Heat-resistant steel has good heat resistance and oxidation resistance

Alloy steel with high strength and good chemical stability at high temperature. It includes two types of anti-oxidation steel (or high-temperature non-skinning steel) and heat-strength steel. Oxidation-resistant steel generally requires better chemical stability, but bears lower loads. Heat-strength steel requires higher high-temperature strength and corresponding oxidation resistance. Heat-resistant steel is often used in the manufacture of boilers, steam turbines, power machinery, industrial furnaces, and parts that work at high temperatures in industrial sectors such as aviation and petrochemicals. In addition to high temperature strength and high temperature oxidation corrosion resistance, these parts also require sufficient toughness, good machinability and weldability, and certain structural stability according to different uses. In addition, some new low-chromium-nickel oxidation-resistant steels have been developed.
Heat-resistant steel can be divided into austenitic heat-resistant steel, martensitic heat-resistant steel, ferritic heat-resistant steel and pearlitic heat-resistant steel according to its normalizing structure.