KS SD600S. D10-D41 specification steel bar and production method

The invention discloses a KS SD600S. D10-D41 specification steel bar and a production method. The steel bar is composed of chemical ingredients including, in percentage by mass, 0.28-0.32% of C, larger than 0.20% of Cu, 0.31-0.41% of Cr, less than 0.30% of Si, 1.15-1.45% of Mn, 0.055-0.121% of V, less than 0.040% of P, less than 0.040% of S and the balance iron elements and a trace of inclusions.The production method of the steel bar comprises the processes of converter smelting, continuous casting, rolling and cooling; and in the cooling process, air cooling is performed after rolling, and no forced cooling measures are taken. The production method is successfully applied to production of the SD600S SK steel bar, and the product quality can meet the quality requirements of the SK KS D 3504:2016 bar steel for reinforced concrete. 本发明公开了种韩标SD600S.D10～D41规格钢筋及生产方法，所述钢筋化学成分组成及其质量百分含量为：C：0.28～0.32%、Cu＞0.20%、Cr：0.31～0.41%、Si＜0.30%、Mn：1.15～1.45%、V：0.055～0.121%、P＜0.040%、S＜0.040%，余量为铁元素和微量的夹杂物；所述钢筋生产方法包括转炉冶炼、连铸、轧制和冷却