X120级超高强度管线钢生产工艺研究现状

特殊钢 ›› 2009, Vol. 30 ›› Issue (5): 25-27.

X120级超高强度管线钢生产工艺研究现状

赵英利^1,2，时捷² ，包耀宗²，谢刚¹

1. 昆明理工大学材料与冶金工程学院，昆明 650093;
2. 钢铁研究总院结构材料研究所，北京 100081；

收稿日期:2009-04-13 出版日期:2009-10-01 发布日期:2022-11-21
作者简介:赵英利(1981-)，男，博士生，微合金化及控轧控冷研究。

Recent Research Status of Production Process for Ultra-High-Strength Pipeline Steel X120

Zhao Yingli^1,2 , Shi Jie² , Bao Yaozong² , Xie Gang¹

1. School of Material and Metallurgy Engineering,Kunming University of Science and Technology,Kunming 650093;
2. Institute for Structural Materials,Central Iron and Steel Research Institute,Beijing 100081；

Received:2009-04-13 Published:2009-10-01 Online:2022-11-21

摘要/Abstract

摘要： X120管线钢的碳含量一般为0.05%,(Cu+Ni+Cr+Mo)≤2%,并加入微合金化元素V、Nb、Ti、B。通过控轧和强控冷工艺,该钢具有高强度、高韧性和良好的焊接性。介绍了生产X120管线钢的在线热处理工艺装置JFE-HOP,间断直接淬火(IDQ),直接淬火DQ-T工艺和淬火-配分(Q&P)工艺技术。讨论了其存在问题和可能的发展方向。

关键词: X120, 管线钢, 控轧控冷

Abstract: Generally speaking,the carbon content in X120 pipeline steel is 0.05% ,and (Cu+Ni+Cr+Mo)content in steel≤2% with adding microalloying elements V,Nb,Ti,B. The steel has high strength,high toughness and nice weldability by control rolling and heavy accelerated cooling process.The in-line heat treatment process device JFE-HOP, the interupted direct quenching(IDQ)process,the direct quenching DQ-T process and the quenching partitioning (Q & P)technology for production of pipeline steel X120 are presented,and the possible existed problem and future development are discussed.

Key words: X120, Pipeline Steel, Control Rolling and Control Cooling

赵英利, 时捷, 包耀宗, 谢刚. X120级超高强度管线钢生产工艺研究现状[J]. 特殊钢, 2009, 30(5): 25-27.

Zhao Yingli , Shi Jie , Bao Yaozong , Xie Gang. Recent Research Status of Production Process for Ultra-High-Strength Pipeline Steel X120[J]. Special Steel, 2009, 30(5): 25-27.

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