What is the role of ferrosilicon in steelmaking? Here's a look:

In order to obtain the quality of steel and steel with qualified chemical composition, deoxygenation must be carried out in the later stages of steelmaking, and the chemical affinity between silicon and oxygen is very large, so ferrosilicon is a strong deoxidizer for steelmaking for precipitation and diffusion deoxygenation. Adding a certain amount of silicon to steel can improve the strength, hardness and elasticity of steel, so ferrosilicon is also used as an alloying agent when smelting structural steel (containing silicon 0.40-1.75%), tool steel (including SiO.30-1.8%), spring steel (including SiO.40-2.8%) and silicon steel for transformers (containing silicon 2.81-4.8%).

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