Aluminum ingot (alloy ingot) is used alumina - cryolite produced by electrolysis. Aluminum ingot (alloy ingot) into the following industrial applications there are two categories: cast alloy ingot and deformed alloy ingot. Casting alloy and aluminum alloy ingot casting method is based on the production of aluminum castings; deformation of aluminum alloy ingot and processing methods based on pressure from the production of aluminum processed products: plate, belt, foil, tube, rod, type, wire and forgings. In accordance with <<remelting aluminum ingot>> national standards, "with the aluminum ingot remelting (alloy ingot) by chemical composition is divided into six grades, namely Al99.85, Al99.80, Al99.70, Al99.60, Al99 .50, Al99.
00 "(Note: Al figures are after the aluminum content).