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Aluminium or aluminum (see the spelling section below) is the chemical element in the periodic table that has the symbol Al and atomic number 13. It is a silvery and ductile member of the poor metal group of chemical elements. Aluminium is found primarily as the ore bauxite and is remarkable for its resistance to corrosion (due to the phenomenon of passivation) and its light weight. Aluminium is used in many industries to make millions of different products and is very important to the world economy. Structural components made from aluminium and its alloys are vital to the aerospace industry and very important in other areas of transportation and building in which light weight, durability, and strength are needed.

Properties


Aluminium is a soft and lightweight metal with a dull silvery appearance, due to a thin layer of oxidation that forms quickly when it is exposed to air. Aluminium is nontoxic (as the metal), non-magnetic, and non-sparking. Pure aluminium has a tensile strength of about 49 megapascals (MPa) and 400 MPa if it is formed into an alloy. Aluminium is about one-third as dense as steel or copper; is malleable, ductile, and easily machined and cast; and has excellent corrosion resistance and durability due to the protective oxide layer. Aluminium mirror finish has the highest reflectance of any metal in the 200-400 nm (UV) , and the 3000-10000 nm (far IR) regions, while in the 400-700 nm visible range it is slightly outdone by silver, and in the 700-3000 (near IR) by silver, gold and copper. It is the second most malleable metal (after gold) and the sixth most ductile. Aluminium is a good heat conductor which is why it is used to make saucepans.

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just managed to burn the saucepan with the Xmas pud in. Melted aluminium & plastic. #fb
mscodex (Pam Palmer) Sun, 27 Dec 2009 15:11:07 -0000
just managed to burn the saucepan with the Xmas pud in. Melted aluminium & plastic. #fb
I pronounce it aluminium, 'cause there's an I next to the U and M.
x__sandra (Sandra Mendes) Sun, 27 Dec 2009 15:02:55 -0000
I pronounce it aluminium, 'cause there's an I next to the U and M.
Qatar's first aluminium plant begins production http://news.qatarguidebook.com/qatars-first-aluminium-plant-begins-production.html
QatarDailyNews (Qatar Daily News) Sun, 27 Dec 2009 14:52:53 -0000
Qatar's first aluminium plant begins production http://news.qatarguidebook.com/qatars-first-aluminium-plant-begins-production.html
RT @medienpirat Nespresso verbraucht 1200 % mehr Aluminium (40g) als eine Standard Vakuum Verpackung (3g) für 35 Tassen http://u.nu/879t3
annabellalamp (Annabella Lamprecht) Sun, 27 Dec 2009 14:18:02 -0000
RT @medienpirat Nespresso verbraucht 1200 % mehr Aluminium (40g) als eine Standard Vakuum Verpackung (3g) für 35 Tassen http://u.nu/879t3
Nespresso verbraucht 1200 % mehr Aluminium (40g) als eine Standard Vakuum Verpackung (3g) für 35 Tassen http://u.nu/879t3
medienpirat (Florian Hörantner) Sun, 27 Dec 2009 14:17:22 -0000
Nespresso verbraucht 1200 % mehr Aluminium (40g) als eine Standard Vakuum Verpackung (3g) für 35 Tassen http://u.nu/879t3
@ameleea betul @indahkurniawaty,better aluminium,mak.asal jgn aluminium foil..gak bisa buat masak itu mah,mak..
emakayska (margaret christina) Sun, 27 Dec 2009 14:06:53 -0000
@ameleea betul @indahkurniawaty,better aluminium,mak.asal jgn aluminium foil..gak bisa buat masak itu mah,mak..

 
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United Aluminium - Aluminium extrusion engineers, specialising in modular display systems, point of purchase features and glass extrusion. Includes product gallery and specifications.

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