2024 aluminum can be identified as an aluminum alloy that is heat-treatable, extremely strong, and contains copper as the main alloying element. A superior strength-to-weight ratio makes the aluminum alloy common in aerospace applications. This metal alloy is highly versatile, and therefore one of the most highly sought-after aluminum alloys today.

Here is a table showing the chemical composition of 2024 aluminum:

ALUMINIUM ALLOY Si Fe Cu Mn Mg Cr Zn Ti Zr Others Al
2024 0.5 0.5 3.8-4.9 0.3-0.9 1.2-1.8 0.1 0.25 0.15 —— totally 0.15 reminder

✣All compositions are in percent.

Other properties supplement the high strength-to-weight ratio of this material. They include a good capability to be welded, machinability, heat resistance, and corrosion resistance.