What Are The Classifications Of Ferrochrome

Ferrochrome is divided into high carbon ferrochrome according to different carbon content, including charging grade ferrochrome (C≦10%), medium carbon ferrochrome (C≦4.0%), low carbon ferrochrome (C≦0.5%), micro carbon Ferrochrome (C≦0.15%), etc. Commonly used are silicon-chromium alloy, ferrochromium nitride and so on. Ferrochromium is mainly used as an alloying additive in steelmaking, and in the past it was added at the later stage of refining in steelmaking. The smelting of low carbon steel such as stainless steel requires the use of low and micro-carbon ferrochromium, so the production of refined ferrochromium was once developed on a large scale. Due to the improvement of the steelmaking process, when using the AOD method (see out-of-furnace refining) to produce stainless steel and other steel grades, carbon ferrochrome (mainly charging grade ferrochrome) is used to charge the furnace, so it is only necessary to add low and micro chrome in the later stage. Carbon ferrochromium adjusts the composition, so the focus of ferrochromium production is to refine carbon ferrochromium.