Corten Flat Bar Supplier | Central Steel Service
ASTM A588 and A709-50W corrosion-resistant and high-strength steel flats are available in the various sizes listed. A588 is considered the ASTM equivalent for Cor-Ten® flat bar. Dual certified to meet: ASTM A588 ( Learn more) ASTM A709-50W ( Learn more) Standard stock length is 20'.