We supply aluminum sheet 3003 as per customer's requirements. 3003 chemical composition Aluminum Balance Copper 0.05 - 0.2 Iron 0.7 max Manganese 1 - 1.5 Remainder Each 0.05 max Remainder Total 0.15 max Silicon 0.6 max Zinc 0.1 max AL 3003 is an alloy with very good corrosion resistance and moderate strength. It is not heat treatable and develops strengthening from cold working only. Applications Commonly used in chemical equipment, ductwork, and in general sheet metal work. 3003 is also used in the manufacture of cooking utensils, pressure vessels, builder's hardware, eyelet stock, ice cube trays, garage doors, awning slats, refrigerator panels, gas lines, gasoline tanks, heat exchangers, drawn and spun parts, and storage tanks. Machinability The AL 3003 alloy is readily machined and is considered as having good machinability for the aluminum alloys