JB/T 4010-2018 in English

This standard specifies the requirements, test methods, and inspection rules for the ultrasonic testing of steel retaining rings used in steam turbine generators. It covers the preparation of test pieces, the selection of testing equipment, the procedures for ultrasonic testing, and the evaluation of test results. The standard applies to the quality control and acceptance of steel retaining rings during the manufacturing process, ensuring that they meet the necessary technical requirements for safe and reliable operation. The content includes definitions, general requirements, testing procedures, and the classification and acceptance criteria for defects detected during the testing process. It provides guidance on the application of ultrasonic testing techniques to ensure the integrity and performance of the components under specified operating conditions.