The alloy 6069 is a new entry to the family of 6000 series of heat treatable Mg-Si-Cu aluminum alloys. The data available, while not sufficient to establish design mechanical property values for 6069, indicate that tensile ultimate and yield strengths for the T6 condition are about 40 percent higher than its sister 6061 alloy and essentially equal to the tensile properties of 6013-T6 sheet. Corrosion resistance does not appear to be inferior to 6061. Present applications are high pressure seamless gas containers formed by either hot or cold impact extrusion and tubing for light weight bicycle frames. A substantial amount of the available data was obtained from tests specified in ISO 7866 (Ref. 1) for seamless aluminum gas cylinders additional data was also obtained by the producer.