High-Quality Ferrosilicon FeSi 65/75 with 65%–75% Silicon Content for Steelmakin

Steelmakers and foundries face ongoing issues when using ferrosilicon in high-volume operations:

• Uncontrolled silicon addition leading to over-oxidation or inconsistent steel chemistry

• Fines and uneven particle size affecting melting rates and furnace efficiency

• Graphitization issues in cast iron production

• Increased alloy consumption and operating costs due to variability

High-Quality Ferrosilicon FeSi 65/75 from ZhenAn addresses these pain points with precisely controlled silicon content, flexible granule sizes, and consistent industrial-grade quality, supporting reliable steelmaking, alloying, and foundry operations.

Selecting the right FeSi 65 or FeSi 75 grade ensures metallurgical precision, cost savings, and process stability.

Composition can be adjusted based on steel grade, furnace type, or foundry requirements.

• 10–50mm – rapid dissolution for ladle and secondary metallurgy

• 10–100mm – standard size for EAF, BOF, and foundry charging

• 10–220mm – coarse granules for bulk furnace addition, slower silicon release

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

• Primary and secondary deoxidation in carbon and alloy steel

• Silicon adjustment for low-oxygen steel grades

• Supports clean steel and inclusion control

• Graphitization enhancement in gray and ductile iron

• Improved melt fluidity and casting quality

• Stable silicon input for repeatable foundry processes

• Base silicon for specialty alloys

• Reducing agent in metallurgical reactions

• Raw material for silicon-based industrial and chemical applications

ZhenAn produces FeSi 65/75 via submerged electric arc furnace smelting with:

• High-purity quartz

• Low-impurity carbon reductants

• Controlled smelting temperature and cooling cycles

Post-smelting processing includes crushing, grading, magnetic separation, and batch-level chemical verification, ensuring industrial reliability and consistent metallurgical behavior.

Every batch of FeSi 65/75 undergoes strict QC for:

• Stable silicon content

• Low phosphorus and sulfur levels

• Controlled aluminum and carbon content

• Uniform particle size distribution

This ensures furnace efficiency, alloy yield optimization, and consistent product quality.

• 1 MT jumbo bags

• 25 kg bags palletized

• Bulk shipment for long-term contracts

Packaging prevents moisture absorption and oxidation, maintaining FeSi 65/75 quality throughout storage and transit.

• 30+ years of ferroalloy production experience

• Expertise in steelmaking-grade and foundry-grade FeSi

• Flexible specifications and granule sizes

• Reliable long-term industrial supply

ZhenAn provides technical support and supply consistency, helping buyers avoid metallurgical variability and excessive alloy cost.

FeSi 65 has moderate silicon content and slower reaction, suitable for standard steel and foundry operations.
FeSi 75 has high silicon content, faster melting, and stronger deoxidation, ideal for alloy steel and high-purity applications.

10–50mm granules are typically preferred for ladle treatment due to rapid and uniform dissolution.

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

Through strict electric arc furnace smelting, batch chemical verification, and controlled particle sizing, ZhenAn guarantees stable silicon recovery.

Yes. ZhenAn can adjust silicon content, impurity limits, and granule sizes to meet specific steel grade or foundry process requirements.