High Purity Ferrosilicon FeSi with Controlled Particle Sizes and 65% Silicon for

Steel and foundry operations require precise silicon addition for deoxidation and alloying. Common challenges include:

• Loss of silicon during furnace charging due to oxidation or fines
• Inconsistent silicon distribution impacting alloy steel quality
• Graphitization issues and unstable melt in gray or ductile iron
• Increased costs due to repeated alloying or corrective actions

Ferrosilicon Silicon Iron 65/75 from ZhenAn provides high-purity, industrial-grade FeSi with controlled particle sizes, ensuring predictable alloying, efficient deoxidation, and consistent foundry results.

• Silicon (Si): approx. 65%
• Moderate deoxidation capacity
• Suitable for carbon steel, low-alloy steel, and conventional foundry iron
• Optimized for cost-efficient alloying and predictable melt behavior

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

Choosing the correct FeSi grade ensures stable steel chemistry, improved alloying efficiency, and consistent metallurgical performance.

Composition can be customized according to steel grade or foundry requirements.

• 10–50mm – fine granules for ladle treatment and secondary metallurgy
• 10–100mm – standard size for EAF, BOF, and foundry charging
• 10–220mm – coarse granules for bulk furnace addition with slower silicon release

Consistent sizing minimizes fines, enhances silicon recovery, and stabilizes furnace operations.

• Primary and secondary deoxidation in carbon and alloy steels
• Silicon trimming for precise chemistry control
• Reduces inclusion formation and supports clean steel production

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

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

ZhenAn manufactures Ferrosilicon Silicon Iron 65/75 using submerged electric arc furnace technology, including:

• High-purity quartz as silicon source
• Low-impurity carbon reductants
• Controlled smelting, tapping, and cooling cycles

Post-production processes include crushing, grading, magnetic separation, and batch-level chemical verification, ensuring industrial-grade consistency and predictable silicon yield.

Each batch undergoes rigorous QC to ensure:

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

This guarantees efficient furnace operation, optimized alloy usage, and reliable metallurgical results.

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

Packaging protects against moisture and oxidation, maintaining FeSi 65/75 quality during storage and transport.

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

ZhenAn partners with industrial buyers who require stable metallurgical performance, high silicon recovery, and consistent industrial-grade quality.

FeSi 65 offers moderate silicon content suitable for standard alloy steel and cast iron, while FeSi 75 provides high silicon content, fast melting, and strong deoxidation for high-grade and specialty steels.

10–50mm granules are preferred for rapid dissolution and uniform reaction.

Yes. Both grades improve graphitization, melt stability, and casting quality.

Through submerged electric arc furnace smelting, batch chemical verification, and precise particle sizing.

Yes. ZhenAn can adjust silicon content, impurity limits, and granule sizes based on furnace type, steel grade, or metallurgical process.