What is Duralumin?
'''Duralumin''' is an [[alloy]] made up of 90% [[aluminum]], 4% [[copper]], 0.5–1% [[magnesium]], and less than 1% [[manganese]]. It is an extremely hard alloy that is used, for example, in vehicle armour in the defense industry. == Other website == *[http://www.freepatentsonline.com/6792843.html Armor-plating composite] {{chem-stub}} [[Category:Alloys]]