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See Chinese contents: GB/T 5310-2023 GB/T 5310-2023: Seamless steel tubes and pipes for high pressure boiler
This document stipulates the classification, code, order content, size, shape, weight, technical requirements, samples, test methods, inspection rules, packaging, marking and quality certificate of seamless steel tubes and pipes for high pressure boiler. This document applies to the manufacture of seamless steel tubes and pipes (hereinafter referred to as steel pipes) for boilers and pipelines of high pressure and above. It also applies to seamless steel tubes and pipes for other high-temperature and pressure-bearing equipment as a reference.
