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Ferromanganese is a ferroalloy with high manganese content. It is made by heating a mixture of the oxides MnO₂ and Fe₂O₃, with carbon in either a blast furnace or an electric arc furnace-type system, called a submerged arc furnace.
Ferroalloy refers to various alloys of iron with a high proportion of one or more other elements such as manganese, aluminium, or silicon. They are used in the production of steels and alloys.
Ferrosilicon is a strong deoxidizer used in steelmaking for precipitation and diffusion deoxidation. Adding a certain amount of silicon to the steel can significantly improve the strength, hardness and elasticity of the steel, therefore, ferrosilicon is also used as alloying agent in smelting structural steel (0.40-1.75% silicon) , tool steel (30-1.8% silicon) , spring steel …