75 ferrosilicon reducing agent

The main grade system of ferrosilicon is standardized to meet the demands of different industrial applications. Ferrosilicon products are standardized into a series of grades based on their chemical composition (mainly silicon content and the upper limits of impurities such as aluminum, calcium, carbon, phosphorus, sulfur, manganese, chromium, etc.). The ISO 5445 standard and the Chinese national standard GB/T 2272 are widely adopted internationally. Common core grades include: FeSi75 (or 75% ferrosilicon) : ** Silicon content 72.0-80.0%, it is the most widely used high-grade ferrosilicon, mainly used for deoxidation/alloying in steelmaking, inoculation of high-quality cast iron, and metal thermal reduction methods (such as magnesium production). Its aluminium content is usually required to be relatively low (such as Al 1.5% max). FeSi72 (or 72% ferrosilicon) : ** Silicon content 70.0-75.0%, it is another mainstream grade. Its application is similar to that of FeSi75, but the cost may…