高强度高韧性L485M管线钢低成本优化实践  

Low Cost Optimization Practice of High Strength andHigh Toughness L485M Pipeline Steel

作　　者：王小双 孙宪进 许鹏 吴旭明 赵乾 诸建阳 Wang Xiaoshuang;Sun Xianjin;Xu Peng;Wu Xuming;Zhao Qian;Zhu Jianyang(Jiangyin Xingcheng Special Steel Co.,Ltd.)

机构地区：[1]江阴兴澄特种钢铁有限公司

出　　处：《宽厚板》2022年第2期21-24,共4页Wide and Heavy Plate

摘　　要：针对兴澄特钢3500 mm炉卷轧机生产线的装备特点,采用提高Mn的质量分数、去除Mo和Cr的低成本经济型C-Mn-Nb-Ti成分设计以及控轧控冷工艺。通过对加热、再结晶区压下率、终轧温度、未再结晶区累计压下率等变化规律的研究,生产出组织均匀、性能稳定的低成本高强度高韧性L485M管线用钢。According to the equipment characteristics of 3500 mm Steckel mill production line in Xingcheng Special Steel,the low cost,economical type C-Mn-Nb-Ti composition design by increasing the mass fraction of Mn,removing Mo and Cr and controlled rolling and controlled cooling process are applied.On the basis of the study on the changing law of reheating,reduction rate in recrystallization zone,finish rolling temperature,accumulated reduction in unrecrystallized zone,low cost,high strength and high toughness L485M pipeline steel with homogeneous microstructure and stable mechanical properties is produced.

关 键 词：炉卷轧机 管线钢 低成本成分设计 

分 类 号：TG142.1[一般工业技术—材料科学与工程] TE973[金属学及工艺—金属材料] TG335[金属学及工艺—金属学]