3003 Aluminum is alloyed with 1.20% manganese, which increases the strength of 3003 over commercially pure aluminum (1100 series). 3003 has excellent workability, weldability, and good corrosion resistance. It is used for drawing, forming, spinning, fuel tanks, sheet metal works and other applications that require moderate strength for an aluminum with good weldability. H14 designates the temper, and means that 3003 has been strain hardened and partially annealed. 3003-H14 Aluminium sheet/plate is widely used for stampings, spun and drawn parts and products, cooking utensils, chemical equipment, builders hardware, storage tanks, truck and trailer components, mail boxes, cabinets, fan blades, awnings, siding, kitchen equipment, decorative trim, architectural uses, signage applications, etc