Ferro Manganese (FeMn) is product of the blast furnace containing besides iron, 70 to 85% of manganese. It is used as a de-oxidizer for manufacturing of non-magnetic stainless steel and for the introduction of manganese into steel. Manganese is very important element in steel as it improves the strength, toughness, hardness and workability. Manganese also helps in getting ingots free from blow holes. It lowers the critical temperature and promotes the formation of pearlite. Manganese dissolves in solid solution of ferrite, combines with carbon to form carbides. it improves weldability, wear resistance and strength without adversely affecting the ductility of steel.
