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Ferrosilicon, an indispensable basic ferroalloy in the steel industry, has been in use for over a century. Building on traditional ferrosilicon production processes, Jinshuo ferrosilicon pellets have addressed issues such as the tendency of traditional lump ferrosilicon to crumble, compositional inconsistencies, and difficulties in handling through technological innovation and process upgrades, making them the ideal choice for deoxidation and alloying in modern steelmaking.
Ferrosilicon balls are primarily manufactured by high-pressure compaction of ferrosilicon powder and a small amount of binder. Product grades include FeSi45, FeSi60, and FeSi75, among which FeSi75 is the most widely used grade. Their core chemical composition strictly complies with the GB/T 2272-2009 standard: FeSi75 has a silicon content of 72%–80%, with the remainder being iron; carbon content ≤0.20%, sulfur content ≤0.02%, phosphorus content ≤0.04%, manganese content ≤0.50%, and aluminum content ≤0.50%. For customers with specific requirements regarding aluminum content, Jinshuo can also provide low-aluminum ferrosilicon balls, with aluminum content controlled below 0.1%, to meet the production needs of high-end steel grades.
In terms of physical properties, Jinshuo ferrosilicon balls have a density of 6.3–6.8 g/cm³, a hardness of 60–80 HBS, and a melting point of approximately 1200–1300°C. The product is available in a full range of particle sizes, with standard sizes ranging from 10–50 mm; finer grades such as 0.2–3 mm and 3–8 mm can also be provided upon customer request. The spherical structure provides excellent flowability and bulk density, allowing the product to distribute evenly in molten steel and ensuring a more thorough reaction. The production process utilizes fully automated pelletizing equipment and a drying process, resulting in a product breakage rate of ≤5%. The product is resistant to pulverization during transportation and storage, effectively reducing raw material loss.
High-efficiency deoxidizers, alloying additives, reducing agents, and fluxing agents
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