1. Steelmaking
Deoxidizer
- In the steelmaking process, 75% ferrosilicon natural blocks serve as an effective deoxidizer, removing oxygen from molten steel, reducing pores and inclusions, and improving steel purity and quality.
- When added to molten steel at high temperatures, 75# ferrosilicon fully melts and reacts, facilitating both deoxidation and alloying.
- It forms stable oxides that can be easily separated from molten steel, further enhancing steel purity.
Alloying Element Additive
- 75% ferrosilicon acts as an alloying additive, adjusting silicon content to enhance the mechanical properties of steel.
- Increasing silicon content improves strength, hardness, and corrosion resistance, making it suitable for producing high-strength and high-hardness steel products.
2. Foundry Industry
Inoculant
- In the foundry industry, 75% ferrosilicon natural blocks are used as inoculants to refine the microstructure and enhance the mechanical properties of cast iron.
- Proper addition promotes graphite precipitation and spheroidization, reducing pores and inclusions while improving the strength and toughness of cast iron.
Spheroidizing Agent
- 75% ferrosilicon plays a crucial role as a spheroidizing agent in ductile iron production.
- By reacting with magnesium and other elements in cast iron, it promotes the formation of spheroidal graphite, enhancing mechanical properties and wear resistance.
3. Ferroalloy Production
Reducing Agent
- In ferroalloy production, 75% ferrosilicon is widely used as a reducing agent.
- It reacts with metal oxides to produce the desired metals or ferroalloys, contributing to the production of low-carbon ferroalloys.
4. Other Applications
Semiconductor Materials
- The high silicon content in 75% ferrosilicon makes it suitable for semiconductor manufacturing, including the production of silicon wafers.
- These wafers form the foundation of modern electronic devices, significantly improving their performance and stability.
Chemical Raw Material
- In the chemical industry, 75% ferrosilicon is used to produce silicides, such as potassium silicate and sodium silicate.
- These compounds have essential applications in industries like construction, ceramics, and coatings.
Manufacturing of Mechanical Parts & Tools
- Due to its stable chemical composition and strength, 75% ferrosilicon is also utilized in the manufacturing of mechanical components and tools, ensuring durability and reliability.

