Ferro Silicon (Fe Si) an alloy of iron and silicon. The average silicon content varies between 15 and 90 wt%. It contains a high proportion of iron silicides. Ferro Silicon is produced by reduction of silica or sand with coke in presence of iron.
Ferro Silicon is known to possess good resistance to abrasion, good resistance to corrosion, high specific gravity, and
high magnetism, which allows easy magnetic recovery. The melting point and density of Ferro Silicon depends on its
silicon content and it is available at a low cost.