Silicon calcium is composed of the elements of silicon, calcium and iron, is an ideal compound deoxidizer, desulfurization agent. It is widely used in high quality steel, low carbon steel, stainless steel production and nickel base alloy, titanium alloy and other special alloy production. In cast iron production,the calcium silicon alloy have inoculation effect.helped to form fine grained or spheroidal graphite; in the grey cast iron Graphite distribution uniformity,reduce chilling tendency,and can increase silicon,desulfurization,improve the quality of cast iron.