| Product | Tungsten Powder (W Powder) |
| Part Number | TRM-WP |
| Purity | 99.95% Trace Metal Basis |
| CAS Number | 7440-33-7 |
Tungsten powder is made by hydrogen reduction of tungsten oxide or ammonium paratungstate (APT). The properties of the tungsten powder, such as purity and particle size, mainly depend on the reduction process. In the reduction of tungsten powder in tubular furnace, the main process parameters affecting reduction rate are reduction temperature, loading capacity of tungsten oxide, burning boat speed, hydrogen flow rate and moisture content in hydrogen. With the increase of reduction temperature, the grain size of tungsten powder becomes bigger. The typical range of the particle size is 0.4-30 µm by hydrogen reduction. We can provide crystalline tungsten powder with the particle size over 30 µm. Custom work is available, please contact us for RFQ.
Typical application: Tungsten powder is the material of tungsten product, tungsten carbide and tungsten alloy. It can be mixed with other metal powders and then made into tungsten-molybdenum alloy, tungsten-rhenium alloy, tungsten-copper alloy and high density tungsten alloy. Besides, it is used in emerging industry in recent years like anti-radiation fabric and fire-proof clothing.
Features and Relative Products:
Order Information
Inquiries and orders should include the following information:
- Quantity
- Particle Size
Chemical Composition
| W | 99.95% | Bi | ≤0.0001 |
| Fe | ≤0.005 | Sn | ≤0.0003 |
| Al | ≤0.001 | Sb | ≤0.001 |
| Si | ≤0.002 | Ca | ≤0.002 |
| Mg | ≤0.001 | Mo | ≤0.005 |
| Mn | ≤0.001 | K+Na | ≤0.003 |
| Ni | ≤0.003 | P | ≤0.001 |
| As | ≤0.0015 | C | ≤0.005 |
| Pb | ≤0.0001 |
Particle Size and Oxygen Content
| Item Code | Particle Size (µm) | Oxygen Content (%) Max. |
| WP-01 | BET: ≤0.10 | 0.6 |
| WP-02 | BET: ≤0.15 | 0.5 |
| WP-03 | 0.8-1.0 | 0.4 |
| WP-04 | 1.0-1.5 | 0.25 |
| WP-05 | 1.5-2.0 | 0.2 |
| WP-06 | 2.0-2.5 | 0.15 |
| WP-07 | 2.5-3.0 | 0.15 |
| WP-08 | 3.0-4.0 | 0.15 |
| WP-09 | 4.0-5.0 | 0.1 |
| WP-10 | 5.0-7.0 | 0.1 |
| WP-11 | 7.0-10.0 | 0.1 |
| WP-12 | 10.0-15.0 | 0.1 |
| WP-13 | 15.0-20.0 | 0.1 |
| WP-14 | 20.0-30.0 | 0.1 |
| WP-15 | >30 | 0.1 |
*Custom work is available. Special requirements to be agreed upon by both parties.
Standard Packing
Packed in iron drums of 25 kg or 50 kg net each with inner double plastic bags. Special package is available on request.
Physical Properties – Tungsten Powder
| Form | Powder |
| Color | Light gray or dark gray |
| Melting Point | 3410°C |
| Boiling Point | 5660°C |
