Manganese-molybdenum and manganese-molybdenum-nickel alloy steel plates for boilers and pressure vessels

This standard specifies the technical requirements for thick plates made of manganese-molybdenum and manganese-molybdenum-nickel alloy steels intended for use in boilers and pressure vessels. It covers aspects such as chemical composition, mechanical properties, manufacturing processes, and inspection methods. The document provides guidelines for the selection, production, and testing of these materials to ensure their suitability for applications under high pressure and temperature conditions. It also includes requirements for marking, packaging, and documentation to facilitate proper identification and handling during transportation and storage. The standard aims to ensure consistency and reliability in the quality of the materials used in critical pressure-containing equipment.