从化学成分设计、冶炼连铸工艺、热轧工艺等方面对海底管线管X56 PSL2进行了研究,并且在衡管进行了海底管线管X56 PSL2的工业试制,满足了油田用户对海底管线管X56 PSL2的需求。实践证明,衡管的工艺方案,满足和适应了油田用户的需要。海底管线管X56 PSL2的研制成功,为衡管生产低碳微合金化高强度管线提供了生产经验,并具有指导作用。 From the aspects of chemical composition design, smelting and continuous casting process and hot rolling process, the submarine line pipe X56 PSL2 was researched, and the submarine line pipe X56 PSL2 was piloted in Hengli to meet the requirements of oil field users for submarine line pipe X56 PSL2 The demand. Practice has proved that the balance of technology programs to meet and adapt to the needs of oil users. The successful development of the submarine pipeline pipe X56 PSL2 provided the production experience for the production of low carbon microalloyed high strength pipelines and instructed them.