1998-2000
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Tungsten Wire
Tungsten Rod
Molybdenum Wire
Stranded Tungsten Wire
Tungsten Powder
Molybdenum
Rods
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Tungsten Powder
1.Appearance
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It is a dark-gray powder, appearance of
other colors, and visible nubs and mechanical
inclusions are not allowed, and it shall be
uniform color. |
2.Chemical
composition
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2.1 W≥99.95%
O2≤0.2% |
2.2 Elements content max (according to
WO3)
|
| Elements |
Al |
As |
Bi |
Ca |
Cd |
Cr |
Co |
Cu |
Fe |
| Content（%） |
0.0005 |
0.001 |
0.0001 |
0.002 |
0.0001 |
0.001 |
0.0005 |
0.0001 |
0.003 |
| Elements |
Mg |
Mn |
Mo |
Na |
Ni |
K |
P |
Pb |
S |
| Content（%） |
0.001 |
0.0005 |
0.002 |
0.001 |
0.002 |
0.001 |
0.0007 |
0.0001 |
0.0007 |
| Elements |
Sb |
Si |
Sn |
Ti |
V |
|
| Content（%） |
0.0002 |
0.0015 |
0.0001 |
0.0005 |
0.0005 |
| 4.Packing |
Packing in iron drums with inner cloth
bags or plastic bags of 50kg.100kg net each. |
5.Applications:
|
It is used for the preparations of pure
tungsten bars and wires. hard alloys, electrical parts
etc. |
| Any particular requirements to the
products can be discussed. |
|