What is the difference between 6061 and 2A12 aluminum?

The difference between 6061 and 2A12 aluminum lies in their alloy composition and mechanical properties.

6061 aluminum is an alloy that contains primarily aluminum, along with magnesium and silicon as the main alloying elements. It offers good strength, excellent formability, and corrosion resistance. 6061 is commonly used in structural applications, such as aircraft components, marine fittings, and general engineering purposes.

On the other hand, 2A12 aluminum is an alloy that contains primarily aluminum, with copper as the main alloying element. It offers higher strength compared to 6061, but with slightly reduced formability. 2A12 is commonly used in aerospace applications, such as aircraft structures, forgings, and fittings that require high strength and fatigue resistance.