FeSi Description
Ferroalloy refers to an alloy composed of one or more metal or non-metal elements and iron. Ferrosilicon is an alloy of silicon and iron. As we all know, 75% Ferro-Silicon is an important raw material for steelmaking and casting. Fe Silicon 75 used in steelmaking can improve the physical, chemical, and mechanical properties of steel and castings, thereby enhancing their quality. As an important raw material for metallurgical industries such as steel, ferrosilicon products play a crucial role in modern economic development. The steelmaking, casting, and ferroalloy industries are the largest markets for ferrosilicon, consuming over 90% of ferrosilicon annually.
The production process of fe silicon involves smelting with coke, steel scrap, and quartz (or silica) as raw materials in an electric furnace. In traditional Fesi Ferrosilicon refining, silicon is reduced from silica containing SiO2. Metallurgical coke is often used as the reducing agent, while steel scrap serves as a modifier for 75% Fe Si Foundry Grade. In fact, the reaction mechanism of Fe Silicon is quite complex.
Although researchers propose different reduction mechanisms, there are a few indisputable points, including the formation and decomposition of intermediate products such as silicon carbide and silicon monoxide during the smelting process. Silicon monoxide plays a significant role in the entire reduction process of silica.Silicon Ferro is often used as a deoxidizer in steelmaking, where it is utilized for precipitation and diffusion deoxidation. It also serves as an alloying agent in steelmaking.
Adding a certain amount of silicon to steel can significantly improve its strength, hardness, and elasticity, increase its magnetic permeability, and reduce magnetic hysteresis loss in transformer steel. At the same time, SiO2 generates a large amount of heat, which is beneficial for increasing the temperature of molten steel during deoxidation. Ferrosilicon can also be used as an alloying element additive, widely applied in low-alloy structural steel, combined steel, spring steel, bearing steel, heat-resistant steel, electrical steel, etc. Additionally, ferrosilicon is commonly used as a reducing agent in ferroalloy production and the chemical industry.
Moreover, ferrosilicon can be used as an inoculant to improve the properties of ductile iron. It is also employed as a suspended phase in the mineral processing industry. Ferrosilicon powder can be used in the production of welding fluxes.
ferro silicon chemical composition
| Ferro silicon code | Chemical composition(%) | |||||
|---|---|---|---|---|---|---|
| Si | Mn | Cr | C | P | S | |
| FeSi75A | 74.0-80.0 | ≤0.4 | ≤0.3 | ≤0.1 | ≤0.035 | ≤0.02 |
| FeSi75B | 72.0-80.0 | ≤0.4 | ≤0.3 | ≤0.1 | ≤0.04 | ≤0.02 |
| FeSi75C | 70.0-80.0 | ≤0.5 | ≤0.5 | ≤0.2 | ≤0.04 | ≤0.02 |
| FeSi65 | 65.0-72.0 | ≤0.6 | ≤0.5 | ≤0.2 | ≤0.04 | ≤0.02 |
ferro silicon factory FAQ
Q：Do you accept OEM?
A：Yes, we accept OEM. This is our specialty.
Q：What's the MOQ of trial order?
A：No limit,We can offer the best suggestions and solutions according to your condition.
Q：What are the payment terms?
A：Usually T/T , or L/C.
ferrosilicon manufacturer Contact Us
ZHENAN INTERNATIOANL CO., LTD
Fax: +86-372-5055135
Email: kevin@zaferroalloy.com
Website: www.zaferroalloy.cn
Address: 1-2510,Huafu Office Building,Anyang,Henan,China
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