This standard specifies the terms and definitions, ordering content, specifications, appearance, weight, technical requirements, test methods, inspection rules, packaging, marking and quality certificates of radiation-resistant and heat-resistant steel. This standard applies to hot-rolled and silver bars (hereinafter referred to as steel bars) with a diameter of not more than 150 mm for the nuclear industry. The grades and chemical compositions specified in this standard also apply to steel billets, steel billets and their products.
GB/T 38820-2020 history
2020GB/T 38820-2020 Irradiation-resistant and heat-resistant steels