The method of seamless steel pipe to achieve high quality performance:
Seamless steel pipes are widely used in mechanical manufacturing, because the mechanical performance of this steel is very good. But because it is medium carbon steel, the quenching performance is not good, and it can be quenched to HRC42-46. If the surface hardness is required and the high-quality mechanical performance of the seamless steel pipe is desired, the method used is to carburize and quench the surface of the seamless steel pipe so that the required surface hardness can be obtained.
If the seamless steel pipe is used for carburizing, hard and brittle martensite will appear in the core after quenching, and the advantages of carburizing will be lost. At present, the carbon content of the materials using the carburizing process is not high, and the core strength can reach a high level of 0.30%, and it has never appeared in practical applications. The process of quenching and tempering + high frequency surface quenching can be used, but the wear resistance is slightly worse than that of carburizing.
As a carbon steel pipe manufacturer, Permanent Steel Manufacturing Co.,Ltd specializes in the production and supply of seamless steel pipes, welded steel pipes(ERW/SSAW/LSAW), stainless steel pipes, hollow sections, pipe fittings, etc., with more than ten years of production experience. (Fluid pipe/Boiler pipe/Fire pipe/Line pipe/Structural pipe)