Industrial silicon powder, also known as silicon metal powder, is a silver-grey or dark-grey powder with a metallic luster. It has a high melting point, good heat resistance, high resistivity, and a high degree of antioxidant effect. It is called "industrial MSG" and is an indispensable basic raw material for many high-tech industries.

Silicon metal powder 99% is a very fine powder, and its size is usually around 1 micron. Because its particles are extremely small, it has a very large specific surface area, which makes it very efficient in catalytic reactions and other aspects.

silicon metal powder

chemical composition

Grade	Chemical composition	553	441	421	3303	2503	2202
	Si ≥	98.5%	99%	99%	99%	99%	99%
	Fe ≤	0.5%	0.4%	0.4%	0.3%	0.2%	0.2%
	Al ≤	0.5%	0.4%	0.2%	0.3%	0.5%	0.2%
	Ca ≤	0.3%	0.1%	0.1%	0.03%	0.03%	0.02%
	size	40-120 mesh,45-325 mesh, -200 mesh, -325 mesh.etc
	Note: All grades of silicon metal from our company can be used for processing, and the size can also be processed according to your requirements.
Package	25 kg/bag or 1 ton/bag

Performance of silicon metal powder 99%

High temperature resistance.

The melting point of silicon metal is 3850±50℃ and the boiling point is 4250℃. Even with ultra-high temperature arc combustion, the weight loss and thermal expansion coefficient are very small. The strength of silicon metal increases with the increase of temperature, and the strength of silicon metal doubles at 2000℃.

Electrical conductivity and thermal conductivity.

The electrical conductivity of silicon metal is one hundred times higher than that of general non-metallic minerals. The thermal conductivity exceeds that of metal materials such as steel, iron, and lead. The thermal conductivity decreases with the increase of temperature, and even silicon metal becomes an insulator at high temperature. Silicon metal can conduct electricity because each carbon atom in silicon metal only forms three covalent bonds with other carbon atoms, and each carbon atom also retains a free electron to transfer charge.

Lubricity.

The lubricity of silicon metal depends on the size of silicon metal flakes. The larger the flakes, the smaller the friction coefficient and the better the lubricity.

Chemical stability:

Silicon metal has good chemical stability at room temperature and can resist corrosion from acids, alkalis and organic solvents.

Plasticity.

Silicon metal has good toughness and can be ground into thin sheets.

Thermal shock resistance.

Silicon metal can withstand drastic temperature changes at room temperature without being damaged. When the temperature changes suddenly, the volume of silicon metal does not change much and no cracks will appear.

Silicon metal powder 99%

About Our Company

Henan Aon Metal and Materials Co., Limited , established in 2008 and headquartered in Anyang City, Henan Province, China, is a modern enterprise specializing in the production and sales of ferroalloy materials. Our factory is located in Jinjie Industrial Park, Shenmu City, Shaanxi Province.

Our factory is equipped with two 36,000KVA blast furnaces, We have a total of 18 intermediate frequency furnaces, Additionally, we have three automatic crushing lines with corresponding vibrating screens.At full production capacity, we can produce approximately 11,000 tons per month and over 130,000 tons per year. We have three large warehouses located in Tianjin, Anyang, and Shenmu City.