【Ten Years of Rapid Development in Chemical Equipment】2560-2025: Filling the Gaps! “The \"high-pressure pure hydrogen pipeline steel pipe for hydrogen transport\" has been developed!

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Give praise and encouragement to the achievements made in China’s chemical engineering technology and equipment; your participation in discussions is the greatest encouragement. **********************【Ten Years of Great Development in Chemical Engineering Equipment】Ongoing updates and summaries available – feel free to join the discussions: https://bbs.hcbbs.com/thread-3576046-1-1.html ***************** Fill in the gaps! “The \"high-pressure pure hydrogen pipeline steel pipe for hydrogen transport\" has been developed! Recently, Baoshishun Company completed the trial production of straight-seam submerged arc welded pipes with dimensions of D610×12.7/14.3 mm, made from X52MH/X60MH hydrogen-conducting steel grades, for pure hydrogen transportation. This development makes the company one of those in China that offers the widest range of steel grades, the most diverse specifications, and the most complete product portfolio for hydrogen-conducting pipes, marking new progress by the company in the field of new energy pipelines. “\"Hydrogen embrittlement of pipeline materials\" has always been a challenge in the construction of high-pressure pure hydrogen pipelines. In the absence of current standards in China, the project research team at Baoshi Shun Company took the initiative to explore the factors that hinder the development of hydrogen pipelines and hydrogen energy utilization in the country. By making full use of the company’s overall R&D and manufacturing capabilities, and by collaborating with hydrogen energy users, steel manufacturers, universities, research institutions, and pipeline design firms, they worked tirelessly to address these issues. Through repeated adjustments to the steelmaking process, continuous improvements to the pipe manufacturing process, and evaluations of the hydrogen compatibility of the resulting pipes, they were finally able to develop a series of hydrogen transport pipeline pipes with ultra-high purity and ultra-fine grain structure, in the specifications X52MH D406×10.8mm/D457×8.8mm and X60MH D813×14.3mm. To successfully complete this trial production task, Baoshi Shun Company communicated repeatedly with the Steel Pipe Research Institute, developed multiple process plans, and drew on past successful experiences in the production of hydrogen-infused pipelines to formulate a detailed trial production plan aimed at reducing the factors related to hydrogen embrittlement that could arise during pipe manufacturing. During the trial production phase, experienced personnel were assigned to participate in both the testing and manufacturing processes. An optimized process scheme was developed, featuring low hardness and high toughness, as well as stable weld properties; all the mechanical property requirements for the 8 steel pipes produced in this trial were met. Through these batch trials of steel pipes, Baoshishun Company has continued to refine its core manufacturing technologies for pipes used in long-distance pure hydrogen pipelines, thereby filling the gap in domestic hydrogen transport products and providing the necessary equipment support for large-scale, low-cost long-distance transportation of pure hydrogen in China in the future.