Use and composition of ferrosilicon 72

  Ferro silicon 72 is a type of ferro silicon , which is classified into 21 grades according to the content of silicon and its impurities.The main raw material for smelting ferrosilicon is silica ore (quartz and silica). The SiO2 in ores is generally required to be higher than 96%. Fesi72 is a common grade of ferrosilicon.

  Ferro silicon 72 is made from coke, steel chips, quartz (or silica) and smelted in an electric furnace.Traditionally, ferro silicon is made by reducing the silicon from the silica containing SIO2.Most smelting of ferro silicon uses metallurgical coke as reducing agent, and steel chip is the regulator of ferrosilicon.Its main use is an excellent deoxidizer, used for precipitation deoxidization and diffusion deoxidization in steelmaking, which can effectively improve the strength, hardness and elasticity of steel, improve the permeability of steel, and reduce the hysteresis loss of transformer steel.
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