Calcium metal is not only an ideal agent for deoxidization, decarburization and desulphurization but also a reducing agent for preparation of high purity rare earth metal. It is also used to manufacture maintenance free lead calcium accumulator. Calcium metal also has been widely applied in medicine industry. Calcium alloy acts as reducer and additive in metallurgical industry for desulphurization, deoxidization and cleanness of molten steel.