Now due to the development of science and technology, the ordinary quenching technology of cold drawn seamless tubing has been upgraded to high-frequency quenching technology. At present, high-frequency quenching technology has been widely used.

In the whole process of welding production, 35crmo welded pipe can easily show many situations such as missing welding and misalignment. But in this case, it is more difficult to grasp the trachoma at the butt weld of the 35crmo welded pipe.

The quality of the erw steel pipe in the production determines its quality in use.In the production process of erw steel pipe, each processing is carried out at high temperature, so the heating operation is a very important process to determine the quality of the product.

The temperature specified in the quenching process of black steel seamless pipe should not be too high. Quenching at an excessively high temperature will cause various damages. In most cases, cracks will occur in the black steel seamless pipe. Therefore, black steel has no The quenching temperature of the seam tube should not be too high.

Seamless steel pipes are widely used today. The key is because of its heat resistance and corrosion resistance. The application temperature of seamless steel pipes is 190~860 ° C. However, in the specific application process, the application temperature of seamless steel pipes It can't reach as high as 860 ℃. Let's discuss what temperature the seamless steel pipe is suitable for practically.

Steel used in the manufacture of engineering structures that bear loads, also known as building structural steel.They are often used in ships, vehicles, containers, etc. In engineering structures such as lifting and transportation machinery, it is used to manufacture bridges, steel columns, steel beams, trusses, etc. in construction projects.