Calcium-Silicon Alloys is one kind of complex alloy composed by Ca and Si,it is one ideal complex deoxidizer and desulfurizer,which were widely used in the production of fine steel,mild steel and stainless steel, nickel-based alloy and titanium based alloy etc.and other special alloy.Also suitable for use as the heat raising agent for converter workshop; Inoculant for casting ,and Additives for nodular casting.