Commercialization of NUCu Steel (TEA-21 Years 1-3 Final Report)Public Deposited
Northwestern University developed copper-precipitation-hardened, high-performance weathering steel (NUCu 70W 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. NUCu 70W 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 was used for rehabilitation of a bridge in Illinois and is planned to be used in construction of another bridge.
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