Aluminum 5052 (UNS A95052)
Aluminum alloy 5052 contains nominally 2.5% magnesium, 0.25% chromium and has good workability, medium static strength, high fatigue strength, good weldability, and very good corrosion resistance, especially in marine atmospheres. It also has the low density and excellent thermal conductivity similar to other aluminum alloys. Alloy 5052 can be hardened by cold work and is not heat treatable to higher strength. Since the alloy spontaneously ages at room temperature immediately after cold work, all flat rolled mill products are supplied with stable properties using a stabilization treatment. This is usually achieved by a stabilization thermal treatment, either a low temperature thermal treatment or as a result of heat introduced during rolling, which results in the H3x tempers.
This grade is used in a wide range of atmospheric environments, including food and architectural applications and in many marine environments. The magnesium content is low enough that it does not suffer from the stress corrosion cracking that can affect alloys with more than about 3.5% Mg. Alloy 5052 is also used for consumer electronics casings, notebook computers and televisions.