This is a popular general-purpose alloy. Very good corrosion resistance and finishability plus excellent weldability and strength level approximating that of a mild steel. Machinability is good and, in the annealed state, its workability carries a high rating, staying at the "good" level if heat treated without aging. Typical end uses are aircraft landing mats, large and small marine vessels, structural architectural parts, storage tanks, and highway signs.