Recommendation: The difference between Baotou Seamless Steel Tube and Baotou Seamless Steel Tube The seamless steel tube is mainly achieved through tension reduction. The tension reducing process is a continuous rolling process in which a hollow base metal does not have a core rod. On the premise of guaranteeing the quality of the welding of the mother tube, the tension reducing process of the welded pipe is to heat the whole of the welded pipe to 950 degrees Celsius or more, and then to a variety of outer diameters and walls by a tension reducer (a total of 24 passes of the stretch reducer). The thick finished tube, the hot rolled steel tube produced by this process and the ordinary high-frequency welded pipe are essentially different. After heating in the heating furnace, the metallographic structure and mechanical properties of the weld and the parent metal can be completely consistent. The secondary tension reducer rolling and automatic control make the pipe's dimensional accuracy (especially the pipe roundness and wall thickness accuracy) better than the similar seamless pipe. Fluid tubes and boiler tubes produced in developed countries in the world have adopted a large number of welded tube seamless processes. With the development of society, the domestic hot-rolled welded tubes have gradually replaced the seamless tubes.
The difference between Baotou Seamless Steel Tube and Baotou Seamless Steel Tube can be seen from several aspects:
First of all, welded pipes are generally fixed-length, and they are generally 6 meters, 9 meters or 12 meters. The length of the seamless steel pipe is very small, because the factory price increase of the length is very large.
The second can be seen from the cross-section of the tube head. If there is rust, wipe it clean. If you look closely, you will find the welding area.
Third, if pickling, oh, it is most obvious.
The difference between the two types of steel pipe information source
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