Ferrosilicon

It is commonly used as a deoxidizer in steelmaking and as a reducing agent in ferroalloy production and the chemical industry.

Ferrosilicon is an alloy of iron and silicon that is made by reducing silica in the presence of iron, and which plays an essential role in steelmaking.

Silicon iron, also known as ferrosilicon, is a ferroalloy composed of iron and silicon, with a silicon content ranging from 15% to 90%. It is commonly used as a deoxidizer in steelmaking and as a reducing agent in ferroalloy production and the chemical industry. In the steelmaking industry, approximately 3-5 kg of 75% ferrosilicon is consumed to produce one ton of steel. Ferrosilicon can also be used as an alloying element additive, which is widely used in low alloy structural steel, spring steel, bearing steel, heat-resistant steel, and electrical silicon steel.

Ferrosilicon is also used in the production of cast iron, as it helps to control the initial content of silicon in the melt, which is important for the microstructure and properties of the final product. Ferrosilicon cast magnesium is an alloy that contains magnesium and is used as a nodulizer in the production of ductile iron. It has a big mechanical strength, and the effect of deoxidization and desulfurization is strong. Modifiers are added to molten metal to change its properties, and ferrosilicon is one of the most commonly used modifiers in the production of cast iron. The material forming the base Ferrosilicon analysis ferrosilico cast magnesium and modifiers.

The role of Ferrosilicon in Steelmaking:

In steelmaking, Ferrosilicon is used for:

Advantages
Product performance – Ferrosilicon is a convenient way of adding silicon as an alloying element, to improve various properties of the final steel.
Slag reduction – In the manufacture of stainless steels, the presence of silicon reduces chromium oxides in the melt, improving recovery of metallic chromium.
Deoxidation – Ferrosilicon provides quick-acting removal of oxygen from the melt, so avoiding the presence of inclusion-forming oxides and avoiding loss of desirable elements.
Fuel – Some steel mills add Ferrosilicon to the melt so that it can be burnt off to get heat into the furnace, and so reduce energy costs.

Product Specifications
Grain Size Analysis:
Under size: 1-3%
, ( 10 - 60 ) mm: 90-94%
, Over size: 5-7%
Chemical Analysis:
SI: 70-75% , Al: < 2.2% , C: <0.2% , P: <0.05% , S: < 0.04%