This standard specifies the fatigue test and assessment methods for the upper core plate of general railway freight cars. This standard applies to new flat upper center plates for railway general-purpose freight cars.
TB/T 3011-2001 history
2020TB/T 46-2020 Railway vehicle heart discs and wear discs
2001TB/T 3011-2001 Fatigue test and evaluation method of the upper center plate of railway general freight car