Product Introduction
Ferrosilicon (FeSi) is a ferroalloy composed of iron (Fe) and silicon (Si). It is produced by reducing silica (SiO₂) in the presence of iron using electric arc furnaces. Ferrosilicon typically contains Silicon ranging from 15% to 90%, with FeSi 75% and FeSi 72% being the most commonly used industrial grades.
It is widely used as a deoxidizing agent, alloying element, and inoculant in steelmaking and cast iron production, making it an indispensable material in modern metallurgy. 🌍
Specification
| Grade |
|
Al (%) Max | C (%) Max | S (%) Max | P (%) Max | Size (mm) |
|---|---|---|---|---|---|---|
| FeSi 75% | 75±1 | 1.5 | 0.2 |
|
0.04 | 10–50 / 10–100 |
| FeSi 72% | 72±1 | 1.5 | 0.2 |
|
0.04 | 10–60 / 0–3 |
| FeSi 65% | 65±1 | 2.0 | 0.3 |
|
0.05 | 0–1 / 1–10 / lump |
Key Features & Benefits
✅ Powerful Deoxidizer
Silicon in ferrosilicon reacts easily with oxygen, forming silicon dioxide (SiO₂), which removes oxygen from molten metal. This helps purify steel and improves its overall quality.
✅ Improves Steel Strength
FeSi enhances mechanical properties like hardness, strength, and elasticity, especially in high-strength and structural steels. 💪
✅ Enhances Castability
In cast iron production, ferrosilicon improves graphite formation and fluidity, resulting in better casting surfaces and reduced defects.
✅ Boosts Corrosion & Heat Resistance
Silicon improves the oxidation resistance and thermal stability of steel, especially in stainless and heat-resistant alloys. 🔥
✅ Reduces Shrinkage in Castings
FeSi helps promote uniform solidification, minimizing porosity and shrinkage during the casting process.
✅ Flexible Size Options
Available in various particle sizes to suit different applications and feeding systems - from fine powders to large lumps. 📦
Application
Ferro Silicon is a cornerstone material in multiple industries and processes:
🔩 Steel Industry
Used as a deoxidizer and alloying agent in carbon steels, stainless steels, and silicon steels.
Essential in the production of high-strength low-alloy (HSLA) steels, electrical steels, and spring steels.
🏭 Foundry Industry
Enhances fluidity and structure in grey and ductile cast iron production.
Applied as an inoculant to improve graphite formation.
⚗️ Ferroalloy Production
Used as a reducing agent in the manufacture of other ferroalloys like ferro manganese, ferro chrome, and ferro tungsten.
🔥 Magnesium & Aluminum Industries
Acts as a source of silicon in the production of magnesium via the Pidgeon process.
Added to aluminum alloys for improved casting and machining properties.
Conclusion
Ferrosilicon is not just a raw material - it is a strategic alloying agent that plays a vital role in producing high-performance steels and cast irons. With its superior deoxidizing capability, mechanical enhancement properties, and cost-effectiveness, FeSi continues to be a cornerstone of the global metallurgy industry. 🌐
👉 Whether you're in steel production, foundry operations, or ferroalloy manufacturing, Ferrosilicon is a solution you can rely on for quality, consistency, and efficiency.
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