Antioxidant temperature is 600-700℃. Can be used as a high temperature and high pressure valve body and a burner. The temperature range of gas turbine compressor blades is 700-800℃. The temperature of the gas compressor blade is below 900℃. Chromium is used as a high temperature component of the boiler. Chromium has certain oxidation resistance and high temperature strength in the range of 600 to 700°C. Suitable for high-temperature areas such as turbine blades, nozzles, boiler burner valves, etc., the oxidation temperature is 700-800℃, the same as 1cr12 steel. The oxidation temperature is lower than 870℃. It can be used in boiler heating surface tubes, heating furnace components, heat exchangers, muffle furnaces, converters, nozzles, etc. It can resist high temperature corrosion and oxidation within the temperature range of 400 to 900°C. Suitable for pipe fittings with working temperatures below 850℃ and anti-oxidation temperatures below 980℃. Suitable for burner fire tubes, turbine blades and furnace bodies. The antioxidant temperature of the methane conversion device and the high-temperature separation device is as high as 1035℃ and is used to heat furnace components; the antioxidant temperature of the gas transmission system components with a working temperature above 950℃ shall not exceed the heat exchange pipes for chemical and oil refining and furnace pipe accessories, and the working temperature is below 600-750℃.

0cr17ni7al high-temperature pressure bearing parts, working temperature below 550℃.

Steels with austenite structure at room temperature are austenite steel. Austenitic steel has no magnetic structure and has good cold working properties. Its corrosion resistance is better than 430 steel and other martensite steels, and its heat resistance is better. For example, the reason for the formation of 1Cr18Ni9Ti: There are three basic phases in carbon steel, namely ferrite, austenite and cementite. After the alloying element is added to the steel, it can be dissolved in three phases to form alloy ferrite, alloy austenite and alloy cementite. Adding elements such as nickel, manganese, carbon, and nitrogen to the steel can reduce the temperature of A1 and A3, and move the s and e points in the iron-carbon phase diagram left and right. As for the demand for the British Coloss 825 bolts and bolts, Southeast Asian countries started late in their economies and their economic foundations were relatively weak, especially the development of the steel industry lagged behind. However, in recent years, with the deepening of economic globalization and the continuous adjustment of the division of labor in the global industrial chain, Southeast Asia's cheap human resources and other factors have attracted a large amount of investment, accelerating the industrialization process in the region. The rapid development of the construction industry, which mainly meets domestic demand and the manufacturing industry, which mainly meets foreign demand, has driven the continuous growth of steel demand. It is estimated that the ten ASEAN countries (the moon on the horse grassland, my mother's eyes..." At 19:10 on May 16, the sun was still stubbornly refused to go down the mountain. At the Yihai Energy Rice Gully located in Haixi Mongolian and Tibetan Autonomous Prefecture, Qinghai Province, there were loud and powerful singing sounds on the second floor of the employee activity center, which was deafening. As a result, the austenite zone expanded. When the content of Ni or Mn that is infinitely miscible with γ-Fe is large, the austenite zone can be expanded to room temperature. Therefore, steel still exists in the form of single-phase austenite at room temperature.

The chemical composition of steel is: C: 0.30-0.40%, Cr: 24-26%, Mn: 1.2%, Si: 1.3-1.5%, Ni: 7-9%, Mo: 0.3-0.4%, V: 0.3-0.5%, re: 0.2-0.3%, W: 0.2-0.3%, N: 0.2-0.3%, s≤0.04%, P≤0.04%; the residue is iron and inevitable impurities. Compared with the prior art, the steel type of the low nickel high temperature resistant steel material of the present invention is: 35Cr25Ni7SiMnMovren; compared with the prior art, the material has low nickel content, good overall high temperature resistance, long service life, good mechanical properties, and high yield of workpieces. It is suitable for various casting processes, does not require heat treatment, can be supplied in cast state, has a wide range of application and low production cost. Not in heaven. Commonly used tool wear-resistant materials include silicon carbide, boron nitride, alumina and cemented carbide. They are all high hardness, high melting point materials that can maintain sufficient hardness and wear resistance at higher temperatures. Silicon carbide (SIC) is an atomic crystal with a crystal structure similar to diamond.