Ferrosilicon 75 price per ton China
| China's export price of ferrosilicon on April 22, 2026 | ||||
| Unit: US dollars/ton | ||||
| product | Brand | Quotation | rise and fall | Remark |
| Ferrosilicon | 72 | 1140-1160 | -- | FOB Tianjin Port |
| Ferrosilicon | 75 | 1180-1210 | -- | FOB Tianjin Port |
Ferrosilicon in Steelmaking: Boost Purity, Strength, and Consistency
Ferrosilicon (FeSi) has a direct and critical impact on steel quality. It acts as a powerful deoxidizer and alloying element, helping remove oxygen, refine microstructure, and improve mechanical properties such as strength, ductility, and corrosion resistance. Correct selection and dosing of FeSi can significantly enhance final steel performance and reduce defects.
Typical Specifications of Ferrosilicon Used in Steelmaking
| Parameter | FeSi 75 | FeSi 72 | FeSi 65 |
|---|---|---|---|
| Si Content | 74–76% | 71–73% | 63–67% |
| C (Max) | ≤0.10% | ≤0.10% | ≤0.15% |
| S (Max) | ≤0.02% | ≤0.02% | ≤0.03% |
| P (Max) | ≤0.04% | ≤0.04% | ≤0.04% |
| Al | ≤2.0% | ≤2.0% | ≤2.5% |
| Size | 10–50 mm / 50–100 mm | Same | Same |
| Application | High-grade steel | General steel | Cost-sensitive steel |
How Ferrosilicon Improves Steel Quality
Ferrosilicon plays a fundamental role during steel refining by reacting with dissolved oxygen in molten steel. This reaction forms stable oxides that are removed into slag, resulting in cleaner steel with fewer inclusions. Reduced oxygen content directly improves mechanical integrity and reduces defects such as blowholes and brittleness.
In addition to deoxidation, silicon acts as an alloying element that enhances strength, elasticity, and oxidation resistance. This is particularly important in structural steels, spring steels, and electrical steels where performance consistency is essential.
Ferrosilicon also contributes to better grain refinement and microstructure control. A well-controlled silicon level helps achieve uniform solidification, reducing segregation and improving overall steel homogeneity.
Impact on Steel Properties and Production Efficiency
The use of ferrosilicon improves both product quality and process efficiency.
In continuous casting and large-scale steelmaking, FeSi helps stabilize molten steel composition, ensuring consistent results across batches. It also enhances fluidity, which improves mold filling and reduces casting defects.
However, excessive silicon addition can lead to increased hardness and reduced weldability, so precise control is essential to achieve optimal performance.
Ferrosilicon Grade Comparison
FeSi 75 vs FeSi 72
FeSi 75 provides stronger deoxidation due to higher silicon content, making it ideal for high-quality and low-oxygen steel production.
FeSi 72 offers a balance between cost and performance and is widely used in general structural steel manufacturing.
FeSi 75 vs FeSi 65
FeSi 75 delivers higher purity and better refining efficiency, improving final steel cleanliness and strength.
FeSi 65 is more economical but contains lower silicon, making it suitable for less demanding applications where cost control is a priority.
FeSi vs Other Deoxidizers (e.g., Aluminum)
Ferrosilicon provides controlled and gradual deoxidation, reducing the risk of excessive inclusions.
Aluminum is a stronger deoxidizer but can create fine inclusions if not controlled properly. FeSi is often used in combination with aluminum for optimized results.
Conclusion: Does Ferrosilicon Affect Steel Quality?
Yes-ferrosilicon is one of the most important materials in steelmaking.
improves steel cleanliness by removing oxygen
enhances strength and mechanical properties
stabilizes production and casting performance
reduces defects and improves consistency
👉 Proper selection of FeSi grade and size is essential to achieving high-quality steel and efficient production.
FAQ for Buyers and Steel Producers
Does ferrosilicon improve steel quality?
Yes, it removes oxygen and enhances mechanical properties.
What is the main function of FeSi?
It acts as a deoxidizer and alloying agent.
Which grade is best for high-quality steel?
FeSi 75 is typically preferred.
Can too much silicon affect steel?
Yes, excessive silicon can reduce weldability and increase brittleness.
Is FeSi better than aluminum?
They serve different roles and are often used together.
What size FeSi is used in steelmaking?
Common sizes are 10–50 mm and 50–100 mm.
Reliable Ferrosilicon Supply for Steelmaking
We provide high-quality ferrosilicon for global steel producers:
FeSi 65 / 72 / 75 available
stable chemical composition
multiple particle sizes for different processes
consistent supply and quality control
📩 Email: market@zanewmetal.com
📱 WhatsApp: +86 15518824805
Contact us today for a fast quotation and technical support tailored to your steel production needs.
Why Choose ZhenAn Ferrosilicon?
European buyers sourcing ferrosilicon (FeSi) typically focus on performance efficiency in steelmaking, composition reliability, compliance readiness, and long-term supply stability. ZhenAn is structured to deliver on these priorities.
1. Reliable Silicon Content Across Grades
ZhenAn supplies multiple FeSi grades (such as 72% and 75%) with tightly controlled composition, ensuring predictable deoxidation efficiency and alloying performance.
2. Efficient Steelmaking Performance
Ferrosilicon provides strong deoxidation capability, improves steel purity, and supports better mechanical properties in finished steel products.
3. Consistent Particle Size & Handling
Uniform sizing improves melting efficiency and dosing accuracy, which is critical for automated steel production lines in Europe.
4. Compliance & Documentation Support
COA, SDS, and export documentation are provided to meet European import standards and reduce clearance risks.
5. Stable Supply with Cost Efficiency
ZhenAn ensures reliable production output and delivery schedules, while factory-direct supply helps optimize procurement costs.
Conclusion
ZhenAn ferrosilicon offers European buyers a dependable combination of process efficiency, consistent quality, and secure supply at competitive pricing.
