company news about What are the grades and functions of ferrosilicon?

Several common brands of ferrosilicon

1. Ferrosilicon 75, which generally contains 75% silicon and has low carbon, phosphorus and sulfur content.

2. Ferrosilicon 72, which usually contains 72% silicon, with intermediate carbon, sulfur and phosphorus content.

3. Ferrosilicon 65, ferrosilicon containing 65% silicon, has relatively high carbon, sulfur and phosphorus content.

The role of ferrosilicon in steelmaking:

Used as deoxidizer and alloying agent in steelmaking industry. In order to obtain steel with qualified chemical composition and ensure the quality of steel, deoxidation must be carried out in the final stage of steelmaking. The chemical affinity between silicon and oxygen is very large, so ferrosilicon is a strong deoxidizer used in steelmaking. Precipitation and diffusion deoxidation.

The role of ferrosilicon in cast iron:

Used as inoculant and spheroidizing agent in the cast iron industry. Cast iron is an important metal material in modern industry. It is cheaper than steel, easy to melt and smelt, has excellent casting properties and is much better than steel in earthquake resistance. Adding a certain amount of ferrosilicon to cast iron can prevent the iron from It forms carbides and promotes the precipitation and spheroidization of graphite. Therefore, ferrosilicon is an important inoculant and spheroidizing agent in the production of ductile iron.

The role of ferrosilicon in ferroalloy production:

Used as reducing agent in ferroalloy production. Not only is the chemical affinity between silicon and oxygen very high, but the carbon content of high-silicon ferrosilicon is very low. Therefore, high-silicon ferrosilicon is a commonly used reducing agent in the ferroalloy industry when producing low-carbon ferroalloys.