Primary aluminum is pure aluminum obtained by mining aluminum ore and refined by electrolytic cell.

Recycled aluminum waste aluminum alloy materials or aluminum-containing waste or waste aluminum alloy after re-melting aluminum metal and aluminum alloy, which is also an important source of metal aluminum.

Primary aluminum and recycled aluminum products are all kinds of standard or non-standard aluminum alloy ingots, the difference is mainly that the material is not the same. The material of primary aluminum is bauxite, and the material of recycled aluminum has the scraps, old wastes and chips that occur during the production and processing of various aluminum materials, as well as aluminum waste that occurs after the waste of aluminum-containing goods, such as old aluminum doors and Windows.

The profile produced by primary aluminum has fine luster, smooth inner wall, and uniform drawing. The recycled aluminum has many impurities, poor luster, obvious particle feeling on the inner wall, and uneven drawing. The sound of original aluminum is crisp, and the sound of recycled aluminum is dull.

Compared with recycled aluminum, the original aluminum has stronger strength, hardness, toughness and oxidation resistance and longer service life.