High-Temperature Alloy Steel Valve Castings

C5 (ASTM A217 C5) heat-resistant alloy steel, with its outstanding high-temperature resistance and corrosion resistance, has become the core material selection for the manufacturing of high-temperature equipment in the petrochemical industry. In the application of cracking furnaces, it can withstand a continuous high temperature of 649℃. The furnace tube part is in long-term contact with hydrocarbon cracking media. The dense oxide film formed by the high chromium content can effectively resist the erosion of sulfides and carbides in the medium, prevent coking and corrosion perforation on the inner wall of the furnace tube, ensure the stable progress of the cracking reaction, and the continuous operation cycle of the equipment can be extended to more than 18 months. It far exceeds the 12-month cycle of ordinary heat-resistant steel. As a key equipment in the petrochemical industry, the gasifier operates under more severe conditions. It not only has to withstand high temperatures but al…