1国内高强度管线钢发展态势随着经济的发展,国内对油气资源的需求日益增长,长距离输送油气资源成为必须面对的现实问题.为了实现长距离、高效输送油气资源,长距离高压输送管线应运而生,这一现实需求促进了高强度管线钢的开发与应用.高强度管线钢是一个不断发展的概念,从X52发展到X80,目前X100、X120钢级 1 Development Trend of Domestic High-strength Pipeline Steel With the development of economy, the domestic demand for oil and gas resources is increasing day by day, and the long-distance transportation of oil and gas resources has become a real problem that must be faced.In order to realize the long-distance and efficient transportation of oil and gas resources, The pipeline came into being, and this realistic demand has promoted the development and application of high strength pipeline steel.High strength pipeline steel is a developing concept from X52 to X80, and the current X100 and X120 steel grades