Application and classification of heat resistant steel

Alloy steel with high strength and good chemical stability at high temperature. It includes two types of anti oxidation steel (or high temperature resistant steel) and hot steel. Anti oxidation steel generally requires good chemical stability, but the load is low. High temperature strength and the corresponding oxidation resistance of heat and strong steel are required. Heat resistant steel is often used in the manufacture of boiler, steam turbine, power machinery, industrial furnace and aviation, petrochemical and other industrial sectors in the work of the high temperature parts. In addition to the requirements of high temperature strength and high temperature oxidation corrosion, according to the use of different also requires sufficient toughness, good workability and welding, as well as a certain organizational stability. In addition, they also developed some new low chromium nickel oxidation.

Heat resistant steel

Heat resistant steel can be divided into two types, such as oxidation resistant steel and heat resistant steel. Oxidation resistant steel is also referred to as steel. Hot strong steel is a steel which has excellent oxidation resistance and high temperature strength at high temperature.

Heat resistant steel according to the normalized structure can be divided into austenitic heat-resistant steel, martensitic steel, ferritic heat-resistant steel and heat-resistant steel etc..

Used in heat resistant steel is often used in the manufacture of boiler, steam turbine, power machinery, industrial furnace and aviation, petrochemical and other industrial sectors in the work of the high temperature parts. In addition to the requirements of high temperature strength and high temperature oxidation corrosion, according to the use of different also requires sufficient toughness, good workability and welding, as well as a certain organizational stability. Since 1952, China has produced heat resistant steel. After developed some new low alloy heat resistant steel, so that the pearlite heat resistant steel working temperature increased to 600~620 DEG C; in addition, the development of some new low chromium nickel oxidation.

Heat resistant steel and stainless acid resistant steel cross each other in the use of a number of stainless steel and heat resistant steel characteristics, both available as stainless acid resistant steel, also can be used as heat resistant steel.