This standard specifies the terms and definitions, basic requirements, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage, and quality commitments of precision stainless steel seamless pipes (hereinafter referred to as steel pipes) for high-speed train braking systems. This standard applies to steel pipes with an outer diameter of 6mm to 50mm and a wall thickness of 0.8mm to 4.0mm. The finished steel pipes are formed by cold processing and brightly heat treated in a protective atmosphere.
T/ZZB 2017-2017 history
2022T/ZZB 2017-2022 Precision seamless tube of stainless steel for braking system of high speed train
2020T/ZZB 2017-2020 Aluminum basecopper-clad laminates for printed circuits
2017T/ZZB 2017-2017 Precision seamless tube of stainless steel for braking system of high speed train