Steel plates for pressure vessels for intermediate temperature service

This document establishes the technical specifications for steel plate materials specifically designed for the fabrication of pressure vessels. It defines the chemical composition limits, mechanical property requirements, and dimensions necessary to ensure the structural integrity and safety of equipment operating under pressure. The standard outlines the methods for testing tensile strength, yield strength, elongation, and impact toughness at designated temperatures to verify material suitability for various operating conditions. It also specifies procedures for surface quality inspection, including allowable limits for defects, and mandates specific marking and labeling requirements to facilitate traceability throughout the supply chain. Furthermore, the document provides guidelines for heat treatment processes and delivery conditions tailored to different grades of steel. These technical criteria are intended to support manufacturers and users in selecting appropriate materials that can withstand internal and external pressures while maintaining safety and reliability. Compliance with these technical parameters helps ensure that pressure vessel components meet consistent quality benchmarks across industrial applications.