High Silicon Ferrosilicon
Product Features
Extremely high silicon content
This is its most fundamental characteristic, typically ≥87% silicon content, reaching up to 95% or higher.
01
Extremely low carbon content
Due to the extremely high silicon content, carbon has very low solubility in it, resulting in an extremely low carbon content in high-silicon ferrosilicon. This makes it indispensable in applications requiring ultra-low carbon content.
02
High brittleness
The alloy's brittleness increases with rising silicon content, making high-silicon ferrosilicon extremely brittle and easier to break into smaller pieces for use.
03
Higher melting point
Silicon's melting point exceeds that of iron, resulting in a higher melting point for high-silicon ferrosilicon than standard ferrosilicon, typically above 1300°C.
04
Differences from Ordinary Ferrosilicon
We compare it with the most common FeSi75:
| Characteristics | High-Silicon Ferrosilicon (e.g., FeSi90) | Standard Ferrosilicon (e.g., FeSi75) |
| Silicon Content | High (≥87%) | Medium (72%-80%) |
| Carbon Content | Ultra-Low (<0.05%) | Low (<0.1%) |
| Core Applications | Metal reducing agent (e.g., magnesium smelting), chemical silicon source | Steelmaking deoxidizer, alloying element additive |
| Market Positioning | Targeted at specific chemical and non-ferrous metallurgy industries | Targeted at general and special steel industries, with massive consumption |
| Price | Typically higher (due to high silicon content and high production energy consumption) | Relatively low, classified as a commodity |
Primary Uses and Production Methods
The applications of high-silicon ferrosilicon are primarily concentrated in two fields: metallurgical reducing agents and chemical industry raw materials. This differs significantly from ordinary ferrosilicon, which is mainly used as a deoxidizer and alloying agent in steelmaking.
1. Metallurgical Field: As a Reducing Agent
Due to its strong reducing capacity, high-silicon ferrosilicon is widely used in the smelting of certain low-carbon metal alloys.
2. Chemical Industry: As a Silicon Source
High-silicon ferrosilicon serves as a vital base material for producing various silicon-based chemicals.
3. Special Steel and Foundry Industry
When processing these steel grades, using high-silicon ferrosilicon can more efficiently increase the silicon content in molten steel while introducing fewer impurities such as carbon.
Production Method:
Similar to ordinary ferrosilicon, it is produced by reducing silica and iron sources with carbon in an electric arc furnace. However, manufacturing higher-grade ferrosilicon demands stricter control over raw material purity and furnace conditions, while also requiring greater energy consumption.
Why Choose Us?
Anyang DeDao Materials Co., Ltd. was established on May 11, 2020, and is located in Anyang, China-renowned as the hometown of alloy steel. Our primary business scope encompasses: alloy steel, metallurgical materials, foundry materials, ferrous metals, rare metals, and import/export operations. We are committed to providing customers with the highest quality silicon manganese products and services. For further product information or purchasing inquiries, please feel free to contact us anytime!
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