Ferrosilicon is used to remove oxygen from the steel and as alloying element to improve the final quality of the steel. Silicon increases namely strength and wear resistance, elasticity (spring steels), scale resistance (heat resistant steels), and lowers electrical conductivity and magnetostriction (electrical steels). Special FeSi like low Al, High Purity and low C ferrosilicon are used in the production of special steel qualities for transformers/motors, ball bearings and shock absorbers, tyre cord steel and in stainless steel.
Elkem produces ferrosilicon at Elkem Iceland, at the Elkem Bjølvefossen plant in Norway and Elkem Chicoutimi in Quebec, Canada. The production programme covers all grades of ferrosilicon:
- Standard Grade Ferrosilicon
- Low Aluminium
- Low Carbon
- High Purity (low Titanium)