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Buy tungsten powder from HSG Metal! We specialize in producing high-purity tungsten metal powder suitable for a wide range of commercial and industrial applications.
Tungsten powder is a fine, grayish-black powder made from tungsten metal, which is known for its high melting point, density, and strength. This powder is produced through processes such as chemical reduction of tungsten oxide or tungsten trioxide with hydrogen or carbon. Tungsten powder is widely used in various applications due to its unique properties.
If you are looking for tungsten powder suppliers, we are your ideal choice. Our stringent quality assurance program ensures that our tungsten powders achieve an outstanding level of consistency and quality. Check the specifications of our tungsten powder in various grades. Feel free to us if you have any needs and questions.
Grade | Granularity(µ) | Oxygen content (%.Max) |
W-0 | 0.40-0.69 | 0.3 |
W-1 | 0.70-0.99 | 0.3 |
W-2 | 1.00-1.49 | 0.25 |
W-3 | 1.55-1.99 | 0.2 |
W-4 | 2.00-2.49 | 0.15 |
W-5 | 2.50-2.99 | 0.15 |
W-6 | 3.00-3.49 | 0.1 |
W-7 | 3.50-3.99 | 0.1 |
W-8 | 4.00-4.49 | 0.07 |
W-9 | 4.50-4.99 | 0.07 |
W-10 | 5.00-6.99 | 0.05 |
W-11 | 7.00-8.99 | 0.05 |
W-12 | 8.99-14.99 | 0.05 |
W-13 | 15.00-25.00 | 0.05 |
Tungsten powder is the main raw material for processing powder metallurgy tungsten products and tungsten alloys. Pure tungsten powder can be made into tungsten wires, tungsten rods, tungsten tubes, tungsten sheets, and other processing materials and certain shape products. Tungsten powder mixed with other metal powder can be made into a variety of tungsten alloys, such as tungsten molybdenum alloy, tungsten rhenium alloy, tungsten copper alloy, and high-density tungsten alloy.
Tungsten Carbide Production: A primary use of tungsten powder is in the creation of tungsten carbide powder, which is essential for manufacturing carbide tools like turning tools, milling cutters, drill bits, and dies.
Manufacturing Hard Alloys: Tungsten powder is instrumental in producing cemented carbides (hard metals) for cutting tools, drills, and wear-resistant components.
Aerospace and Defense: Owing to its high strength and density, tungsten powder is utilized in aerospace applications, military armor, and counterweights.
Electrode Manufacturing: It is used to produce electrodes for gas tungsten arc welding (GTAW) and other welding processes.
Electrical Contacts and Heating Elements: Tungsten powder is employed in applications that require high-temperature resistance and excellent electrical conductivity.
Additive Manufacturing: Increasingly, tungsten powder is being used in 3D printing technologies to create metal parts.
As one of the most experienced tungsten powder suppliers in China, HSG Metal specializes in providing high-quality and high-purity tungsten powder for various applications. Contact us if you have any needs!
It is prepared by hydrogen reduction of tungsten trioxide or ammonium paratungstate. The process of making tungsten powder by hydrogen reduction is generally divided into two stages: in the first stage, tungsten trioxide is reduced to tungsten dioxide at the temperature of 500~700oC; In the second stage, tungsten dioxide is reduced to tungsten powder at the temperature of 700~900oC. The reduction reaction is usually carried out in a tubular furnace or rotary furnace.
The properties of reduced tungsten powder (such as purity, particle size, particle size composition, etc.) mainly depend on the reduction process. When reducing tungsten powder in a tubular furnace, the main process parameters affecting the reduction rate are reduction temperature, the loading amount of tungsten oxide in the furnace, the moving speed of the furnace, the flow rate of hydrogen and the moisture content of hydrogen. With the increase of reduction temperature, the particle size of tungsten powder becomes coarser.
In addition to the hydrogen reduction method, tungsten oxide carbon reduction method was also used in the early stage, and the reduction temperature was higher than 1050oC. The tungsten powder obtained in this way is of low purity. In addition, the process of reducing tungsten oxide with aluminum, calcium and zinc is also in progress. For special applications requiring high purity and ultra-fine particle size tungsten powder, the reduction method of hydrogen tungsten chloride has been developed, and the particle size of tungsten powder can be less than 0.05μm.
High Purity: Available in high-purity grades (e.g., 99.95% pure)
High Density: Tungsten has a density of approximately 19.3 g/cm³, making it one of the densest metals.
High Melting Point: With a melting point of around 3422°C (6192°F), tungsten powder can withstand extreme temperatures without melting.
Low Thermal Expansion: Tungsten has a low coefficient of thermal expansion, making it stable under temperature changes.
Good Conductivity: Tungsten powder exhibits good electrical and thermal conductivity.
