Character:

Tungsten powder is dark grey,spraying tungsten powder is bright grey.

Tungsten powder
Applications：
 Used for carbide alloy,diamond tools,W-based heavy alloy,W-Re thermocouple,contact allou etc...
Oxygen content ：
Grade
Oxygen content.(%)
FW-1
≤ 0.20
FW-2
≤ 0.25
FWP-1
≤ 0.20
Electric mirror photo 6000×
Main chemical composition,% ：
Grade
FW-1
FW-2
FWP-1
Main comp W， Min. (%)
99.95
99.9
99.9
Content of other chemical element 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
0.020
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
0.010
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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