ferromanganese 1.Made by manganese,iron, small amout of C,Si,S,P. 2. ... desurfurizer ferromanganesesiliconmanganese alloy is made from manganese,silicon,iron and a small amount of carbon and other element of the alloy,it ... smelting special steel.It can be divided as high carbon ,meduim and low ferromanganese and which can be as material to ... .7,FeMn88C0.2 80-921-20.70.020.4 Low carbon ferromanganese