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thumb|right|Aluminium ingot after ejection from mold thumb|right|Gold ingots thumb|Pouring molten gold into a mold at the commons:Category:La Luz Gold Mine|La Luz Gold Mine in Siuna, [[Nicaragua, about 1959.]] An ingot is a piece of relatively pure material, usually metal, that is cast into a shape suitable for further processing. In steelmaking, it is the first step among semi-finished casting products. Ingots usually require a second procedure of shaping, such as cold/hot working, cutting, or milling to produce a useful final product. Non-metallic and semiconductor materials prepared in bulk