N80级ERW石油套管用钢的组织转变及性能  

Microstructure Transformation and Properties of N80 Grade ERW Steel for Oil Casing

作　　者：张晓磊 刘妍 袁晓鸣[2] 刘恩泽 杨维宇 Zhang Xiao-lei;Liu Yan;Yuan Xiao-ming;Liu En-ze;Yang Wei-yu(Inner Mongolia Baotou Steel Rare Earth Steel Plate Co.,Ltd.,Baotou 014010,Inner Mongolia Autonomous Region,China;Technical Center of Inner Mongolia Baotou Steel Union Co.,Ltd.,Baotou 014010,Inner Mongolia Autonomous Region,China)

机构地区：[1]内蒙古包钢稀土钢板材有限责任公司,内蒙古包头014010 [2]内蒙古包钢钢联股份有限公司技术中心,内蒙古包头014010

出　　处：《包钢科技》2021年第4期50-53,共4页Science & Technology of Baotou Steel

摘　　要：采用C-Mn-Nb-Ti微合金化成分设计,低P、低S冶炼以及合理的控轧控冷工艺,充分发挥细晶强化和析出强化作用,研制出N80级石油套管用试验钢。测定了N80级ERW石油套管用钢的连续冷却转变曲线(CCT曲线),研究不同冷速对相变产物的影响。The N80 grade experimental steel for oil casing is developed with the microalloying composition design of C-Mn-Nb-Ti,smelting with low P and S as well as reasonable controlled rolling and cooling process so that the refined crystalline strengthening and precipitation strengthening are made full use of.Moreover,the continuous cooling transformation curve(CCT curve)of N80 grade ERW steel for oil casing is measured to study the effects of different cooling rates on products of phase change.

关 键 词：控轧控冷工艺 N80级ERW石油套管用钢 连续冷却转变曲线 

分 类 号：TG142.1[一般工业技术—材料科学与工程]