Ferrosilicon FeSi 75/65 | High Purity Silicon Iron for Steel Refining, Alloy Steel & Foundry | 10–50mm / 10–100mm

Steelmakers and foundries frequently face operational challenges when using ferrosilicon:

• Silicon yield loss due to oxidation and fines
• Inconsistent silicon addition affecting alloy steel quality
• Graphitization and melt uniformity issues in cast iron production
• Increased costs from repeated alloying corrections

Ferrosilicon FeSi 75/65 from ZhenAn is designed to deliver high silicon purity, precise particle sizing, and industrial-grade consistency, ensuring reliable steel refining, alloying, and casting performance.

• Silicon (Si): approx. 65%
• Moderate deoxidation strength suitable for standard steel grades
• Supports carbon steel, low-alloy steel, and conventional foundry iron
• Optimized for predictable melt behavior and cost-efficiency

• Silicon (Si): approx. 75%
• Strong deoxidizer for high-grade and alloy steels
• Fast melting with high silicon recovery
• Ideal for stainless steel, specialty alloys, and low-oxygen steel grades

Selecting the appropriate FeSi grade ensures stable steel chemistry, consistent alloying, and reduced production variability.

Chemical composition can be tailored for specific steel grades or foundry requirements.

• 10–50mm – fine granules for rapid melting in ladle treatment and secondary metallurgy
• 10–100mm – standard size for EAF, BOF, and foundry charging

Precise particle sizing minimizes fines, improves silicon recovery, and ensures consistent furnace performance.

• Primary and secondary deoxidation in carbon and alloy steels
• Silicon trimming for precise chemistry control
• Supports clean steel production with reduced inclusions

• Graphitization promoter in gray and ductile iron
• Stabilizes melt fluidity and improves casting surface quality
• Provides predictable silicon input for repeatable foundry results

• Base silicon source for specialty alloys
• Reducing agent in metallurgical reactions
• Raw material for silicon-based industrial and chemical processes

ZhenAn manufactures Ferrosilicon FeSi 75/65 via submerged electric arc furnace smelting, combining:

• High-purity quartz
• Low-impurity carbon reductants
• Controlled smelting, tapping, and cooling parameters

Post-production processes include crushing, grading, magnetic separation, and batch chemical verification, ensuring consistent industrial-grade performance.

Each batch of Ferrosilicon FeSi 75/65 is rigorously tested for:

• Stable silicon content
• Low sulfur and phosphorus
• Controlled aluminum and carbon levels
• Consistent particle size distribution

This ensures furnace efficiency, optimized alloy usage, and reliable metallurgical results.

• 1 MT jumbo bags
• 25 kg bags palletized
• Bulk shipment for long-term contracts

Packaging protects against moisture and oxidation, maintaining FeSi quality during storage and transport.

• 30+ years of ferroalloy production expertise
• Specialized in steelmaking-grade, foundry-grade, and alloying FeSi
• Flexible specifications and particle sizes
• Reliable long-term industrial supply

ZhenAn works with customers who prioritize stable metallurgical performance, high silicon recovery, and process reliability.