Anti-corrosion aluminum alloy section

The invention discloses an anti-corrosion aluminum alloy section, which belongs to the field of metal materials. The aluminum alloy section comprises the following components by weight: 0.75 to 0.90% of Mg, 0.5 to 0.6% of Si, 0.10 to 0.14% of Cu, 0.20 to 0.25% of Mn, 0 to 0.1% of Ti, 0 to 0.1% of Cr, 0.1 to 0.3% of Fe and 0.20 to 0.28% of Zn, with the balance being Al. According to the invention, through optimization of alloy components and the production procedures of melting and casting, homogenization, extrusion, heat treatment and surface processing, the aluminum alloy section has effectively improved mechanical properties and surface film quality.