| 摘要 |
An extrudable aluminium alloy billet includes an aluminium alloy composition including, in weight percent, 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 aluminium alloy billet being homogenized at a temperature ranging between 550 and 600 °C. |
