1.Calcium metal can be used in steelmaking to produce high quality and special type steel. The calcium treatment can be the problem of clogging of caster nozzle in steelmaking and globular alumina inclusions and consequently improve the transverse properties of the steel.
2.Calcium metal can be used in battery industry to produce lead-calcium alloy which is the raw material of the negative plate of VRLAB.
3.In other metallurgical industry, calcium acts as deoxidizers and the reducing agent of other chemical composition in smelting the nonferrous metal, rare-earth metal and other metals which are difficult to be melted.
4.As a reducing agent, calcium also can be used to produce some medical intermediate in medical industry.