Ferro Silicon is an alloy of silicon and iron. Silicon acts as a strong steel oxidant. Used primarily in special steels and in small quantities in mild steel. Ferro silicon is mainly used for the production of carbon & other alloy steels, stainless steel, cast iron, and electric steel. Ferro silicon is also used for manufacture of silicon, corrosion-resistant and high-temperature resistant ferrous silicon alloys, and silicon steel for electromotor and transformer cores.