SUH309 heat-resistant steel is an austenitic series heat-resistant steel with excellent corrosion resistance and oxidation resistance, and its standard meets the Japanese JIS standard. This material exhibits good high-temperature strength below 1100, so it is widely used in heat treatment equipment components and furnace components. In China, SUH309 is graded 2Cr23Ni13 and in the United States it is labeled ASTM AISI 309 UNS S30900.
The chemical composition of SUH309 heat-resistant steel is very stable, with a carbon content of 020, silicon content 100, manganese content 200, phosphorus content 0040, sulfur content 0030。The chromium content is in the range of 2200~24.00, while the nickel content is 1200~15.00. The chemical composition of this material guarantees excellent corrosion and oxidation resistance, allowing it to maintain stable performance at high temperatures.
SUH309 heat-resistant steel plays an important role in heat treatment equipment. Due to its excellent corrosion resistance and oxidation resistance, it can effectively resist oxidation and corrosion in high-temperature environments, thereby prolonging the service life of the equipment. In addition, the high-temperature strength of SUH309 heat-resistant steel also makes it an ideal material for the manufacture of furnace components. These components need to be stable at high temperatures, and SUH309 heat-resistant steel is able to meet this requirement.
In China and the United States, SUH309 heat-resistant steel has corresponding standard grades. This allows the two countries to maintain consistency in the manufacture and use of this material and to ensure the quality and performance of the product. At the same time, the application of SUH309 heat-resistant steel has also been widely promoted, not only in the industrial field, but also in aerospace, nuclear energy and other fields.
In conclusion, SUH309 heat-resistant steel is an austenitic series heat-resistant steel with excellent corrosion resistance and oxidation resistance, and its standard meets the Japanese JIS standard. It is suitable for heat treatment equipment components and furnace components, and has corresponding standard grades in China and the United States. This material has a wide range of applications, not only in the industrial field, but also in aerospace, nuclear energy and other fields.