Aluminum alloy products and a method of preparation

A method of producing a metal sheet, comprising:

• casting an aluminum alloy to form an ingot, wherein the aluminum alloy comprises Cu 0.40-0.80 wt. %, Fe 0-0.40 wt. %, Mg 0.40-0.90 wt. %, Mn 0-0.40 wt. %, Si 0.40-0.7 wt. %, Cr 0-0.2 wt. %, Zn 0-0.1 wt. % and Ti 0-0.20 wt. % with trace element impurities 0.10 wt. % maximum, and Al;
• homogenizing the ingot;
• hot rolling the ingot to produce a hot band;
• cold rolling the hot band to produce a sheet having a final gauge thickness;
• solution heat treating the sheet at a solution heat treatment temperature from 450° C. to 575° C.;
• quenching the sheet following solution heat treatment;
• and
• reheating the sheet;
• wherein the sheet comprises from −0.30 wt. % to 0.10 wt. % excess Si for forming Mg2Si;
• wherein the sheet has a yield strength of at least 300 MPa and an r/t bendability ratio of 0.8 or less.