Nucor Corporation declared that Nucor-Yamato Steel Company (NYS), a joint venture between Nucor and Yamato Kogyo Co. Ltd, is installing a USD 75M Quench and Self-Tempering(QST) process to be utilized on its 1.4M tons of Mill 2 rolling capacity. Nucor Chairman, CEO and President John Ferriola was joined by Arkansas Governor Asa Hutchinson to make the declaration at the Nucor-Yamato Steel mill in Blytheville, Arkansas.
The process will give NYS the ability to produce ASTM A913 Grade 65 and Grade 70 structural sections with a high-strength, low-alloy grade chemistry that provides excellent weldability while achieving good toughness at low temperatures.
Common applications for the material includes gravity columns for use in high-rise buildings, long-span trusses for projects such as convention centres or stadiums, and for all projects where seismic design is a critical factor. The higher strength achieved from A913 will allow lighter foot weights to be specified, which reduces the overall weight and material cost for the owner, making steel even more competitive versus concrete and wood.