The main properties of aluminum.

Date: 2018-05-03 Author: admin Click:

Aluminum is characterized by its good appearance, light weight, machinability, physical and mechanical properties, and good corrosion resistance, making it considered the most economical and practical in many applications. The density of aluminum is only 2.7g/cm3, which is approximately the density of steel, copper or brass (7.83g/cm3, 8.93g/cm3), and 1/3. In most environmental conditions, including air, water (or brine), petroleum chemistry, and many chemical systems, aluminum exhibits excellent corrosion resistance. The surface of aluminum is highly reflective. Radiation, visible light, radiant heat and waves can effectively be aluminum reflector, and the surface of the anodic oxidation and dark anodic oxidation can be reflective, also can be absorptive, after polishing aluminum over a very wide wavelength range with excellent reflective, thus has a variety of decorative purposes and reflexive functional purposes. Aluminum usually shows excellent conductivity and thermal conductivity, and certain aluminum alloys with high resistivity have been developed. These alloys can be used in high-torque motors. Aluminum is often chosen because of its excellent conductivity. On the basis of equal weight, the conductivity of aluminium is nearly twice as high as that of copper. Aluminum is non-ferromagnetic, an important characteristic for the electrical and electronic industries. Aluminum is not spontaneous combustion, which is important for applications involving handling or contact with inflammable and explosive materials.
Aluminum nontoxic: a container commonly used to make food and drink. Its natural appearance has a pleasing appearance. It is soft, shiny, and can be colored or patterned for beauty. Some aluminum alloys exceed structural steel in strength, but the strength and hardness of pure aluminum and certain aluminum alloys are extremely low. In modern life, aluminum has been widely used in construction industry.
Machinability: the machinability of aluminum is excellent. In all kinds of deformed aluminum alloy and cast aluminum alloy, and in the various states after the output of these alloys, machining characteristics vary considerably, which requires special machine tools or techniques.
Formability: this is one of the more important properties of aluminum. The specific tensile strength, yield strength, ductility and the corresponding processing hardening rate control the variation of allowable deformation. The rated value of the commercially available aluminum alloy in different forms depends on the forming process. These ratings can only serve as a general guide in the qualitative control of metalworking properties, i.e., they cannot be quantitatively used as the extreme values of formability.
Recyclability: aluminum is highly recyclable, and the properties of recycled aluminum are almost as good as native aluminum. This makes aluminium a darling of environmentalists.