Aluminum alloy sheet having high formability

An aluminum alloy sheet having high formability, the aluminum alloy sheet being an Al—Mg—Si aluminum alloy sheet comprising, in mass percent:

• Si in a content of 0.30% to 2.0%;
• Mg in a content of 0.20% to 1.5%;
• Cu in a content of 0.05% to 1.0%;
• Mn in a content of greater than 0% to 1.0%;
• and
• Fe in a content of greater than 0% to 1.0%,
• with the remainder consisting of Al and inevitable impurities,
• the aluminum alloy sheet having a microstructure at a sheet thickness central position,
• the microstructure having an average grain size of 40 μm or less,
• the microstructure comprising small angle grain boundaries with a tilt angle of 2.0° to 15.0° in an average proportion of 12% to 30% after tensile deformation at a strain of 5% being imparted in a rolling direction of the sheet;
• and
• the microstructure comprising small angle grain boundaries with a tilt angle of 2.0° to 15.0° in an average proportion of 50% to 70% after tensile deformation at a strain of 15% being imparted in the rolling direction of the sheet.
• s measured by SEM/EBSD technique.