超低碳贝氏体钢HQ590DB厚板的开发  

Development of HQ590DB Heavy Plate of Super-low Carbon Bainite Steel

作　　者：张涛[1] 侯华兴[1] 马玉璞[2] 丛津功[2] 隋轶[2] 

机构地区：[1]鞍钢集团技术中心 [2]鞍钢集团新轧钢股份有限公司

出　　处：《鞍钢技术》2005年第2期27-30,共4页Angang Technology

摘　　要：通过两轮工业实验 ,采用转炉连铸、TMCP工艺流程 ,在鞍钢 43 0 0 mm宽厚板轧机上成功试制出最大厚度达 40 mm的超低碳贝氏体钢 HQ5 90 DB厚板 ,屈服强度大于 490 MPa、-2 0℃冲击功大于 1 90 J。简要介绍了该厚板的试制过程以及化学成分和工艺参数对钢的组织和性能的影响。Through two turns of industrial experiments, HQ590DB heavy plate of super-low carbon bainite steel with the maximum thickness of 40mm is successfully trial-produced in Angang’s 4300mm wide heavy plate mill by continuous casting in converter and TMCP technology process, the yield strength and impact power at -20℃ of which are over 490MPa and 190J respectively. This article simply introduces the trial production course and the influence of the chemical composition and the technological parameters on the structure and the performance of the steel.

关 键 词：超低碳贝氏体钢 开发 宽厚板轧机 组织和性能 工业实验 工艺流程 TMCP 最大厚度 屈服强度 工艺参数 化学成分 试制过程 冲击功 20℃ 

分 类 号：TG142[一般工业技术—材料科学与工程] TG333.71[金属学及工艺—金属材料]