首钢Q245R钢和Q345R钢热轧板卷的试制和生产

Development and Production of Steel Strips of Q245R and Q345R Hot-Rolled Coiled by Shougang

介绍了迁钢公司通过合理的化学成分设计和控轧控冷技术的应用，开发出锅炉和压力容器用Q245R钢和Q345R钢热轧板卷的情况，分析了批量生产的Q245R钢和Q345R钢的化学成分、力学性能和冶金质量。

The Q245R and Q345R steel strips used for boilers and pressure vessels have been developed successfully by means of reasonable elements design and controlled rolling and condoned cooling technology by Shougang Qian＇an Iron and Steel Co., Ltd.. The chemical composition, mechanical property and metallurgy quality of Q245R and Q345R volume-produced are analyzed in details.