ALUMINUM ALLOY AND METHOD OF MANUFACTURING EXTRUSION USING SAME

A high-strength aluminum alloy exhibiting excellent stress corrosion cracking resistance and excellent extrudability, and a method for producing an extruded shape using the same are disclosed. The aluminum alloy includes 1.6 to 2.6 mass% of Mg, 6.0 to 7.0 mass% of Zn, 0.5 mass% or less of Cu, and 0.01 to 0.05 mass% of Ti, with the balance being Al and unavoidable impurities.