What Is Ferrosilicon?

Ferrosilicon (FeSi) is a ferroalloy composed primarily of iron (Fe) and silicon (Si), with a silicon content typically ranging between 15% and 90%. It is produced by reducing silica (SiO₂) with carbon in an electric arc furnace, resulting in a high-energy-demanding smelting process.  

Key Properties & Applications
- Deoxidizer in Steelmaking: Ferrosilicon is widely used to remove oxygen from molten steel, improving strength and quality.  
- Alloying Agent: It enhances steel properties such as corrosion resistance, magnetic permeability, and heat resistance.  
- Cast Iron Production: In foundries, it promotes graphite formation, enhancing machinability and durability.  
- Other Uses: FeSi is utilized in manufacturing magnesium (via the Pidgeon process), semiconductors, and as a dense medium in mining.  

Grades & Specifications
Common grades include **FeSi75 (75% Si), FeSi74 (74% Si), FeSi72 (72% Si) , FeSi70 (70% Si)andFeSi65 (65% Si), with varying levels of impurities like aluminum, carbon, and sulfur.  

Why Choose Ferrosilicon? 
Due to its cost-effectiveness and versatility, ferrosilicon remains a critical material in metallurgy and industrial applications. As a supplier, we ensure high-quality FeSi tailored to meet industry standards.  

For more details, contact us for specifications and pricing!