ferromanganese 1.Made by manganese,iron, small amout of C,Si,S,P. 2.Used as alloy agent,compound deoxidizer, ... ferromanganesesiliconmanganese alloy is made from manganese,silicon,iron and a small amount of carbon and other element of the alloy,it ... to produce electrode weling rod.Specification TypeBrandMn%(min)Si%(max)C%(max)S%(max)P%(max)HCFeMn74,FeMn78,FeMn68 70-821 ...