China Ferro Silicon 72% Lump 10-50mm - High-Quality Raw Materials from Trusted Suppliers & Factory for Steel Production

Used as a deoxidizer and alloying agent. The high chemical affinity between silicon and oxygen makes ferrosilicon a strong deoxidizer for precipitation and diffusion. Adding silicon significantly improves steel strength, hardness, and elasticity.

In addition, silicon iron powder is often used as a heating agent for steel ingot caps to improve the quality and recovery rate of steel ingots due to its ability to release a large amount of heat at high temperatures.

Used as an inoculant and spheroidizer. Adding ferrosilicon to cast iron prevents the formation of carbides in iron and promotes the precipitation and spheroidization of graphite.

This is crucial in ductile iron production, where mechanical properties reach or approach those of steel while maintaining superior casting performance and seismic resistance.

Used as a reducing agent in the production of ferroalloys. High silicon ferrosilicon (or silicon alloy) features very low carbon content combined with high chemical affinity between silicon and oxygen.

This makes it a widely used and highly effective reducing agent for manufacturing low-carbon ferroalloys within the ferroalloy industry.

75# ferrosilicon is commonly used in the high-temperature smelting process of magnesium metal via the Pidgeon process, where CaO is added to replace magnesium in MgO.

This process consumes approximately 1.2 tons of ferrosilicon for every ton of metallic magnesium produced, playing a significant role in magnesium production.