Non-ferrous casting usually refers to removal of iron (including manganese, chromium and ferro alloys) of metal casting processes. The common materials for non ferrous casting: copper, lead, zinc, aluminum, magnesium, etc. Non ferrous castings are widely used in military, high-speed rail, ship, engineering machinery, pump, semiconductor equipment, wind power, power station and electrical equipment and so on.

The gravity casting is one type of permanent mold casting. The gravity casting main advantages are the reusable mold, good surface finish, good dimensional accuracy, and high production rates.