超大厚度Q345R(R-HIC)钢板的研制开发  

Research and Development of Extra-heavy Q345R(R-HIC)Steel Plate

作　　者：吴立松 李样兵 霍圆圆 Wu Lisong;Li Yangbing;Huo Yuanyuan(HBIS Group Wusteel Company)

机构地区：[1]河钢集团舞钢公司

出　　处：《宽厚板》2024年第2期14-17,共4页Wide and Heavy Plate

摘　　要：根据压力容器项目用厚壁纯净钢技术要求,结合舞钢4200 mm+4300 mm双机架宽厚板轧机和热处理生产线的装备特点,通过改进成分设计、优化轧制和热处理工艺,成功开发出厚度达201 mm的高技术要求、超大厚度Q345R(R-HIC)钢板。对所研制钢板进行力学、理化性能检验,结果表明:舞钢开发的201 mm厚Q345R(R-HIC)钢板金相组织为典型的铁素体+珠光体机械混合组织,具有良好的综合力学性能以及HIC和SSCC性能,非常适合用来制造加氢精制装置循环氢脱硫塔、冷高压分离器、循环氢压缩机入口分液罐及天然气脱硫等装置。Based on the technical requirements of thick wall clean steel for pressure vessel project as well as the equipment features of the 4200 mm+4300 mm twin stand wide and heavy plate mill and heat treatment line in Wusteel,extra-heavy Q345R(R-HIC)steel plate with thickness up to 201 mm and high technical requirements are successfully developed by improving chemical composition design,optimizing rolling and heat treatment process.The mechanical,physical and chemical composition testing is carried on the as-developed steel plate.The results show that the microstructure of the 201 mm thickness Q345R(R-HIC)steel plate developed by Wusteel is of typical mechanical mixed structure including ferrite and pearlite with good comprehensive mechanical properties,HIC and SSCC properties,which is applicable for manufacturing various devices such as circulating hydrogen desulfurization towers of hydrogenation refining unit,cold high-pressure separator,inlet separation tanks of circulating hydrogen compressor and natural gas desulfurization unit.

关 键 词：大厚度 钢板 组织 性能 

分 类 号：TG142.1[一般工业技术—材料科学与工程] TG335[金属学及工艺—金属材料] TG156[金属学及工艺—金属学]