Basic characteristics and application scope of aluminum
Aluminum is a main group element in the third period of the periodic table of elements, with an atomic number of 13 and an atomic weight of 26.9815.
Aluminum has a series of better properties than other non-ferrous metals, steel, plastics and wood, such as low density, only 2.7 g/cm3, which is about 1/3 of copper or steel; good corrosion resistance and weather resistance; Good plasticity and processing properties; good thermal and electrical conductivity; good low-temperature resistance, high reflectivity of photothermal and electric waves, and good surface properties; non-magnetic; basically non-toxic; sound-absorbing; good acid resistance; anti- Good nuclear radiation performance; small elastic coefficient; good mechanical properties;
excellent casting performance and welding performance; good impact resistance. In addition, aluminum has better high-temperature properties, formability, cutting processability, riveting properties and surface treatment properties. Therefore, aluminum materials have gained popularity in various fields such as aerospace, navigation, aviation, automobiles, transportation, bridges, construction, electronics and electrical, energy and power, metallurgy and chemical industry, agricultural drainage and irrigation, machinery manufacturing, packaging anti-corrosion, electrical appliances and furniture, daily culture and sports, etc. It has a very wide range of applications. The following table lists the basic properties and main application areas of aluminum.
