What are the applications of ferrosilicon in steel industry and foundry industry?

Ferrosilicon is widely used in iron and steel industry, foundry industry and other industrial production. Ferrosilicon is an essential deoxidizer in steelmaking industry. In torch steel, ferrosilicon is used for precipitation deoxidation and diffusion deoxidation. Brick iron is also used as alloying agent for steelmaking. Adding a certain amount of silicon into steel can significantly improve the strength, hardness and elasticity of steel, improve the magnetic permeability of steel and reduce the hysteresis loss of transformer steel. General steel contains 0. 15%-0.35% silicon, structural steel contains 0.40%- 1.75% silicon, tool steel contains 0.30%- 1.80% silicon, spring steel contains 0.40%-2.80% silicon, and stainless acid-resistant steel contains. Ferroalloy industry uses high silicon ferrosilicon or silicon alloy as reducing agent to produce low carbon ferroalloy. Adding ferrosilicon to cast iron can be used as inoculant for nodular cast iron, which can prevent the formation of carbide, promote the precipitation and spheroidization of graphite and improve the properties of cast iron.