The physical properties of seamless steel pipes are very stable, so they can be widely used.

Introduce the identification methods of 6 kinds of hot-rolled large-diameter seamless steel pipes

There is stress in the steel pipe, no matter where it is, it will cause the steel pipe to crack during quenching. Generally, in the production process, after the heat treatment, a cooling process is required. If the cooling is too fast or incomplete, it will also cause cracks on the surface of the steel pipe.

During the welding of large-diameter thick-walled pipes, the workpiece and the solder melt to form a molten area, and the molten pool is cooled and solidified to form a connection between the materials.

According to different production methods, manufacturing methods can be divided into hot-rolled tubes, cold-rolled tubes, cold-drawn tubes, and extruded tubes.

Encapsulate high-density high-pressure polyethylene raw materials on the outer surface of seamless pipes, which have very high impact toughness and high-quality corrosion resistance, and can protect them from external factors during the entire process of transportation, installation and application. The destruction caused by the element.