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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

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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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Goddamnit! My the bottom lid of my macbook cut me! damn you polished aluminium!
aeroscap (Eric) Tue, 03 Nov 2009 10:26:12 -0000
Goddamnit! My the bottom lid of my macbook cut me! damn you polished aluminium!
@notflorian @pepegaffner des dosettes constituées à 80% d'aluminium recyclé + marc de café http://tinyurl.com/ykv6zxo #WhatElse
TweeterPan (Joel) Tue, 03 Nov 2009 10:16:18 -0000
@notflorian @pepegaffner des dosettes constituées à 80% d'aluminium recyclé + marc de café http://tinyurl.com/ykv6zxo #WhatElse
Windsor 24" Square Picnic Folding Table, Aluminium Patio Furniture, Deck Furniture Patio - http://bit.ly/3vlv84
seoonline (Techexpert) Tue, 03 Nov 2009 10:05:07 -0000
Windsor 24" Square Picnic Folding Table, Aluminium Patio Furniture, Deck Furniture Patio - http://bit.ly/3vlv84
European Aluminium to Regain Momentum by 2011: Economic recovery and growth in industrial sector will revive th.. http://digg.com/u1FcHH
articleshub_org (Articles Hub) Tue, 03 Nov 2009 09:56:00 -0000
European Aluminium to Regain Momentum by 2011: Economic recovery and growth in industrial sector will revive th.. http://digg.com/u1FcHH
DIMM 4 GB DDR3-2133 Kit (Arbeitsspeicher DDR3-2133): In Aluminium "verpackte" Sachen werden von uns ja häu.. http://bit.ly/JvTxI
myzackzack_alle (myzackzack_alle) Tue, 03 Nov 2009 09:50:19 -0000
DIMM 4 GB DDR3-2133 Kit (Arbeitsspeicher DDR3-2133): In Aluminium "verpackte" Sachen werden von uns ja häu.. http://bit.ly/JvTxI
apple-fail: magic mouse ist in der verpackung festgeklebt. klebereste auf aluminium. meh.
antiwhat (antiwhat) Tue, 03 Nov 2009 09:50:14 -0000
apple-fail: magic mouse ist in der verpackung festgeklebt. klebereste auf aluminium. meh.

 

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Alrod Ltd - Specialist finishers and fabricators of aluminium extrusions.
Meta Description: [ Alrod Ltd, fabricating and finishing components in aluminium extrusion. We take customers products from a design stage to fully fabricated components, through from prototype to mass production. ]

H Snelson Engineers Ltd - Suppliers of aluminium extrusions - cut, machined, polished, anodised, painted and sub-assembled. Describes capabilities, machines and products plus aluminium data.
Meta Description: [ aluminium extrusions, fabricators, powder coating, anodising, H.Snelson Engineers Ltd, UK ]

Metalfast - Plate, bar, tube and extrusion stockholders in Swindon and Oldbury. Describes the company, services, product range and capabilities with a stock list.
Meta Description: [ Metalfast are aluminium stockholders specialising in cut aluminium plate, bar and tooling plate, but we also stock stainless steel, brass, copper, bronze, and engineering plastics with branches in Swindon Oldbury Huntingdon and Bredbury ]

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