Ferrosilicon Plant

 

Ferrosilicon is an alloy of iron and silicon, typically containing 70%-90% silicon. The product appears as grayish-black lumps with a metallic luster on cross-section and a melting point of approximately 1300-1400°C. As a critical auxiliary material in the metallurgical industry, it combines strong reducing properties with alloying effects. On one hand, ferro-silicon removes impurities like oxygen and sulfur from molten steel. On the other, it enhances steel's strength, hardness, and corrosion resistance.

As a ferrosilicon plant with years of production expertise, our products meet stringent requirements across diverse applications through precise silicon content control. We ensure uniform composition and low impurity levels, providing stable raw material support for downstream processes. For purchasing inquiries or detailed information, click the button below to contact us.

 

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Model	Ferro silicon 75
Brand	New Sail
Chemical Composition	Si Fe Al Ca C P S
Size	10-50mm, 10-70mm, 10-100mm or as client's requirement
Packaging	1MT/bag or as per client's requirement
Supply Capacity	2000MT/month
Minimum Order Quantity	25MT

 

 

1. Accurate Silicon Content

The core value of ferrosilicon lies in its silicon content, which must strictly match the required specifications.
For example, Grade 75 ferrosilicon requires a silicon content of 72%–80%.
High-quality products should maintain a deviation of no more than ±0.5%, which can be verified through third-party testing reports.

 

2. Appearance and Texture

Premium ferrosilicon appears as gray-black metallic blocks with smooth fracture surfaces and metallic luster, without noticeable honeycomb-like pores.
Excessive pores indicate insufficient deoxidation during smelting.
If the surface shows white powder, it may result from moisture absorption and oxidation due to improper storage, and such products should be selected with caution.

 

3. Uniform Particle Size

Choose the appropriate particle size based on application:

• 50–100 mm blocks are commonly used in steelmaking.
• 10–50 mm crushed granules are suitable for foundry applications.

High-quality ferrosilicon features uniform granularity with minimal fine powder.
Excessive powder not only causes material loss but may also contain impurities.
On-site sampling and sieving can be performed to verify whether the particle size distribution meets the agreed standards.

 

4. Raw Materials and Production Control

Superior ferrosilicon is produced using high-purity raw materials:

• Quartz (silica) with SiO₂ ≥ 97%
• Coke with fixed carbon ≥ 85%

Buyers may inspect whether the manufacturer has raw material pretreatment processes and whether production is certified under quality systems such as ISO 9001.

 

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