Development status and trend of pipeline steel for long-distance natural gas transportation in China
With the large-scale construction of long-distance natural gas pipelines in recent decades,the production technology of high-grade pipeline steels and steel pipes in China has undergone rapid development and now has reached the top level in the world.The development of long-distance natural gas pipelines still trends towards high strength grade,large diameter,high transportation pressure,large thickness,and low-temperature service,etc.,which proposes higher requirements for the properties of high-grade pipeline steels,especially for anti-large deformation and low-temperature pipeline steels.This paper reviews the development of high-grade pipeline steel,anti-large deformation pipeline steel and low-temperature pipeline steel from the point of view of the relationship between microalloying design,microstructure,rolling process and mechanical properties.The current status and development trends of high-grade pipeline steel for long-distance natural gas pipelines are also discussed,considering the current issues encountered in field constructions.
high grade pipeline steelanti large deformation pipeline steellow temperature pipeline steel
NETL
NSTL
万方数据
