Superfine Tungsten Powder
Use: | Used in hard alloys, diamond tools, high density alloys, raw materials of W-Re electric thermocouples, alloys of contact headers. |
Property: | Deep or bright grey powder. |
Particle Size: | 2~5μm,4~6μm |
Bulk Density: | 2.5 ~ 3.0 g/cc |
Storage: | Should be stored in shady, cool and ventilated warehouse. Kept far away from fire, heat source and acid. No smoking in the workplace. Fire fighting equipment such as extinguisher shoule be available. Should be stored in vacuum encapsulation in case of being oxidized. |
Attention in usage: | The powder is innoxious and no harmful to health. While using, please avoid dust cloud formation, keep clear of acid and keep away from fire in case of exploding. |
Chemical Composition(wt.%) |
W | ≥ 99.9 | Pb | < 0.001 |
Mo | < 0.008 | Si | < 0.003 |
Fe | < 0.005 | Cu | < 0.001 |
Al | < 0.001 | Na | < 0.002 |
Mg | < 0.002 | Ca | < 0.002 |
Sn | < 0.0001 | Ni | < 0.003 |
C | < 0.005 | Sb | < 0.001 |
K | < 0.002 | P | < 0.001 |
Bi | < 0.0001 | As | < 0.002 |