Silicon metal is a silver gray or dark gray powder with metallic luster, which has of high melting point, good heat resistance, high resistivity, and superior oxidation resistance, which is an essential basic raw material in the hi-tech industry.

The classification of silicon metal is usually classified according to the content of iron, aluminum, and calcium contained in the silicon metal components. According to the content of iron, aluminum, and calcium in silicon metal, silicon metal can be divided into 553 441 411 421 3303 3305 2202 2502 1501 1101 and other different brands.