Aluminium (aluminum in North American English) is a chemical element with the symbol Al and atomic number 13. Aluminium has a density lower than those of other common metals; about one-third that of steel. LIST OF BEST ALUMINUM COMPANIES IN THE WORLD. It has a great affinity towards oxygen, forming a protective layer of oxide on the surface when exposed to air. Aluminium visually resembles silver, both in its color and in its great ability to reflect light. It is soft, nonmagnetic and ductile. It has one stable isotope: 27Al, which is highly abundant, making aluminium the twelfth-most common element in the universe. The radioactivity of 26Al is used in radiometric dating.
Chemically, aluminium is a post-transition metal in the boron group; as is common for the group, aluminium forms compounds primarily in the +3 oxidation state. The aluminium cation Al3+ is small and highly charged; as such, it is polarizing, and bonds aluminium forms tend towards covalency. The strong affinity towards oxygen leads to aluminium’s common association with oxygen in nature in the form of oxides; for this reason, 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 virtually never as the free metal. It is obtained industrially by mining bauxite, a sedimentary rock rich in aluminium minerals.
The discovery of aluminium was announced in 1825 by Danish physicist Hans Christian Ørsted. The first industrial production of aluminium was initiated by French chemist Henri Étienne Sainte-Claire Deville in 1856. Aluminium became much more available to the public with the Hall–Héroult process developed independently by French engineer Paul Héroult and American engineer Charles Martin Hall in 1886, and the mass production of aluminium led to its extensive use in industry and everyday life. In World Wars I and II, aluminium was a crucial strategic resource for aviation. In 1954, aluminium became the most produced non-ferrous metal, surpassing copper. In the 21st century, most aluminium was consumed in transportation, engineering, construction, and packaging in the United States, Western Europe, and Japan.
Despite its prevalence in the environment, no living organism is known to use aluminium salts for metabolism, but aluminium is well tolerated by plants and animals. Because of the abundance of these salts, the potential for a biological role for them is of interest, and studies continue.
HERE IS A LIST OF BEST ALUMINUM COMPANIES IN THE WORLD
Alcoa Corporation (an acronym for “Aluminum Company of America“) is a Pittsburgh-based industrial corporation. It is the world’s eighth-largest producer of aluminum. Alcoa conducts operations in 10 countries. Alcoa is a major producer of primary aluminum, fabricated aluminum, and alumina combined, through its active and growing participation in all major aspects of the industry: technology, mining, refining, smelting, fabricating, and recycling.
On November 1, 2016, Alcoa Inc. split into two entities: a new one called Alcoa Corporation, which is engaged in the mining and manufacture of raw aluminum, and the renaming of Alcoa Inc. to Arconic Inc., which processes aluminum and other metals.
Aleris Corporation (also Aleris Inc. or Aleris International Inc.) was an American aluminum rolled products producer, based in Beachwood, Ohio. The company had approximately 5,000 employees globally as of mid 2015.
On 15 April 2020, Aleris Corporation was acquired by Hindalco Industries subsidiary Novelis Inc. for $2.8 billion. With the deal closure, Hindalco is now one of the world’s largest aluminium makers and Novelis’ entered into the high-end aerospace segment.
By using hydroelectricity to power its smelters, EN+ Group’s manufacturing process generates 80% less emissions than coal-burning manufacturers in China. The company has set ambitious goals for achieving net-zero emissions in the production of “green aluminum.” The company is the world’s largest independent hydropower generator.
EN+ is led by Vladimir Alekseevich Kiryukhin. In 2020, the company reported revenues of $10.36 billion and a net income of $1.86 billion. It is publicly traded and listed on the London Stock Exchange
The company is listed in the Forbes Global 2000 at 895th rank. Its market capitalisation by the end of May 2013 was US$3.4 billion.
Norsk Hydro ASA (often referred to as just Hydro) is a Norwegian aluminium and renewable energy company, headquartered in Oslo. It is one of the largest aluminium companies worldwide. It has operations in some 50 countries around the world and is active on all continents. The Norwegian state owns 34.3% of the company through the Ministry of Trade, Industry and Fisheries. A further 6.5% is owned by Folketrygdfond, which administers the Government Pension Fund of Norway. Norsk Hydro employs approximately 35,000 people. Hilde Merete Aasheim has been the CEO since May, 2019.
Hydro had a significant presence in the oil and gas industry until October 2007, when these operations were merged with Statoil to form StatoilHydro (in 2009 changed back to Statoil, which is now called Equinor).
United Company RUSAL, international public joint-stock company (Russian: МКПАО «ОК РУСАЛ», romanized: MKPAO «ОК RUSAL») is the world’s second largest aluminium company by primary production output (as of 2016). It was the largest until overtaken by China Hongqiao Group in 2015. UC RUSAL accounts for almost 9% of the world’s primary aluminium output and 9% of the world’s alumina production.
The United Company was formed by the merger of RUSAL (Russkiy alyuminiy, lit. Russian aluminium) (Russian: Русский алюминий), SUAL, and the alumina assets of Glencore, completed in March 2007. According to its own statistics, UC Rusal accounts for 6.2% of the world’s primary aluminium output and 6.5% of the world’s alumina production, while operating assets in 13 countries over five continents, employing over 61,000 people across its international operations and offices.
The company is incorporated in Jersey, where it has its financial centre, but its headquarters are in Moscow, Russian Federation. UC Rusal is a public limited company and its shares are traded on the Moscow Stock Exchange, Hong Kong Stock Exchange and European Stock Exchange. Since 25 September 2020, the company changed its place of registration from Jersey to Kaliningrad, Russia. In 2021 RUSAL announced a proposal to demerge its high carbon assets and change its name to AL+.