Ferrosilicon FeSi Alloy with 75% Silicon for Steelmaking Deoxidizer in 10–220mm Particle Size
Steel mills, foundries, and electronic-material producers face a critical challenge: different metallurgical processes demand specific silicon reactivity and recovery levels. Using a single ferrosilicon grade often results in over-deoxidation, unstable slag chemistry, or inefficient silicon utilization.
Ferrosilicon 75/65/55 from ZhenAn provides a comprehensive multi-grade industrial solution, enabling producers to select optimal silicon levels for steelmaking, cast iron, and electronic material applications while maintaining quality and process stability.
Ferrosilicon 75/65/55 represents a range of silicon iron alloys with precisely controlled silicon contents of 55%, 65%, and 75%, manufactured through electric arc furnace smelting. These grades serve critical roles across metallurgical and advanced material industries where silicon precision is essential.
| Grade | Silicon (Si) | Typical Use |
|---|---|---|
| FeSi 55 | ~55% | Controlled deoxidation, EAF steel |
| FeSi 65 | ~65% | Alloy steel, cast iron |
| FeSi 75 | ~75% | High-purity deoxidation, electronics |
| Item | Specification |
|---|---|
| Iron (Fe) | Balance |
| Particle Size | 10–50mm / 10–100mm / 10–220mm |
| Sulfur (S) | Low |
| Phosphorus (P) | Low |
| Grade | Industrial / Premium |
In steel production, silicon serves dual functions as both a deoxidizer and alloying element. Selecting the appropriate FeSi grade prevents inclusions, inconsistent strength, and excessive slag formation.
- FeSi 55 – Mild deoxidation, ideal for EAF operations
- FeSi 65 – Balanced silicon recovery for alloy steels
- FeSi 75 – Strong deoxidation for high-quality and special steels
This graded approach enhances steel cleanliness and chemical stability throughout production.
In cast iron manufacturing, silicon significantly influences graphite morphology and molten metal behavior. Ferrosilicon 65 and 75 are extensively utilized to:
- Improve molten iron fluidity
- Refine graphite structure
- Reduce shrinkage and porosity
- Enhance surface finish and machinability
Multiple size options ensure compatibility with various furnace scales and operational requirements.
For electronics and advanced material production, FeSi 75 delivers a reliable silicon source with controlled impurity levels, supporting:
- Silicon-based alloy preparation
- Semiconductor-related material processing
- Specialty metallurgical reactions
Low sulfur and phosphorus content is essential for maintaining product purity in sensitive applications.
ZhenAn supplies Ferrosilicon 75/65/55 across a comprehensive particle size spectrum to meet diverse industrial requirements:
- 10–50mm – Rapid melting with precise dosing control
- 10–100mm – Balanced dissolution for standard furnace operations
- 10–220mm – Gradual silicon release for large-scale industrial processes
This sizing flexibility minimizes alloy loss and optimizes operational efficiency.
- Multiple Silicon Grades in One Supply System
- Low Impurity Control (S & P) for clean steel and electronics applications
- Electric Arc Furnace Smelting ensures uniform composition
- Strict Crushing & Screening Standards
- 30+ Years of Ferroalloy Manufacturing Experience
ZhenAn supports global steel mills, foundries, and material producers with consistent FeSi quality and reliable supply.
All Ferrosilicon 75/65/55 grades are manufactured using selected quartz and iron materials processed in electric arc furnaces. Smelting parameters, cooling cycles, and sizing operations are rigorously controlled to ensure repeatable chemical composition and physical properties across production batches.
- Improved silicon utilization efficiency
- Reduced alloy over-consumption
- Enhanced steel and casting quality
- Better process adaptability
- Lower metallurgical risk across product lines
Ferrosilicon 75/65/55 from ZhenAn delivers graded silicon control, flexible sizing options, and industrial-grade reliability for steelmaking, cast iron production, and electronics-related applications. By matching silicon content to specific process requirements, manufacturers achieve cleaner metallurgy, stable performance, and long-term cost efficiency.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.