FeSi75 Metallurgical Alloy For Efficient Steel Deoxidation
Functional Mechanisms and Industrial Relevance of Ferro Silicon 75 Alloy
FeSi75 Alloy is produced through the high-temperature reduction of quartzite and coke in electric arc furnaces, using recycled steel chips as a supporting raw material.
During smelting, silicon binds with oxygen to form stable SiO₂, effectively removing residual gases and inclusions.
This results in cleaner steel with enhanced toughness, fatigue resistance, and mechanical consistency.
In steel mills, FeSi75 functions not only as a deoxidizer but also as a heat-generating additive, which maintains molten metal fluidity and improves recovery rates during ingot casting.
In foundries, it acts as an inoculant and nodulizer, ensuring uniform graphite structure in ductile and gray cast iron, enhancing machinability and elongation properties.
Moreover, the alloy's high silicon ratio makes it a preferred reducing agent in the production of low-carbon ferroalloys and magnesium metal.
Chemical Parameters and Functional Data Sheet of FeSi75 for Metallurgical Applications
| Alloy Attribute | Typical Specification Range | Functional Purpose & Role |
|---|---|---|
| Silicon (Si) Concentration | 74 to 76 percent | Core element for deoxidation and alloying processes |
| Carbon (C) Upper Threshold | No more than 0.25 percent | Ensures the steel matrix remains free of impurities |
| Phosphorus (P) Maximum Allowance | Up to 0.04 percent | Manages and limits the material's brittle tendency |
| Sulfur (S) Restriction Level | A maximum of 0.02 percent | Boosts the alloy's ability to deform without breaking |
| Iron (Fe) Content | Remaining composition | Acts as a base carrier to maintain structural uniformity |
| Material Density | 6.5 to 7.0 grams per cubic centimeter | Signifies a dense and high-integrity metallurgical structure |
| Particle Size Options | 0.2–0.7 / 0.7–1.0 / 1.0–3.0 / 3.0–8.0 millimeters | Provides multiple size selections that can be tailored to needs |
Global Client Visits and Partnership Development on Ferrosilicon 75 Projects


Business Delegation Reviewing Quality Documentation and Production Samples of FeSi75 Alloy During Factory Visit
Competitive Strengths and Industrial Benefits of FeSi75 Material
Efficient Oxygen Removal: Provides fast, stable deoxidation results in molten steel.
Thermal Consistency: Reduces heat loss during smelting, improving metal yield.
Multi-Functional Utility: Serves as alloy additive, inoculant, and heating agent.
Reliable Quality Control: Every batch inspected under ISO and SGS certification.
Global Export Assurance: Professional logistics ensure safe and timely delivery.
FAQ
Q1: What makes FeSi75 preferred for steelmaking?
A1: Its high silicon ratio ensures cleaner steel, efficient oxygen removal, and improved casting performance.
Q2: What are ZhenAn's typical packaging options?
A2: Products are sealed in 1-ton jumbo bags or 25–250 kg steel drums for export protection.
Q3: Can ZhenAn provide custom specifications?
A3: Yes, both particle size and silicon content can be tailored according to the client's production requirements.
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