7005 aluminium alloy

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7005 is an aluminium alloy used primarily for bicycle frames, due to its relative ease of welding. It has similar physical properties to 6061 aluminium alloy, except it has a higher density of 2.78 g/cm³, and depending on the temper, may be slightly stronger.

It does not need to be precipitation hardened, unlike 6061, but can be cooled in air.[1]

Chemical composition[edit]

The alloy composition of 7005 is: