Aluminum Sheet/Plate 2024 O Temper Bare is normally used for aerospace, automotive, machine, and industrial applications. 2024 aluminum is one of the strongest aluminum alloys, and the cladding provides exceptional corrosion resistance. 2024 sheet/plate stock is available in full size and custom cut lengths. ATTENTION: O TEMPER MATERIAL IS EXTREMELY SOFT AND MUST BE HEAT TREATED TO ATTAIN HARDNESS.