What is the ferro silicon used for?

Ferro Silicon
Ferro silicon is widely used in the steel industry, foundry industry, and other industrial production. It is an essential deoxidizer in the steelmaking industry.
It is used for precipitation deoxidation and diffusion deoxidation. Ferro Silicon is also used as an alloying agent in steel making. Adding a certain amount of silicon to steel can significantly improve the strength, hardness, and elasticity of steel, improve the permeability of steel, and reduce the hysteresis loss of transformer steel.
Silicon in general steel is 0.15%-0.35%; silicon in structural steel is 0.40%-1.75%; silicon in tool steel is 0.30%-1.80%; silicon in spring steel is 0.40%-2.80%; silicon in stainless acid-resistant steel is 3.40%-4.00%; silicon in heat-resistant steel is 1.00%-3.00%; Silicon steel contains 2 ~ 3% or more silicon.
Ferro silicon is used as a reducing agent in the ferroalloy industry to produce low-carbon ferroalloys. The addition of ferrosilicon to cast iron can be used as an 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.
In addition, ferrosilicon powder can be used as a suspension phase in the mineral processing industry, in the electrode manufacturing industry for electrode coating; High silicon ferro silicon in the electrical industry can be used to prepare semiconductor pure silicon, and in the chemical industry can be used to manufacture silicone.
Each ton of steel produces about 3 to 5kg of 75% ferrosilicon consumption, in the steel-making industry.
Melting point: 75% FeSi is 1300℃.
Ferro silicon contains a small amount of phosphorus metal compounds, such as calcium phosphide, etc., in-vehicle transport or warehouse storage, if affected by moisture, phosphine can be released, so that the warehouse or around the population is poisoned. Phosphine poisoning can cause death in the severe cases.

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