🧴 Product Name:
Ferrosilicon
🔬 Scientific Name:
Iron–Silicon Alloy
🏷️ Trade Names:
Ferrosilicon, FeSi, Ferro Silicon Alloy, Silicon Iron
⚛️ Chemical Formula:
FeSi (15%–90% Si content)
🧾 CAS Number:
8049-17-0
📦 HS Code:
7202.21
📘 Description:
Ferrosilicon is an iron-silicon alloy used primarily in steelmaking and foundries as a deoxidizer, silicon additive, and nucleating agent. It is produced by reducing silica with carbon in the presence of iron in electric arc furnaces.
⚗️ Physical & Chemical Properties:
| Property | Value |
| Appearance | Grey metallic solid |
| Density | 5.0–5.6 g/cm³ |
| Melting Point | 1210–1350°C |
| Silicon Content | 15%–90% |
🧪 Production Process:
Manufactured in electric arc furnaces by reducing quartz (SiO₂) with coke in the presence of iron.
🧯 Safety & Handling:
- Hazards: Dust can irritate respiratory system in high concentrations.
- Precautions: Use dust masks, gloves, and ventilation.
- Packaging: Jumbo bags (~1 ton)
- Storage & Transport: Store in dry conditions to avoid oxidation
📊 Grades & Applications:
| Grade Type | Silicon Content | Applications |
| FeSi 15% | 15% | Specialized iron casting |
| FeSi 45% | 45% | General steelmaking |
| FeSi 75% | 75% | Most common – steel and foundry |
| FeSi 90% | 90% | High-end castings and special alloys |
🌍 Exporting Countries:
China, Brazil, Norway, Russia, Iran
🌎 Importing Countries:
Turkey, India, USA, Germany, Egypt
🔎 SEO Keywords:
Ferrosilicon 75%, FeSi alloy, Buy ferrosilicon, Steelmaking additive, High-silicon FeSi
