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Ferro silicon is an iron alloy composed of iron and silicon. Ferro silicon is an iron silicon alloy made by smelting coke, steel chips, quartz (or silica) in an electric furnace. "Due to the ease with which silicon and oxygen can be synthesized into silicon dioxide, Ferro silicon is often used as a deoxidizer in steelmaking. At the same time, due to the large amount of heat generated during the formation of SiO2, it is also beneficial to increase the temperature of molten steel while deoxidizing.". At the same time, Ferro silicon can also be used as an alloying element additive, widely used in low alloy structural steel, spring steel, bearing steel, heat resistant steel, and electrical silicon steel. Ferro silicon is commonly used as a reducing agent in ferroalloy production and the chemical industry.
It is used as a deoxidizer and alloying agent in the steel making industry. In order to obtain qualified steel with chemical composition and ensure the quality of steel, deoxidation must be carried out at the end of steelmaking. The chemical affinity between silicon and oxygen is high, so Ferro silicon is a strong deoxidizer for steelmaking, used for precipitation and diffusion deoxidization. Adding a certain amount of silicon to steel can significantly improve the strength, hardness, and elasticity of steel. Therefore, Ferro silicon is also used as an alloying agent when smelting structural steel (containing 0.40-1.75% silicon), tool steel (containing 30-1.8% SiO), spring steel (containing 40-2.8% SiO), and transformer silicon steel (containing 2.81-4.8% silicon). Improving the morphology of inclusions and reducing the content of gaseous elements in molten steel is an effective new technology for improving steel quality, reducing costs, and saving iron. It is particularly suitable for the deoxidation requirements of continuous casting molten steel. Practice has proven that Ferro silicon not only meets the deoxidation requirements of steelmaking, but also has desulfurization performance and advantages such as significant specific gravity and strong penetration.
Grade | Si | Al | C | S | P |
FeSi72 | 72%min | 2.0%max | 0.2%max | 0.02%max | 0.04%max |
FeSi75 | 75%min | 2.0%max | 0.2%max | 0.02%max | 0.04%max |
FeSi75 Low Al | 75%min | 1.0%max 0.5%max 0.1%max | 0.1%max | 0.02%max | 0.04%max |
Size:0-3mm/3-10mm/10-50mm/50-100mm | |||||
Packing: 1MT big bag |
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