Aluminum is a silver-white light metal, ductility. It's often made to rod-like, flake, foil, powder, ribbon and filamentous.
In humid air can form a layer of metal corrosion to prevent the oxide film.
Aluminum powder heated in the air can be fierce combustion, and issued a dazzling white flame. Soluble in dilute sulfuric acid, nitric acid, hydrochloric acid, sodium hydroxide and potassium hydroxide solution, insoluble in water.
The melting point of aluminum:
The relative density of aluminum is 2.70 g/mm3. The melting point of aluminum is 660 ℃, the boiling point of aluminum is 2327 ℃.
Aluminum content in the earth's crust is second only to the oxygen element and the silicon element, and aluminum is the most abundant metal element in the earth's crust.The development of Aviation,Construction and Automobiles industries requires the unique properties of aluminium profiles, which greatly contributes to the production and application of this new aluminum metal, so the aluminium profile is widely used.