Q345B Seamless Welded Pipe

High-frequency Welded PipeThe advantage of this processing technology lies in the subsequent heat treatment after welding, which eliminates residual stress in the weld and heat-affected zone, refines the grain structure, reduces the heat-affected zone of the weld, and accelerates heating speed, thereby significantly improving welding speed and weld quality. Moreover, it can use unpickled, shot-blasted, and trimmed steel strips as raw materials, and is capable of welding alloy steel, high-alloy steel, and non-ferrous metal pipes. This greatly reduces the unit power consumption, and a single welding set can produce various high-frequency welded pipes.

However, for high-frequency welding tube production lines, the larger the diameter, the more it is limited by the weight and thickness of the steel strip coil, and the storage equipment is restricted by the spiral coupling. Additionally, high-frequency welding tube production lines have a higher line speed, while submerged arc welding tube production lines typically operate at 3m/min, which does not match. Therefore, high-frequency welding tube production lines need to fully utilize and expand their own advantages in order to enhance product quality and develop new products.