Development and production of 15.3mm thick low-temperature resistant X80M pipeline steel for the China-Russian Eastern Natural Gas PipeLine
Based on the development and mass production of X80 grade hot-rolled coil steel for natural gas pipelines between China and Russia,this paper introduces the composition process design,mechanical properties,low-tem-perature toughness,and microstructure of 15.3 mm specification low-temperature resistant X80M hot-rolled coil steel.The results show that through reasonable composition design and stable production process control,the 15.3 mm thick hot-rolled coil plate developed and produced by Tangshan Iron and Steel Company for the China Russia East Line natural gas pipeline project has stable performance,fine and uniform structure,and good low-temperature toughness,meeting the requirements of pipeline engineering standards and ensuring the safe operation of natural gas pipelines in this low-temperature area.
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