ferromanganese 1.Made by manganese,iron, small amout of C,Si,S,P. 2.Used as alloy agent, ... made from manganese,silicon,iron and a small amount of carbon and other element of the alloy,it used as deoxidizer,desulferizer and ... additive in smelting special steel.It can be divided as high carbon ... ,FeMn88C0.2 80-921-20.70.020.4 Low carbon ferromanganese