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Cobalt is a brittle, hard, transition metal with magnetic
properties similar to those of iron. Pure cobalt is used to
make the negative electrode of x-ray tube and other special
products. Almost all the cobalt is used for the manufacture
of alloys. such as precision alloy, thermal-resistent alloy,
carbide alloy, welding alloy, etc. Cobalt is available in
many forms including plate, granule, ingot, powder etc.
| Grade |
Co: 9998 |
Co: 998 |
Co: 9965 |
| Co (% min.) |
99.98 |
99.8 |
99.65 |
Impurities
(% max) |
C |
0.004 |
0.005 |
0.009 |
| Si |
0.001 |
0.003 |
- |
| S |
0.001 |
0.002 |
0.003 |
| Mn |
0.001 |
0.005 |
0.01 |
| Fe |
0.003 |
0.006 |
0.05 |
| Ni |
0.005 |
0.15 |
0.20 |
| Cu |
0.001 |
0.003 |
0.02 |
| As |
0.0003 |
0.0005 |
0.001 |
| Pb |
0.0003 |
0.0004 |
0.001 |
| Zn |
0.001 |
0.002 |
0.002 |
| Cd |
0.0002 |
0.0003 |
0.001 |
| Mg |
0.001 |
0.002 |
- |
| P |
0.001 |
0.001 |
0.001 |
| Al |
0.001 |
0.002 |
- |
| Sn |
0.003 |
0.0003 |
0.0003 |
| Sb |
0.0002 |
0.0003 |
0.0005 |
| Bi |
0.0002 |
0.0003 |
0.0003 |
| Total |
0.02 |
0.2 |
0.35 |
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