Silicon Metal Powder
Silicon Metal Powder
Silicon Metal Powder
Silicon Metal Powder

Silicon Metal Powder

Our company can provide metal silicon powder and high-purity silicon powder of grades 553, 441, 421, 411, 3303, 2202, 1101, 3N (99.9%), 4N (99.99%), 5N (99.999%), 6N (99.9999%) for industries such as organic silicon, polycrystalline silicon, trichlorosilane, metallurgy, refractory materials, and chemical engineering, with an annual production capacity of 500000 tons. It can produce various particle sizes such as 0-1mm, 1-3mm, 2-5mm, 3-8mm, 100 mesh, 200 mesh, 325 mesh, etc. for conventional use. Polycrystalline silicon and trichlorosilane require silicon powder with different particle sizes such as 20-100 mesh, 30-120 mesh, 40-160 mesh, 100-200 mesh, 45-325 mesh, and 50-500 mesh. etc.

Our company also produces ultrafine silicon powder, with general specifications including D50: 20 microns, 18 microns, 16 microns, 14 microns, 12 microns, 10 microns, 8 microns, 5 microns, 1.5 microns, etc. The particle morphology is smooth and the particle size is uniform. Especially suitable for use in industries such as silicon nitride manufacturing, special alloys, military industry, electronics, etc. We can customize various sizes and purity specifications of silicon powder and nano silicon powder according to customer requirements.


1. Our company's silicon powder production line has a high degree of automation, and silicon materials are crushed, transported, screened, and packaged in a closed production line.

2. The silicon powder production process has the advantages of no pollution, low noise, high efficiency, uniform particle size, good particle shape, maximum preservation of the original nature of silicon, and high silicon powder activity (chemical conversion rate).


1) Silicon Metal Powder is widely used in refractory materials and powder metallurgy industries to improve the high temperature resistance, wear resistance and oxidation resistance of products. Its products are widely used in steelmaking furnaces, kilns, kiln furniture.

2) In the silicone chemical industry, Silicon Metal Powder is the basic raw material for the synthesis of silicone polymers, such as for the production of silicon monomers, silicone oil, silicone rubber agent, so as to improve the product's high temperature resistance, electrical insulation, corrosion resistance, waterproof and other characteristics.

3) Silicon Metal Powder is synthesized and gradually purified to generate polysilicon, which is the most basic raw material for current green energy-solar cells.

4) Silicon Metal Powder is synthesized to make polysilicon and then drawn into monocrystalline silicon. Silicon wafers processed by slicing are widely used in high-tech fields and are indispensable raw materials for integrated circuits and electronic components.

5) In the metallurgical casting industry, Silicon Metal Powder is used as a non-iron-based alloy additive and silicon steel alloy agent to improve steel hardenability. Silicon Metal Powder can also be used as a reducing agent for some metals, for new ceramic alloys, etc.


Silicon powder Size   (mesh) Chemical Composition %
Si Fe Al Ca
 silicon powder
Si-(30-120 mesh) 99.6 0.2 0.2 0.02
Si-(40-140 mesh) 99.2 0.4 0.2 0.1
Si-(40-160 mesh) 99 0.4 0.4 0.1
Si-(40-120 mesh) 98.5 0.5 0.5 0.3
Si-(40-425 mesh) 98 0.6 0.5 0.3
Silicon powder for refractory -150 mesh 99.6 0.2 0.15 0.05
-200 mesh 99.2 0.4 0.2 0.1
-325 mesh 99 0.4 0.4 0.1
-400 mesh 98.5 0.5 0.5 0.3
-600mesh 98 0.6 0.5 0.3
Low-grade -200 mesh 95-97 Impurity content≤3.0%
Chemical composition/Size/Packing can be adjusted according to customer’s requirements;

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