Products Parameters
| Normal Grade | Composition |
| FeSi75 | Si:75%Min C:0.2%Max Al:2.0%Max P:0.03%Max S:0.03%Max |
| FeSi72 | Si:72%Min C:0.2%Max Al:2.0%Max P:0.03%Max S:0.03%Max |
| FeSi70 | Si:70%Min C:0.2%Max Al:2.0%Max P:0.03%Max S:0.03%Max |
| FeSi65 | Si:65%Min C:0.2%Max Al:2.0%Max P:0.04%Max S:0.03%Max |
| Low Al Grade 75%FeSi | Si:75% C:0.2% AL:0.2% P:0.035% S:0.02% |
Products Description
Ferro Silicon 65 is an important ferroalloy, mainly composed of iron (Fe) and silicon (Si), of which the silicon content is usually around 65%, and the rest is iron and a small amount of impurities. As a basic metallurgical material, it plays an irreplaceable role in the steel smelting and casting industry, has a wide range of applications, and has significant economic and technical value.
Ferro Silicon 65 is usually produced by electric furnace reduction method, with quartz sand (SiO₂) and coke (C) as the main raw materials, which are reduced to silicon under high temperature conditions and combined with iron to form an alloy. The production process has high requirements for raw material purity and furnace temperature control to ensure that the silicon content of the final product is stable at around 65%. The physical form of the alloy is mostly block or granular, which is convenient for transportation and use in the smelting process. Compared with other ferrosilicon alloys, Ferro Silicon 65 has a moderate silicon content, which makes it better balanced during deoxidation and alloying. Too high a silicon content may make the smelting process difficult to control, while too low a silicon content may affect its efficiency. Therefore, the 65% silicon content makes it an ideal choice for the steel industry.
Ferro Silicon 65 is mainly used as a deoxidizer in steelmaking. During the steelmaking process, oxygen dissolved in molten steel will reduce the quality of steel, while silicon has an active chemical property and can combine with oxygen to form silicon dioxide (SiO₂), thereby effectively removing oxygen from molten steel and improving the purity and mechanical properties of steel. In addition, silicon can improve the fluidity of steel and reduce casting defects. In addition to deoxidation, Ferro Silicon 65 is also used for alloying. Silicon can increase the hardness and strength of steel while enhancing its heat resistance and corrosion resistance. Therefore, this alloy is widely added in the production of special steels such as electrical steel, spring steel and stainless steel. In the foundry industry, Ferro Silicon 65 is often used for inoculation treatment to improve the organizational structure of cast iron and promote graphitization, thereby improving the mechanical properties and processing performance of castings.
With the continuous development of the global steel industry, the demand for Ferro Silicon 65 remains stable. Especially in emerging economies, infrastructure construction and the expansion of manufacturing have driven the growth of steel production, which in turn has driven the demand for ferrosilicon alloys.
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