The 2000 series aluminum alloys are called “hard alloys” because they are very strong. These aluminum-copper alloys usually have 2 to 10% copper and a bit of other elements. The copper helps to make them stronger and allows for a process called precipitation hardening.

However, adding copper to aluminum can lower how well it bends and protects against rust. Even with these downsides, the 2000 series alloys are popular in many areas because they are strong and easy to work with. They are often used to make tough knobs, clock parts, strong screws, gears, and wire for welding and filling.

By using the special traits of the 2000 series aluminum, companies can make strong parts for many industries. The added strength from copper helps create high-quality and long-lasting products. These aluminum alloys are very common in the aerospace industry, as well as in cars, military gear, and sports gear. They are known for their trustworthiness and good performance.