Specification covers aluminum and aluminum-alloy extruded bars, rods, wire, profiles, and tubes. Current edition approved October 1, 2005, originally approved in 1947. Specification includes both aluminum and aluminum alloy definitions
Duralumin was developed in 1909 by Alfred Wilm in Germany. Contains 91-95% aluminum, 3.8-4.9% copper, and other alloying elements. Name combines Dürener and aluminum, now used for all Al-Cu alloys
AlCu alloys contain mainly aluminum and traces of copper. Important grades include magnesium, iron, nickel, silicon, and manganese. Copper content ranges from 3 to 6%. Alloys have medium to high strength and can be age hardened. Susceptible to corrosion and poor weldability
Very good welding properties and corrosion resistance. High electrical and thermal conductivity. Excellent anodising properties for decorative applications. Suitable for food industry according to DIN EN 602
Aluminum alloys contain other elements to enhance strength. Alloys are identified by four-digit numbers, first digit indicates main alloying elements. Elements like iron, silicon, copper, magnesium, manganese and zinc can make up to 15%
British Standard BS EN 12020-2:2016 supersedes EN 12020-2:2008. European Standard EN 12020-2 approved by CEN in March 2016. Published in English, French, and German versions