Rubber Seal for Small Hole Drilling Machine
November 26, 2024
Ferro Molybdenum
November 26, 2024
Ferro Tungsten
| Name | Information |
|---|---|
| Tungsten content | 70%-80% |
| Appearance | Silver grey metal |
| Size | 10 – 130mm |
| Packing | 100kg, 250kg each steel drum or 1MT big bag |
| Impurity | Mn, Si, C, S, Cu, P |
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Description:
Ferro Tungsten is prepared from wolframite by carbon reduction in an electric furnace. It is mainly used as alloying element additive for tungsten containing alloy steel (such as high-speed steel). There are three kinds of ferrotungsten produced in China, including w701, W702 and w65, with a tungsten content of about 65~70%. Due to the high melting point, it cannot flow out of the liquid, so it is produced by caking method or iron extraction method.
Application:
As the addition agent of tungsten in steel making and casting, it can improve the hardness, wear resistance and impact strength of steel. For high speed tool steel, alloy tool steel, heat-resistant steel, spring steel, steel production.
Chemical Composition (%):
| Grade | FEW BOW-A | FEW BOW-B | FEW BOW-C |
|---|---|---|---|
| W | 75%-80% | 75%-80% | 75%-80% |
| C | 0.1% max | 0.3% max | 0.6% max |
| P | 0.03% max | 0.04% max | 0.05% max |
| S | 0.06% max | 0.07% max | 0.08% max |
| Si | 0.5% max | 0.7% max | 0.7% max |
| Mn | 0.25% max | 0.35% max | 0.5% max |
| Cu | 0.1% max | 0.12% max | 0.15% max |
| As | 0.06% max | 0.08% max | 0.10% max |
| Bi | 0.05% max | 0.05% max | 0.05% max |
| Pb | 0.05% max | 0.05% max | 0.05% max |
| Sb | 0.05% max | 0.05% max | 0.05% max |
| Sn | 0.06% max | 0.08% max | 0.08% max |
| Size | 10-100mm, 5-50mm, 3-30mm | ||
