ASTM A847 | Corten Pipe and Tube | Corten.com
ASTM A847 is intended for welded, bolted or riveted construction of bridges and other structures where high strength and enhanced corrosion resistance are required. ASTM A847 has a 50ksi minimum yield strength and a 70ksi minimum tensile strength. It's cold formed and welded to insure chemical consistency throughout the entire tube surface.