|
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 armour-piecing bullet.
4.Specification: GB/T3458-1982,
Chemical Composition (%)
|
Grade
|
FW-1
|
FW-2
|
|
Impurities
(%)max.
|
W
|
≥99.95
|
≥99.9
|
|
Fe
|
0.0050
|
0.0300
|
|
Si
|
0.0020
|
0.0050
|
|
Ca
|
0.0020
|
0.0040
|
|
Al
|
0.0010
|
0.0040
|
|
Mn
|
0.0010
|
0.0020
|
|
Mg
|
0.0010
|
0.0040
|
|
Ni
|
0.0030
|
0.0040
|
|
Sb
|
0.0010
|
0.0010
|
|
Cr
|
0.0010
|
0.0040
|
|
As
|
0.0010
|
0.0020
|
|
Pb
|
0.0001
|
0.0005
|
|
Bi
|
0.0001
|
0.0005
|
|
Sn
|
0.0003
|
0.0005
|
|
Cu
|
0.0007
|
0.0010
|
|
Mo
|
0.0050
|
0.0100
|
|
K
|
0.0015
|
0.0015
|
|
Na
|
0.0015
|
0.0015
|
|
S
|
0.0010
|
0.0020
|
|
P
|
0.0010
|
0.0040
|
|
C
|
0.0050
|
0.0100
|
|
