Ferroalloys — are alloys of ferrum and other elements (Cr, Si, Mn, Ti, etc.) mainly used for steel deoxidation and alloying (e.g. by ferrochromium, ferrosilicium). Some alloys containing ferrum as additions only (silicocalcium, silicomanganese, etc.) and some metals and nonmetals (Mn, Cr, Si) with minimum admixture content are also conditionally attributed to ferroalloys. They are produced from ores or concentrates by means of electric furnaces or smelting shafts (furnaces).
As a rule, the price of metal in the form of ferroalloy is lower than the price of pure metal. Particularly, that is because ore usually contains, in one form or another, ferrum coming into alloy together with a main component during processing, and production process of ferroalloys is one of the easiest and cheapest ways of raw material processing. In the meantime, to receive a pure alloy one has to implement additional stages to the manufacturing process complicating the process and increasing the costs. Furthermore, receiving of ferrous metal can be excluded completely or can be one of intermediate stages where ferroalloys are processed for production of pure metal.
During reduction smelting ferrum dissolving a main element reduces its activity and lowers melting temperature of an alloy.
Usage of a ferroalloy as an alloying element increases its adoption by the melt and decreases loss during alloying and deoxidation of steel and alloys.
See also other materials of the group " For Basic-Oxygen Furnance production "