To ensure the quality and performance of turbine diaphragms, various countries have established corresponding material standards and specifications. Internationally, widely used standards include those from the American Society of Mechanical Engineers (ASME), European standards (EN), and Chinese national standards (GB).
These standards specify the requirements for the chemical composition, mechanical properties, and heat treatment processes of diaphragm materials to ensure stable operation of the diaphragms under harsh environments of high temperature and high pressure.
Furthermore, these standards provide clear guidelines for the manufacturing, inspection, and acceptance of diaphragms.