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| Tungsten bar |
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Tungsten bar£º
Appearance : Silver gray metallic luster .
Grade : W-1 W-2 WAL-1 W-4
Density£º¡Ý17.5g /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 |
WAL-1 |
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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