DL/T 930-2018 in English

This document provides guidelines for the ultrasonic testing of forged rotor components used in steam turbines. It outlines the technical requirements, testing procedures, and evaluation criteria to ensure the integrity and reliability of these critical parts. The content covers the preparation of test pieces, selection of testing methods, calibration of equipment, and interpretation of test results. It is intended for use by professionals involved in the inspection and quality control of steam turbine rotors. The document is structured to facilitate application in industrial settings and supports the development of consistent and standardized testing practices. It includes detailed information on the parameters to be considered during testing, as well as recommendations for reporting and documentation of test outcomes.