Ferro manganese is an alloy of iron and manganese containing usually about 80% manganese. Ferro manganese is used mainly to counteract the bad effects of sulphur. It also acts as a deoxidizer and combines with sulphur, thereby improving the hot-working properties of the product. It imparts metallurgical properties such as increased strength, hardness toughness and hardenability. Ferromanganese (Fe-Mn) is an important additive used as a deoxidizer in the production of steel. It is a master alloy of iron (Fe) and manganese (Mn) with a minimum Mn content of 65 %, and maximum Mn content of 95 %. It is produced by heating a mixture of the oxides of Mn (MnO2) and iron (Fe2O3) with carbon (C) normally as coke or coal. It is made by heating a mixture of the oxides Mn O2 and Fe 2 O 3, with carbon (usually as coal and coke) in either a blast furnace or an electric arc furnace -type system, called a submerged arc furnace. The oxides undergo carbothermal reduction in the furnaces, producing the ferromanganese