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1.Appearance:Tungsten powder is dark grey
2.Packing:in iron drum lined with double plastic bags of 100/200kgs net each.
3.Use:These products are widely applied to making refractory steel,compound materials for automobile founding,guns,artillery,rokets,satelliter,aeroplane, warship and amour-piecing bullet.
4.Specification:GB/T3458-1982.
Chemical Composition (%)
|
Grade |
FW-1 |
FW-2 |
|
|
Impurities |
W |
≥99.95 |
≥99.9 |
|
Fe |
0.005 |
0.03 |
|
|
Si |
0.002 |
0.005 |
|
|
Ca |
0.002 |
0.004 |
|
|
Al |
0.001 |
0.004 |
|
|
Mn |
0.001 |
0.002 |
|
|
Mg |
0.001 |
0.004 |
|
|
Ni |
0.003 |
0.004 |
|
|
Sb |
0.001 |
0.001 |
|
|
Cr |
0.001 |
0.004 |
|
|
As |
0.001 |
0.002 |
|
|
Pb |
0.0001 |
0.0005 |
|
|
Bi |
0.0001 |
0.0005 |
|
|
Sn |
0.0003 |
0.0005 |
|
|
Cu |
0.0007 |
0.001 |
|
|
Mo |
0.005 |
0.01 |
|
|
K |
0.0015 |
0.0015 |
|
|
Na |
0.0015 |
0.0015 |
|
|
S |
0.001 |
0.002 |
|
|
P |
0.001 |
0.004 |
|
|
C |
0.005 |
0.01 |
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