Ferrosilicon chemical composition | Analysis 2025

Ferrosilicon chemical composition

Persian Ferrosilicon 📊

The 2025 chemical analysis of Persian Ferrosilice Co.’s ferrosilicon confirms a high-purity alloy with 73.7% silicon, 25.06% iron, and ultra-low impurities (<0.001% for most elements). Key controlled elements like aluminum (0.20=%), calcium (0.12%), titanium (0.12%), and phosphorus (0.04%) ensure optimal steelmaking and casting performance. Meeting ISO, EN, and ASTM standards, this premium-grade ferrosilicon is manufactured in Iran and exported globally to GCC, MENA, Europe, and Asia, delivering consistent quality and reliability for industrial applications.

Ferrosilicon is one of the most essential ferroalloys in modern metallurgy. It plays a critical role as a deoxidizer, an alloying agent, and a key enhancer of steel quality in foundries and steel plants worldwide.

As the steel industry demands increasingly pure materials for advanced applications, the exact chemical composition of ferrosilicon has become a defining factor for buyers.

Persian Ferrosilice Co., a leading Iranian producer and exporter of ferrosilicon, is at the forefront of delivering premium-grade alloy with a precise composition that ensures consistent performance in industrial processes.

Our latest 2025 product analysis highlights outstanding silicon content, strict control over iron levels, and ultralow impurities—parameters that make our product the preferred choice for high-quality steel manufacturers globally.

Ferrosilicon (FeSi) is composed mainly of Silicon (Si) and Iron (Fe), with trace amounts of other elements.

• 🏭 In steelmaking, it acts as a strong deoxidizer, removing oxygen to improve metal quality.
• 🔥  In casting, it promotes better fluidity and surface finish.
• ⚡ In electrical steel production, it helps achieve specific electrical resistivity properties.
• 🧲 Magnesium ferrosilicon is used in the production of ductile iron.

The performance of ferrosilicon depends heavily on its purity and controlled chemical balance. Even small variations in composition can impact metallurgical results.

Our 2025 in-house laboratory analysis for Persian Ferrosilice Co.’s standard ferrosilicon grade is as follows:

• High silicon purity (73.7%) ensures strong deoxidizing capability.
• Iron level at 25.06% balances alloy strength and reactivity.
• Ultra-low impurities (<0.001%) for most deleterious elements such as lead, cadmium, and arsenic.
• Controlled Al, Ca, Ti, P levels for optimal casting and steel refining.

The precise ratio of Si to Fe not only affects the metallurgical properties but also controls energy efficiency during production.

• 🏆 High Si content improves chemical reaction speed in steelmaking.
• 🔥 Low aluminum and calcium impurities prevent nozzle clogging in continuous casting.
• 🧪Minimal phosphorus (0.04%) ensures high-quality steel with improved ductility.

Our production process is designed for precision and repeatability:

1. Raw Material Selection – High-grade quartzite and coke are used.
2. Smelting in Electric Arc Furnaces – Ensuring controlled alloy formation.
3. Refining & Cooling – Achieving uniform structure.
4. Crushing & Sieving – Tailoring particle sizes for client needs.
5. Laboratory Analysis – Every batch is tested for exact composition.

In 2025, the ferroalloys market is shifting towards cleaner, low-impurity alloys due to stringent environmental regulations.

• Steel mills demand low-residual ferrosilicon to meet green steel initiatives.
• Prices remain stable despite raw material volatility due to global demand stability.
• Persian Ferrosilice Co. is expanding export volumes, leveraging its strategic Iranian port facilities for cost-effective logistics.

• Proven Quality: Over 10 years in the ferroalloy industry.
• Global Exports: Established trade routes to GCC, Europe, Asia, and Africa.
• Tailored Solutions: Custom particle size, packaging, and composition.
• Competitive Pricing: Advantageous due to location and local raw materials.
• Customer Commitment: Full after-sales technical support.

A: Mainly as a deoxidizer in steelmaking, an inoculant in casting, and a key material in magnesium production.

A: Typically between 72–75% for optimal steelmaking performance—exactly what Persian Ferrosilice Co. offers.

A: Yes, our product complies with EN and ASTM specifications.

A: Yes, we provide various lump and granule sizes to meet customer requirements.

A: GCC, MENA, Europe, and Asian markets.

The 2025 chemical analysis of Persian Ferrosilice Co.’s ferrosilicon confirms what global buyers have known for years-our alloy is rich in silicon, free from harmful impurities, and manufactured with precision.

As the global steel sector advances towards cleaner, more efficient production, our ferrosilicon continues to meet and exceed expectations.

🌍 Website: FERROSILICON.CO

📧 Email: info@ferrosilicon.co

📱 24/7 Contact: +98‑[9121684359]

📍 Location: Iran Tehran, Karim Khan, Nejatollahi North St., No. 269, Pardis Villa Building, 5th Floor, Unit 503

📦 Exports to: GCC, MENA, Europe, Asia