... mainly used in smelting,steelmaking and casting. Raw Material The ferro silicon granule takes the coke, scrap steel, and silica as ... raw materials ,which is made by the electrosmelting. Introduction The ferro silicon granule is bright grey, and the density is small ... : silver gray, massive, not powder Melting Point :1080-1250 °C Weight proportion :4.7-5.4 Size :0-3mm ,1-10mm ,3-8mm ...