Ferrosilicon (FeSi) is a ferroalloy made up of iron and silicon. It is used as an additive in the production of steel and cast iron, and is also used as a deoxidizer and inoculant in the production of nonferrous metals.
Ferrosilicon is produced by melting a mixture of iron and silicon in an electric furnace. The silicon content of the ferrosilicon can be varied by adjusting the ratio of iron to silicon in the mixture.
Ferrosilicon is a brittle, hard, and dense material with a metallic luster. It has a high melting point and is a good conductor of electricity. Its silicon content can range from 10% to 90%, with higher silicon content leading to a lower melting point.