2Cr21Ni12N heat-resistant steel is an alloy material with excellent heat resistance, which is widely used in various high-temperature environments. The standard is GB T 1221-1992, and the grade is 2Cr21Ni12N.
2Cr21Ni12N heat-resistant steel belongs to the Japanese JIS standard heat-resistant steel, and SUH37 corresponds to China GB 2Cr21Ni12N. Its chemical composition includes elements such as carbon, silicon, manganese, phosphorus, sulfur, chromium, molybdenum, nickel, copper, and nitrogen. Among them, the carbon content is 015~0.25%, silicon content 100%, manganese content of 100~1.60%, phosphorus content 0040%, sulfur content 0030% with a chromium content of 2050~22.50%, molybdenum content of —, nickel content of 1000~12.00%, the copper content is —and the nitrogen content is 015~0.30%。
2Cr21Ni12N heat-resistant steel has excellent corrosion resistance and heat resistance, and can work stably for a long time in a high-temperature environment. Its good mechanical properties and processability also make it have a wide range of application prospects in the manufacturing process.
In terms of application, 2Cr21Ni12N heat-resistant steel is widely used in various high-temperature equipment, such as boilers, pressure vessels, petrochemical equipment, etc. Due to its excellent corrosion resistance and heat resistance, it can also be used in the manufacture of high-temperature equipment such as high-temperature stoves and heat exchangers.
In addition, 2Cr21Ni12N heat-resistant steel can also be processed and repaired through heat treatment, welding and other processes to meet the needs of different equipment and processes. At the same time, it also has good machinability and weldability, which can be easily used for cutting, drilling, welding and other operations.
In conclusion, 2Cr21Ni12N heat-resistant steel is an alloy material with excellent heat resistance and is widely used in various high-temperature environments. Its good mechanical properties and processability also make it have a wide range of application prospects in the manufacturing process.