Aluminium (aluminium in American and Canadian English) is a chemical element with the atomic number 13 and the symbol Al. Aluminium has a lower density than most common metals, about one-third that of steel. When exposed to air, it creates a protective coating of oxide on the surface due to its high affinity for oxygen. Aluminium mimics silver in appearance, both in colour and in its ability to reflect light. It is pliable, nonmagnetic, and ductile. Aluminium has one stable isotope, 27Al, which is quite frequent, making it the eleventh most common element in the Universe. 26Al's radioactivity is employed in radiodating.

Aluminium is a post-transition metal in the boron group, and it forms compounds largely in the +3 oxidation state, as is typical for the group. Because the aluminium cation Al3+ is tiny and highly charged, it is polarising, and the bonds formed by aluminium tend to be covalent. Because of its strong affinity for oxygen, aluminium is commonly found in nature in the form of oxides; as a result, aluminium is found on Earth primarily in rocks in the crust, where it is the third most abundant element after oxygen and silicon, rather than in the mantle, and almost never as a free metal.

Danish physicist Hans Christian rsted announced the discovery of aluminium in 1825. In 1856, French chemist Henri Étienne Sainte-Claire Deville began the first industrial manufacture of aluminium. The Hall-Héroult technique, developed separately by French engineer Paul Héroult and American engineer Charles Martin Hall in 1886, made aluminium far more accessible to the public, and mass manufacturing of aluminium led to its widespread use in industry and everyday life. Aluminium was a critical strategic material for aircraft during World Wars I and II. Aluminium surpassed copper as the most produced nonferrous metal in 1954. The majority of aluminium consumed in the twenty-first century was in transportation, engineering, construction, and packaging in the United States, Western Europe, and Japan.

Despite its abundance in the environment, no living thing is known to utilise aluminium salts metabolically; yet, plants and animals tolerate aluminium well. Because of the abundance of these salts, the possibility of them playing a biological role is of continuous interest, and research is ongoing. If you are interested in aluminium profile manufactures then visit kmcaluminium.com.