5052 aluminum is Al-Mg alloy aluminum, magnesium is the main alloy element in 5052 alloy aluminum, is the most widely used one kind of rustproof aluminum, this alloy has high strength, especially the fatigue strength: High plasticity and corrosion resistance, heat treatment can not be strengthened, in the semi-cold hardening plasticity is good, cold hardening plasticity is low, good corrosion resistance, good weldability, poor cutting performance, polishing.