Low-Aluminum Ferrosilicon Alloy (FeSi75-B) Overview 🔍

🌟 Key Product Features 🌟

Ultra-Low Aluminum Content 🧪: ≤ 0.5% (significantly lower than standard grades)

High Purity ✨: Silicon content ≥ 74.0%

Minimal Impurities ⚖️:

Calcium (Ca) ≤ 0.5%

Carbon (C) ≤ 0.05%

Phosphorus (P) ≤ 0.02%

Sulfur (S) ≤ 0.01%

Customizable Granularity 📏: Available in 10-50mm, 20-80mm, or tailored specifications

⚙️ Special Performance Advantages ⚙️

Enhanced Deoxidation Efficiency 🔥

Reduces oxygen content in steel more effectively, minimizing oxide inclusions

Prevents formation of alumina-based inclusions, improving steel cleanliness

Improved Thermal Stability 🌡️

Exhibits lower thermal expansion coefficient

Ideal for high-temperature applications (e.g., refractory materials)

Superior Alloying Performance ⚛️

Prevents unwanted aluminum reactions in specialty alloys

Ensures precise control of alloy composition in critical applications

Corrosion Resistance 🛡️

Reduced aluminum content minimizes susceptibility to intergranular corrosion

Extends service life in aggressive environments

Main Function

Metallurgical Industry

Steelmaking deoxidizer: Silicon iron powder reacts with oxygen in molten steel to produce silicon dioxide (SiO ₂), effectively removing dissolved oxygen in steel and improving steel quality.

Alloy additive: added as a silicon source to steel or cast iron to improve the hardness, strength, wear resistance, and corrosion resistance of the material.

foundry industry

Fertility agent: In cast iron production, silicon iron powder can promote graphite precipitation, improve the microstructure of cast iron, enhance toughness and fatigue resistance.

Mineral furnace reducing agent

When used in the production of metals such as magnesium, chromium, manganese, etc., it participates in chemical reactions as a reducing agent (such as the Pidgeon process for refining magnesium).

Welding Material

As a component of welding rods or fluxes, it improves the fluidity and crack resistance of the welded metal.

Chemical and anti-corrosion

Anti corrosion coating: Silicon iron powder can be used to prepare high-temperature and corrosion-resistant coatings (such as zinc silicate coatings).

Hydrogen generator: Reacts with alkaline solution to generate hydrogen gas, used for emergency energy or laboratory purposes.

Other purposes

Suspending agent: adjust fluid density in heavy medium beneficiation.

Military and Fireworks: Some pyrotechnics or aluminum thermal reactions are used as heating materials.

Characteristics of Silicon Iron Powder
High chemical activity: easily reacts with elements such as oxygen and sulfur.

Moderate density: about 4.5-6.5 g/cm ³, easy to disperse in the melt.

Conductivity and magnetism: Ferrosilicon powder with high iron content has magnetism and can be used for special separation processes.

precautions
Moisture proof: Ferrosilicon powder is prone to moisture absorption and needs to be stored in a sealed manner to avoid contact with water and the production of hydrogen gas (flammable).

Anti oxidation: Long term exposure to air may cause surface oxidation, affecting the effectiveness of use.

75 Ferro Silicon Alloy

Chemical Composition Analysis Report 📊

Element	Content (%)
Silicon (Si)	74.5-76.5
Aluminum (Al)	≤ 0.5
Calcium (Ca)	≤ 0.5
Carbon (C)	≤ 0.05
Phosphorus (P)	≤ 0.02
Sulfur (S)	≤ 0.01
Manganese (Mn)	≤ 0.3
Titanium (Ti)	≤ 0.2
Iron (Fe)	Balance