... for cookware, 3003 alloy is good:aluminum circle,aluminum disc,aluminum round plate, aluminum round sheet,aluminum circle platecookware1050, 1060, 1070, 3003 ... , 3105, 6061thickness:0.1-10mmdiameter: 20-1000mmSpecially for the cookware and the road sign 3003 aluminum circle for cookware and kitchenware