| Northwestern University developed copper-precipitation-hardened, high-performance weathering steel that is produced by hot rolling after casting and then air-cooling. Due to simple processing the steel is fabricated at lower cost than competing high-performance steels that require quench and tempering. This steel can be easily welded without pre- or post-heating. The fracture toughness of the steel is excellent particularly at cryogenic temperatures. Weathering resistance and corrosion properties are better than that of any other available construction steel. The steel is included into ASTM A710 Standard. The steel is an excellent candidate for infrastructure applications such as bridges, posts, signs, railings, etc. as well as for applications in other fields. Information provided by Professor Semyon Vaynman of Northwestern University. Composition Notes: Composition as tested at Northwestern University. |
