(1)The density of aluminum is very small, only 2.7g/cm3, although it is relatively soft, but can be made into a variety of aluminum alloys, such as duralumin, super-hard aluminum; rust-resistant aluminum, aluminum casting.
(2)Aluminum's conductivity is second only to silver and copper, although its conductivity is only 2/3 of copper, but the density is only 1/3 of copper, so transport the same amount of electricity, the quality of aluminum wire is only half of the copper wire. The oxide film on the surface of aluminum not only has the ability to resist corrosion, but also has a certain degree of insulation, so aluminum in the electrical manufacturing industry, wire and cable industry and radio industry has a wide range of uses.
(3) Aluminum is a good conductor of heat, its thermal conductivity is three times greater than that of iron, aluminum can be used in industry to manufacture a variety of heat exchangers, heat dissipation materials and cookware.
(4)Aluminum has good ductility (its ductility is second only to gold and silver), at 100 ℃ ~ 150 ℃ can be made thinner than 0.01mm of aluminum foil, these foils are widely used in the packaging of cigarettes, candy, etc., but also can be made of aluminum, aluminum, aluminum wire, and can be rolled a variety of aluminum products.
(5) The surface of aluminum is not easily corroded due to the dense oxide protective film, often used to manufacture chemical reactors, medical equipment, refrigeration devices, oil and gas pipelines.
(6)Aluminum powder has a silvery-white luster (the general color of the metal in powder form when the color is mostly black), often used to make paint, commonly known as silver powder, silver paint, to protect iron products from corrosion, and beautiful.
(7) aluminum thermite is commonly used to melt refractory metals and welding rails, etc.. Aluminum is also used as a deoxidizer in the steelmaking process. Aluminum powder and graphite, titanium dioxide (or other high melting point metal oxides) according to a certain ratio of uniformly mixed, coated in metal, calcined at high temperatures and made of high-temperature-resistant metal ceramics, which has important applications in rocket and missile technology.
(8)Aluminum plate is also very good at reflecting light, the purer the aluminum, the better its reflective ability, so it is often used to make high-quality mirrors, such as solar cooker mirrors.
(9) Aluminum has sound-absorbing properties, acoustics is also better, so the broadcasting room, modern large-scale building indoor ceiling, etc. are also commonly used aluminum.