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冷轧带肋钢筋用高线盘条在天津天钢集团有限公司研制成功。该盘条是针对生产LL550级和LL650级冷轧带肋钢筋而研制的专用产品。它的研制成功,结束了我国长期以来没有冷轧带肋钢筋专用母材的历史。 冷轧带肋钢筋作为建设部1994年、1995年和“九五”期间重点推广应用新技术,已被建筑业广泛使用,目前,我国年生产能力达166万t。但长期以来由于没有开发出相应的专用母材,一直用Q215、Q235等普碳盘条替代,生产出的成品往往在抗拉强度、伸长率上不符合国家标准或不能满足用户要求。天津天钢集团有限公司针对冷轧带肋钢筋对其母材的
Cold-rolled ribbed bars with high wire rod in Tianjin Tiangang Steel Group Co., Ltd. successfully developed. The wire rod for the production of LL550-level and LL650 grade cold-rolled ribbed steel and developed a special product. Its successful development has ended the history of our country’s long-standing cold-rolled ribbed bar base material. As a key popularization and application of new technologies by the Ministry of Construction in 1994, 1995 and the Ninth Five-Year Plan period, cold-rolled ribbed steel bars have been widely used in the construction industry. At present, China’s annual production capacity reaches 1.66 million tons. However, for a long time, the corresponding special base metal has not been developed and has been replaced by plain carbon steel bars such as Q215 and Q235. Finished products often do not meet the national standard or can not meet user requirements on tensile strength and elongation. Tianjin Tiangang Group Co., Ltd. for cold-rolled ribbed steel on the base metal