Production of tungsten powder
TU 48-19-72-92
GRADES OF TUNGSTEN POWDER
| Mark | Powder name | Feedstock |
| PVN | Low-active | Ammonium low-molybdenum paratungstate or WO3 of (NH4)5 H5[H2(WO4)6]-H2 O grade A |
| PVV | Highly active | High-purity ammonium paratungstate or WO3 of (NH4)5 H5[H2(WO4)6]-H2 O grade A |
| PVT | Technical | Ammonium paratungstate or WO3 of (NH4)5 H5[H2(WO4)6]-H2 O |
PERCENTAGE COMPOSITION OF TUNGSTEN POWDER
| Element | Mass fraction, %, max | ||
| PVN | PVV | PVT | |
| Fe | 0,008 | 0,006 | 0,02 |
| Al | 0,001 | 0,001 | 0,002 |
| Si | 0,003 | 0,002 | 0,005 |
| Ca | 0,005 | 0,002 | 0,0050 |
| Ni | --- "--- | 0,0050 | 0,008 |
| P | --- "--- | 0,0040 | 0.0050 |
| S | 0,004 | 0,004 | 0,004 |
| Mo | 0,04 | 0,02 | 0,2 |
| C | 0,003 | 0,0030 | 0,003 |
| As | 0,005 | 0,0030 | 0,03 |
| K | 0,02 | 0,02 | 0,02 |
| Na | 0,015 | 0,01 | 0,02 |
O2 + moisture |
0,25 | 0,35 | 0,2 |
| Mass fraction of tungsten | basis | basis | basis |
DISPERSITY OF TUNGSTEN POWDERS
The content of grains larger than 4 μm in low-active tungsten powders must not exceed 40%. Bulk density of tungsten powders must be in the range of 3.0-15.5 g/cm3.
| Powder grade | Mean Fischer grain diameter, mcm |
| PVN | 3,5-6,0 |
| PVV | 0,8-1,7 |
| PVT | 3,5-6,0 |
Furnizor
We offer to buy tungsten powder from specialized warehouses of the supplier Evek GmbH with delivery in any city. Full compliance with GOST requirements. Supplier Evek GmbH offers to buy tungsten powder, the price is optimal in this segment of metal products.
Buy, bargain price
Supplier Evek GmbH offers tungsten powder, price - determined by the technological features of production without including additional costs. The company's website displays information about the latest arrivals of products. We invite you to partner cooperation.
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