炉卷轧机X70级管线钢组织与性能研究  

Microstructure and properties of X70 pipeline steel in Steckel mill

作　　者：王春祥[1] 

机构地区：[1]安阳钢铁股份有限公司,河南安阳455004

出　　处：《武汉科技大学学报》2009年第6期579-582,共4页Journal of Wuhan University of Science and Technology

摘　　要：采用低碳、低硫和微合金化成分设计,在1200-1220℃加热温度、790-830℃终轧温度、500-550℃终冷温度控制工艺下进行热轧处理,对3500 mm炉卷轧机生产的X70管线钢进行组织性能检验。结果表明,所生产的X70管线钢均满足西气东输二线X70级管线钢的技术要求。X70 pipeline steel has been successfully developed in 3 500 mm Steckel mill.The design is characterized by low-carbon,low-sulfur,microalloyed composition.The steel is heated at 1 200-1 220 ℃,and the finish rolling temperature and finish cooling temperature are 790-830 ℃ and 500-550 ℃,respectively.It is found that good mechanical performance and microstructure of steel plate can be obtained.

关 键 词：管线钢 微合金 热轧控制工艺 组织 力学性能 

分 类 号：TG335[金属学及工艺—金属压力加工]