Characteristics and Classification of Heat-Resistant Steel Castings

The stable performance of heat-resistant steel castings in high-temperature environments is mainly due to their unique chemical composition and heat treatment process. These castings typically contain alloying elements such as chromium, nickel, and molybdenum, which enhance the steel's oxidation resistance and resistance to hot corrosion. Depending on the operating temperature and performance requirements, heat-resistant steel castings can be classified into several types, such as oxidation-resistant steel (used in applications below 900℃) and heat-resistant steel (capable of withstanding certain stresses at high temperatures).