Ferroalloy to different alloys of iron with a high proportion of one or more other elements It is referred to as manganese, aluminum and silicon.

The purpose of adding ferroalloys to steel, cast iron and other iron-based alloys is to control the number, shape, composition, morphology and grain size distribution. Adding ferroalloy to the melt is done in the last stage of secondary metallurgy, i.e. secondary refining and before solidification of the melt, so the cleanliness and purity of the melt largely depends on the purity of the ferroalloy used. The production of ferroalloys is done by two methods: blast furnace and arc furnace (direct regeneration), which has been increasing rapidly since the end of the 20th century. Usually, ferroalloys are produced by carbothermic reactions involving the reduction of oxides with coke in the presence of iron. Some ferroalloys are produced by adding elements to molten iron.

Fruititanium

Titanium is used in steelmaking for deoxidation, grain size control and carbon and nitrogen control and stabilization.

Frochrome

Most of the ferrochrome produced in the world is used to make stainless steel.

Ferromanganese

With the aim of forming MnS2 inclusions inside the grains instead of forming FeS2 inclusions along the grain boundaries and preventing hot tearing of steel during hot rolling.

Ferromolybdenum

causes the simultaneous increase of toughness and strength in simple carbon steels with the mechanism of fine-grained steel.

Low Tungsten

Adding it to high speed tool steels (HSS)

Ferrovanadium

Increases the strength and toughness of steels with the mechanism of grain refinement (fine graining), also plays a role in achieving higher hardness after the quenching and tempering process.

Frosilicon

Silicon is used as a strong deoxidizer in most steels, it is also the main element in spring steels due to increased yield strength.