In steelmaking, ferromanganese is often used as a deoxidizer and alloy additive. It is the most used iron alloy. The manganese ore used for smelting ferromanganese generally requires that the ferromanganese contains 30-40% manganese, the manganese-iron ratio is greater than 7, and the *manganese ratio is less than 0.003. Before smelting, manganese carbonate ore must be roasted first, and fine ore must be sintered to agglomerate.

Ores with high iron content can generally only be used in combination, or manganese-rich slag with low iron and low content can be obtained through selective reduction. Coke is used as a reducing agent during smelting, and some manufacturers also use lean coal and anthracite. The auxiliary raw material is mainly lime, and silica is generally added when smelting manganese-silicon alloy.

High-carbon ferrochrome manufacturers are divided into carbon ferrochrome powder, medium-carbon ferrochrome powder, low-carbon ferrochrome powder, and micro-carbon ferrochrome powder according to different carbon content. Also commonly used are silicon chromium alloy, chromium nitride iron powder and so on. Ferrochromium powder is mainly used as an alloy additive for steelmaking. In the past, it was added in the later stage of steelmaking. The smelting of low-carbon steels such as stainless steel requires the use of low- and micro-carbon ferrochrome powder, so the production of refined ferrochrome powder has been developed on a large scale.

Due to the improvement of the steelmaking process, when using the out-of-furnace refining method to produce stainless steel and other steel grades, the furnace is filled with carbon ferrochrome powder, so it is only necessary to add low and micro-carbon ferrochrome powder to adjust the composition in the later stage. The powder production point is the refining of carbon ferrochrome powder.