Aluminum is a silver - white metal, which is second to oxygen and silicon in the third place in the earth's crust. The density of aluminum is small, only 34.61% of iron and 30.33% of copper, so it is also called light metal. Aluminum is the world's nonferrous metal, which is second only to steel. The density of aluminum is only 2.7103g/cm3, about 1/3 of the density of steel, copper or brass. Because of the light weight of aluminum, it is commonly used to manufacture land, sea and air vehicles such as automobiles, trains, subways, ships, airplanes, rockets, ships, so as to reduce self weight and increase load.
Aluminum ingot is made up of three kinds of remelting aluminum ingots, high purity aluminum ingots and aluminum alloy ingots according to their compositions. According to shape and size, it can also be divided into bars, round ingots, slab ingots, T ingot and so on.
Several common aluminum ingots:
Aluminum ingots for remelting --15kg (99.80%Al, 20kg):
T shaped aluminum ingot --500kg, 1000kg (99.80%Al):
High purity aluminum ingot --l0kg, 15kg (99.90% ~ 99.999%Al);
Aluminum alloy ingot --10kg, 15kg (Al--Si, Al--Cu, Al--Mg);
Plate ingot --500 ~ 1000kg (plate making);
Circular ingot --30 ~ 60kg (drawing for wire drawing)