5052 aluminum alloy is the most widely used rust-proof aluminum. This alloy has high strength, especially fatigue resistance: high plasticity and corrosion resistance, cannot be strengthened by heat treatment, good plasticity during semi-cold hardening, low plasticity during cold hardening, good corrosion resistance, good weldability, poor machinability, and can be polished. It is mainly used for low-load parts that require high plasticity and good weldability and work in liquid or gas media, such as oil tanks, gasoline or lubricating oil pipes, various liquid containers and other small-load parts made by deep drawing: wire is used to make rivets.