The steel grade does not corrode when exposed to moisture, and the rust layer underneath protects the underlying steel, making it stronger. Corten A steel plates are aesthetically pleasing and have been used in a variety of construction projects including the design of bridges due to their high weather resistance. Corten A Steel Plate Manufacturers, Corten A Steel Plate Suppliers, Corten A Steel Plate Stockists, Corten A Steel Plate Exporters Corten A Steel Plate is commonly used in buildings, bridges and sculptural exteriors because of its superior weathering resistance.