Recently, the first batch of 1930mm ultra-wide section hydrogen pipeline steel L245M customized by Qianben Steel has successfully rolled off the production line, which will be used in the national hydrogen pipeline key projects. This product will provide effective assistance to solve the “neck” link of hydrogen transportation in the hydrogen energy industry chain and further improve the domestic hydrogen energy transportation system.

How to efficiently and conveniently transport hydrogen is the bottleneck that restricts the development of hydrogen industry. Pure hydrogen pipeline transportation has irreplaceable economic advantages in large-scale and long-distance transportation, which can solve the problem of large-scale hydrogen use from the root, and is the development direction of high-efficiency hydrogen use in the future. Qiansteel implements the national strategic decision of carbon peak and carbon neutral, responds to the requirements of the “Three-year Action Program for the Development of Provincial Hydrogen Industry”, and actively carries out the research and development of hydrogen transportation materials, deeply buttresses the special needs of the project, and carries out the special research and development. In order to meet the customer's needs, Qiansteel's R&D team constructed simulated cast billets and organized trial rolling through all-round and whole-process feasibility analysis. By optimizing the composition design, adopting duplex smelting process and controlled rolling and cooling process, the company has ensured the precise control of strip size, plate shape, surface quality, temperature and other indexes, solved the problem that steel is prone to hydrogen embrittlement and fracture under hydrogen-rich environment, and achieved the success of one-time rolling of hydrogen pipeline steel with ultra-wide fracture, which is a good support for the material to ensure the safety of hydrogen pipeline transportation and improve its service life.