High carbon ferrochrome (containing 4-8% carbon), medium carbon ferrochrome (containing 0.5-4% carbon), low carbon ferrochrome (containing 0.15-0.50% carbon), micro carbon ferrochrome (containing 0.06% carbon), ultra fine carbon ferrochrome (containing less than 0.03% carbon), metallic chromium, silicon chromium alloy ferrochrome: an iron alloy composed of chromium and iron, which is an important alloy additive in steelmaking. The chromite used for smelting ferrochrome generally requires a content of Cr2O340-50%, with a chromium to iron ratio greater than 2.8. In recent years, a large amount of "charge grade ferrochrome" containing 50% chromium has been produced, using ores containing Cr2O3 and low chromium to iron ratios
