... ,3--8mm,3--25mm,25--50mmSpecificationsThe ferro silicon granule is silver grey,grain,and it is mainly used in smelting,steelmaking and ... by the electrosmelting. Introduction The ferro silicon granule is bright grey, and the density is small. The more silicon, the lower ... of silicon ,95%, 75%, 65% and 45%, etc. Property Appearance: silver gray, massive, not powder Melting Point :1080-1250 °C Weight ...