Weld for the Outdoors: Welding Corton Steel
Common weathering steel specifications used in structural fabrication include ASTM A242, A588, A606 and A847. Specifications common to bridge fabrication include ASTM A709 and AASHTO M270. Several manufacturers also use trade names to indicate their unique patented formulations of weathering steel, such as U.S. Steel's COR-TEN®.