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Steelmaking Deoxidizer Ferro Silicon 65
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Shape: Lump Powder Particles
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Chemical Composition:Si Fe Al Ca Mn Cr P S C
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Size:0~1mm 1~3mm 10mm~50mm 10~60mm 10~100mm .etc
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Package: Ton bag or customized according to customer requirements
Ferrosilicon 65, also known as ferrosilicon alloy (FeSi 65), is an ferro alloy with a silicon content of approximately 65%. It is commonly used for deoxidation, alloying and improving steel properties during the steel smelting process. Ferrosilicon is obtained from the high-temperature smelting reaction of iron and silicon. It is widely used in steel, aluminum, cast iron and other industries, especially playing an important role in the steelmaking process.

chemical composition
Grade |
Chemical Composition(mass fraction)% | |||||||
| Si | Al | Ca | Mn | Cr | P | S | C | |
|
≥ |
≤ | |||||||
| FeSi90Al1.5 | 87.0~95.0 | 1.5 | 1.5 | 0.4 | 0.2 | 0.04 | 0.02 | 0.2 |
| FeSi9oAl3.0 | 87.0~95.0 | 3 | 1.5 | 0.4 | 0.2 | 0.04 | 0.02 | 0.2 |
| FeSi75Al0.5-A | 74.0~80.0 | 0.5 | 1 | 0.4 | I0.3 | 0.035 | 0.02 | 0.1 |
| FeSi75Al0.5-B | 72.0~80.0 | 0.5 | 1 | 0.5 | 0.5 | 0.04 | 0.02 | 0.2 |
| FeSi75Al1.0-A | 74.0~80.0 | 1 | 1 | 0.4 | 0.3 | 0.035 | 0.02 | 0.1 |
| FeSi75Al1.0-B | 72.0~80.0 | 1 | 1 | 0.5 | 0.5 | 0.04 | 0.02 | 0.2 |
| FeSi75Al1.5-A | 74.0-80.0 | 1.5 | 1 | 0.4 | 0.3 | 0.035 | 0.02 | 0.1 |
| FeSi75Al1.5-B | 72.0~80.0 | 1.5 | 1 | 0.5 | 0.5 | 0.04 | 0.02 | 0.2 |
| FeSi75Al2.0-A | 74.0~80.0 | 2 | 1 | 0.4 | 0.3 | 0.035 | 0.02 | 0.1 |
| FeSi75Al2.0-B | 72.0~80.0 | 2 | 0.5 | 0.5 | 0.04 | 0.02 | 0.2 | |
| FeSi75-A | 74.0~80.0 | 0.4 | 0.3 | 0.035 | 0.02 | 0.1 | ||
| FeSi75-B | 72.0~80.0 | 0.5 | 0.5 | 0.04 | 0.02 | 0.2 | ||
| FeSi65 | 65.0~72.0 | 0.6 | 0.5 | 0.04 | 0.02 | |||
Main uses of ferro silicon 65
Deoxidizer in steelmaking:
The most important use of ferrosilicon 65 is as a deoxidizer in steel smelting. During the steelmaking process, molten iron usually contains too much oxygen, which will form oxides with carbon, sulfur, nitrogen and other elements in the steel, affecting the quality of the steel. In order to remove these oxygens, it is usually necessary to add a deoxidizer, and ferrosilicon 65 is one of the most commonly used deoxidizers.
Steel alloying:
Ferrosilicon 65 is also used in steel alloying, especially when it is necessary to increase the silicon content in the steel. As an important alloying element, silicon can significantly improve the high temperature resistance, oxidation resistance and electrical conductivity of steel. Therefore, ferrosilicon is often used as the silicon element in the production of alloy steels such as stainless steel, special steel and electrical steel. Add source.
Cast iron production:
In the production process of cast iron, FeSi 65 also plays an important role. Cast iron usually has a high silicon content, and ferrosilicon alloys are common materials that provide silicon. Ferrosilicon can improve the fluidity, castability and surface quality of cast iron, and enhance the wear resistance and corrosion resistance of cast iron.
Other metallurgical industry applications:
In addition to its application in the steel and cast iron industries, ferrosilicon 65 is also used in some special metallurgical and alloy industries. It can be added as an alloying element to other metals, especially in alloys that need to improve high temperature resistance, corrosion resistance and mechanical properties.
Reducing agent in electric furnace steelmaking:
In the process of electric furnace steelmaking, ferrosilicon 65 can also be used as a reducing agent, especially when processing ores or waste materials containing higher oxides, to help remove unnecessary oxygen elements and optimize the alloy. Element.

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