The 2000 series alloy is an aluminum alloy that can be strengthened by heat treatment. It has excellent forgeability, high strength, good welding performance, and good baking strengthening effect, but its corrosion resistance is lower than other series of aluminum alloys. 2036 and 2022 alloys are already partially used in automotive body panels. The 5000 series alloy is an aluminum alloy that cannot be strengthened by heat treatment. It has good corrosion resistance and welding performance.
However, it may produce Lüders lines and delayed yielding during processing deformation in the annealed state. Therefore, it is mainly used for shapes such as body inner panels. Complex parts.
6000 series alloy is a heat-treatable strengthened aluminum alloy with high strength, good plasticity and excellent corrosion resistance. Compared with steel plates, the yield strength and tensile strength of 6000 series 2T4 tempered plates are similar, and the hardening coefficient even exceeds that of steel plates.
6009, 6010 and 6016 aluminum alloys are used in automobile body outer and inner panels due to their good plasticity and the ability to achieve artificial aging during the paint baking process after forming to obtain higher strength.
