aluminum alloy composition based on al-mn combined with a homogenization treatment the present invention relates to an extrusable aluminum alloy billet which includes an aluminum alloy composition including, by weight percentage, between 0.90 and 1.30 manganese, between 0.05 and 0.25 iron, between 0.05 and 0.25 silicon, between 0.01 and 0.02 titanium, less than 0.01 copper, less than 0.01 nickel, and less than 0.05 magnesium, the aluminum alloy billet being homogenized at a temperature ranging between 550 and 600 ºc.
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