High end chrome molybdenum steel is one of our "champion" products, occupying an absolute dominant position in the petrochemical industry and coal chemical industry steel field, with a high market share. Recently, BBN high end chrome molybdenum steel production has made significant progress. The large thickness 15CrMoR plate developed by the special process not only increases the qualification rate of 15CrMoR plate in the preliminary test by 17%, shortens the production period by 14 days, but also effectively reduces the heat treatment cost.
15CrMoR plate with large thickness is one of the representative varieties of BBN high end chromium molybdenum steel materials. 15CrMoR plate has high price, high technical content, large market demand, but high manufacturing cost.
BBN steel has set up a research team of "improving the quality and efficiency of large thickness 15CrMoR plate", carried out multiple rounds of scientific research and experimental research, deeply studied the evolution law of steel plate microstructure under different heat treatment systems, and analyzed the influence mechanism of different internal microstructure on low-temperature impact toughness of 15CrMoR plate; fully tapped the potential of equipment and realized the implementation of controlled rolling and controlled cooling process in rolling process. To explore the best process combination of controlled rolling and controlled cooling and heat treatment process, and develop the exclusive production process of high end chromium molybdenum steel plate, the research and technical personnel track the whole process implementation of on-site process to ensure that the process implementation achieves the expected goal.