Appearance : Silver gray metallic luster .
Grade : W-1 W-2 W-3 W-4
Density：≥17.0g /cm3
Main application : W-1 is used for making the pole , wire drawing , or doing steel-making additive . W-4 is used as the steel-making additives .
The impurity content accords with GB3459-82
Grade |
W-1 |
W-2 |
W-3 |
W-4 |
The impurity
Content is not more than % |
Pb |
-- |
-- |
-- |
0.001 |
Bi |
-- |
-- |
-- |
0.001 |
Sn |
-- |
-- |
-- |
0.001 |
Sb |
-- |
-- |
-- |
0.001 |
As |
-- |
-- |
-- |
0.002 |
Fe |
0.005 |
0.005 |
0.010 |
0.05 |
Ni |
0.003 |
0.003 |
0.005 |
0.30 |
Al |
0.002 |
0.002 |
0.005 |
0.005 |
Si |
0.003 |
0.003 |
0.010 |
0.010 |
Ca |
0.003 |
0.003 |
0.005 |
0.005 |
Mg |
0.002 |
0.002 |
0.005 |
0.010 |
Mo |
0.010 |
0.010 |
0.20 |
0.20 |
P |
0.001 |
0.001 |
0.002 |
0.005 |
C |
0.005 |
0.008 |
0.010 |
0.010 |
O |
0.003 |
0.003 |
0.005 |
0.010 |
N |
0.003 |
0.003 |
-- |
-- |
|
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