content of other Chemical,Element Max.(%) |
Pb |
0.0001 |
0.001 |
Bi |
0.0001 |
0.001 |
Sn |
0.0001 |
0.001 |
Sb |
0.001 |
0.001 |
As |
0.001 |
0.002 |
Fe |
0.002 |
0.030 |
Ni |
0.003 |
0.005 |
Cu |
0.001 |
0.005 |
Al |
0.001 |
0.003 |
Si |
0.002 |
0.002 |
Ca |
0.001 |
0.002 |
Mg |
0.001 |
0.002 |
Mo |
0.002 |
0.005 |
P |
0.001 |
0.005 |
C |
0.005 |
0.008 |
K |
0.001 |
0.005 |
Na |
0.001 |
0.005 |
| Sieve Size |
75um(-200 Mesh) |
75um(-200 Mesh) |
| Application |
For large W plate and W Retherm ocouple. |
For contact alloy and high density shielding material. |
|