Heat-resistant steel is a special steel suitable for high temperature environment. When choosing heat-resistant steel, the following aspects need to be considered:
01. Product structure
Heat-resistant steels can be classified according to their microstructure into austenitic heat-resistant steels, martensitic heat-resistant steels, ferritic heat-resistant steels, and duplex heat-resistant steels. Austenitic heat-resistant steels have good high-temperature strength and oxidation resistance, commonly used for furnace components; Martensitic heat-resistant steels have good creep resistance and high-temperature strength, commonly used for turbine blades; Ferritic heat-resistant steels have good oxidation resistance and high-temperature strength, commonly used for furnace components; Duplex heat-resistant steels have good high-temperature strength and fatigue resistance, commonly used for furnace components
02, how to choose products
When selecting heat-resistant steel, factors such as service temperature, oxidation resistance, high-temperature strength and fatigue resistance, and cost need to be considered. Select the appropriate heat-resistant steel according to the specific application scenario. For example, furnace components need to have good oxidation resistance and high-temperature strength, while steam turbine blades need to have good creep resistance and high-temperature strength.
03. Product advantages
Heat-resistant steel has the advantages of good high temperature strength, oxidation resistance, fatigue resistance and creep resistance, etc., can adapt to a variety of complex stress in high temperature environment. In addition, heat-resistant steel also has good machinability and weldability, can meet the requirements of various complex shapes of processing and manufacturing
04. Usage scenarios
Heat-resistant steel is mainly used in the manufacturing of high-temperature equipment and components in petroleum, chemical industry, electric power, metallurgy and other fields, such as furnace parts, steam turbine blades, heating furnace components, etc. In addition, it is also widely used in aerospace, automotive, energy and other fields.
Therefore, when choosing heat resistant steel, we need to consider the use temperature, oxidation resistance high temperature strength, fatigue resistance, cost and other factors, and choose the appropriate heat resistant steel to meet the requirements of use
