The seamless tube is a long strip of steel with a hollow section and no seams around it.
1, seamless steel pipe according to different production methods can be divided into hot rolling pipe, cold rolling pipe, cold pull pipe, squeeze Guandeng.
2, according to the shape of the classification of round tubes, shaped tubes. In addition to the square tube and rectangular tube, there are elliptical tubes, semi-circular tubes, triangular tubes, hexagonal tubes, convex tubes, and Guandeng tubes.
3, according to the different materials, it is divided into ordinary carbon structure tube, low alloy structure tube, high-quality carbon structure tube, alloy structure tube, and Guandeng.
4, according to special uses, there are boiler tubes, Geological pipes, oil pipes and so on.