1. Introduction to the classification of ferrosilicon grades
Ferrosilicon is an alloy produced by smelting ore or scrap steel, with a silicon content between 70% and 90%. It also contains a certain amount of iron, aluminum, calcium and other elements. Ferrosilicon can be divided into multiple grades according to its alloying degree and silicon content.
1.) Conventional ferrosilicon
Conventional ferrosilicon is ferrosilicon with a silicon content between 70% and 75%, and is the most commonly used grade. It is widely used in steel production, mainly used to reduce the carbon and sulfur content of steel and improve the toughness and plasticity of steel.
2. )Energy storage ferrosilicon
Energy storage ferrosilicon can be divided into high carbon energy storage ferrosilicon and low carbon energy storage ferrosilicon. It is a ferrosilicon alloy with a silicon content of more than 85%. It has energy storage properties, can release stored thermal energy, accelerate the solidification of molten iron, increase the discharge speed of molten iron, and effectively reduce waste and energy consumption in steel production.
3.) Low aluminum ferrosilicon
Low aluminum ferrosilicon is a ferrosilicon alloy with a silicon content between 70% and 75% and an aluminum content of less than 1%. It is characterized by low aluminum content, good reduction performance, and stable silicide effect. It is widely used in the steel and foundry industries and can be used to produce special steels and high-quality castings.

2. The uses and characteristics of each brand
1.) Conventional ferrosilicon
Conventional ferrosilicon is mainly used in steel production to play the roles of decarburization, desulfurization, and mixture reduction. It is off-white, lumpy or spherical, easy to melt, and can be fully mixed with molten iron to evenly distribute alloy elements.
2.) Energy storage ferrosilicon
High-carbon energy storage ferrosilicon is mainly used in casting production, which can quickly solidify molten iron, reduce waste and improve production efficiency. Low-carbon energy storage ferrosilicon is mainly used in steel production, which can improve the pouring process, increase the discharge speed of molten iron, and streamline the production process.
3.) Low aluminum ferrosilicon
Low aluminum ferrosilicon can reduce the oxygen content in molten steel, improve the physical properties of steel, and increase the plasticity and ductility of steel. It can also reduce breakdown and hydrogen-induced embrittlement in molten steel and improve the quality and reliability of castings.