Weld cladding was the method selected in this study to temporarily extend the service life of welded pipes. Instead of replacing the pipes with new ones, the cost could be significantly reduced if the lifetime could be further extended. During the heating condition, the ash deposition on the welded steel pipes gradually reduces the thickness of the pipes, thus, reducing the lifetime. In the open air environment, the steel selected for road and bridge paving must have high corrosion resistance and wear resistance, otherwise it will be damaged after a period of use and it will easily lead to accidents.The in-service life of ASTM A36 welded steel pipes in power plants is often shortened by ash corrosion. Second, alloy steel plate has good corrosion and wear resistance. First, ASTM A36 carbon steel material, alloy steel plate has higher strength, stronger bearing capacity, less breakage when bearing large objects, and longer service life. Compared with other steel plates, alloy steel plates have outstanding performance. ASTM A36 carbon steel material, wear-resistant steel plate can be used normally within 500 ℃.Ĭompared with carbon steel, alloy steel plate is a steel plate with other alloy elements added to the material, and the material performance is more excellent. The carbide in the metallographic structure is fibrous, and the fiber direction is perpendicular to the surface alloy carbide It has strong stability at high temperature, maintains high hardness, and also has very good anti-oxidation performance. The alloy wear-resistant layer of the wear-resistant steel plate is mainly made of chromium alloy, and other alloy components such as manganese, molybdenum, niobium, and nickel are also added. Our company's ASTM A36 carbon steel material power boilers, heating furnaces of double bars, double high lines and medium and thick plates all adopt heat storage technology, which can fully use blast furnace gas the ladle baking, Maerz active lime kiln and medium and thick plate heat treatment furnace all burn converter gas, which can improve the ASTM A36 carbon steel material utilization rate of secondary energy and realize negative energy steelmaking in steelmaking process.
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