2A12 is the grade of aluminum alloy, and the common T4 is its heat treatment supply method, which means air cooling and natural aging.2A12 corresponds to the US 2124 alloy, which is a typical hard aluminum alloy in the aluminum-copper-magnesium series. Its composition is reasonable and the overall performance is better.Many countries produce this alloy, which is the largest in duralumin.The characteristics of the alloy are: high strength, a certain degree of heat resistance, and can be used as working parts below 150 °C .
2A12 is primarily alloyed with copper. It also contains manganese and magnesium and can sometimes contain smaller amounts of silicon, iron, chromium, zinc and/or titanium.
2024 alloy is often chosen for applications that require high strength