Ferrosilicon is a highly versatile alloying agent, used in the production of steel and cast iron. The addition of silicon to steel improves the overall mechanical properties of steel, making it more wear-resistant, increasing its hardness and improving its electrical properties. This makes the alloying process a crucial step in the production of specialised steel for industries such as automotive, aerospace and electrical.
In the production of cast iron, ferrosilicon is also used to improve the fluidity and final properties of the metal. The addition of ferrosilicon promotes the formation of graphite during the solidification of cast iron, which is necessary for the production of grey and ductile iron. The presence of silicon in the alloy helps control the shape and distribution of graphite flakes, significantly improving the machinability, toughness and strength of the casting.
