"GB/T 44148.2-2024 Steel forgings, rolled or forged bars for pressure equipment, Part 2: Low-alloy and alloy (molybdenum, chromium and chromium-molybdenum) steels with specified high-temperature performance" The national standard specifies in detail the technical requirements for low-alloy and alloy steel forgings, rolled or forged bars for pressure equipment, including order content, size, shape, weight, technical requirements, test methods, inspection rules, Encasement, marking and mass certificate. Applicable to round and square steels (bars) with an effective cross-sectional thickness of not more than 500mm and forgings with a single weight of not more than 10t. Non-alloy steels and Miscellaneous alloy steels can also be implemented by reference. The standard will be implemented on January 1, 2025 and will provide standardized technical specifications for pressure equipment materials used in high temperature environments.