(1) Used as a deoxidizer and alloying agent in the steelmaking industry. In order to obtain steel with qualified chemical composition and ensure the quality of steel, deoxidation must be carried out in the post-steelmaking stage. The chemical affinity between silicon and oxygen is very large, so ferrosilicon is a strong deoxidizer for steelmaking and is used for precipitation and diffusion deoxidation. Adding a certain amount of silicon to steel can significantly improve the strength, hardness and elasticity of the steel. Therefore, ferrosilicon is also used as an alloying agent when smelting structural steel (containing 0.40-1.75% silicon), tool steel (containing SiO.30-1.8%), spring steel (containing SiO.40-2.8%) and silicon steel for transformers (containing 2.81-4.8%).
In addition, in the steelmaking industry, ferro silicon powder is often used as a heating agent for steel ingot caps to improve the quality and recovery rate of steel ingots, taking advantage of the characteristic that it can release a large amount of heat when burned at high temperatures.
(2) Used as an inoculant and spheroidizer in the cast iron industry. Cast iron is an important metal material in modern industry. It is cheaper than steel, easier to melt and smelt, has excellent casting properties and much better seismic resistance than steel, especially ductile iron, whose mechanical properties reach or approach those of steel. Adding a certain amount of ferro silicon to cast iron can prevent the formation of carbides in iron and promote the precipitation and spheroidization of graphite. Therefore, in the production of ductile iron, ferro silicon is an important inoculant (helping to precipitate graphite) and spheroidizer.
(3) Used as a reducing agent in iron. Not only is the chemical affinity between silicon and oxygen very large, but the carbon content of high-silicon ferrosilicon is also very low. Therefore, high-silicon ferro silicon (or siliceous alloy) is a relatively common reducing agent in the production of low-carbon ferro alloys in the ferro alloy industry.
(4) Uses in other aspects. Ground or atomized ferrosilicon powder can be used as a suspension phase in the mineral processing industry. It can be used as a coating for welding rods in the welding rod manufacturing industry. High-silicon ferro silicon can be used to manufacture silicone and other products in the chemical industry.
Henan Tiesheng Alloy New Materials Co., Ltd. is a professional manufacturer and supplier of alloy products such as inoculants, carburizing agents, alloy cored wires, silicon carbide, silicon-carbon alloys, and slag removers. With nearly two decades of experience in the production and sales of ferroalloys, the company’s products are sold worldwide. Our partners include major steel manufacturers and others. Our products have passed the ISO quality system certification. If you have any product needs, please contact Henan Tiesheng Alloy New Materials Co., Ltd.
