Ferrotungsten 70 means that the tungsten content in ferrotungsten is ≥80%.
Ferrous tungsten is commonly used in lathe tools, impact drill bits, glass bits and tile cutters. It is hard and resistant to annealing, but brittle. It is a hard alloy.
Ferrotungsten 80
Ferrotungsten composition
| Grade | Chemical composition % | |||||||||||
| W | C | P | S | Si | Mn | Cu | As | Bi | Pb | Sb | Sn | |
| The following components are not greater than | ||||||||||||
| FeW80-A | 75.0~85.0 | 0.1 | 0.03 | 0.06 | 0.5 | 0.25 | 0.1 | 0.06 | 0.05 | 0.05 | 0.05 | 0.06 |
| FeW80-B | 75.0~85.0 | 0.3 | 0.04 | 0.07 | 0.7 | 0.35 | 0.12 | 0.08 | - | - | 0.05 | 0.08 |
| FeW80-C | 75.0~85.0 | 0.4 | 0.05 | 0.08 | 0.7 | 0.5 | 0.15 | 0.1 | - | - | 0.05 | 0.08 |
| FeW70 | ≥70.0 | 0.8 | 0.06 | 0.1 | 1 | 0.6 | 0.18 | 0.1 | - | - | 0.05 | 0.1 |
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