Use And Production Process Of Welded LSAW Steel Pipes Q235B

The use of Welded LSAW Steel Pipes Q235B involves a very wide range of general-purpose seamless steel tubes, which are produced by ordinary or rolled products and are mainly used as pipes or structural parts for conveying fluids. Seamless steel pipes are supplied in three categories according to their use: according to chemical composition; supplied by mechanical properties; supplied by hydraulic test. Steel pipes supplied in accordance with chemical composition and mechanical properties, if used to withstand liquid pressure, are also subjected to hydrostatic testing. Special-purpose seamless pipes include geological seamless steel pipes and seamless pipes for petroleum. In many of the existing seamless steel pipe plants, the production and sales are mainly centered on cold drawn and hot rolled DIN17175 Seamless Steel Pipe, and the production processes of the two are different. Therefore, in the production process of these two seamless steel pipes, the production process of cold drawn seamless steel pipes is complicated. The seamless steel pipe is first subjected to continuous rolling on the problem of the tube blank, and the sizing test can be carried out after the continuous rolling. At this time, the surface of the tube blank is required to have no crack response before the next process can be carried out.

Then, after the response crack, the cutting is performed, and the length of the cutting is about one meter. After the cutting is completed, the annealing process is entered. When annealing, there is a key to pickling, so when pickling, workers should pay attention to their own safety issues. When pickling, pay attention to the blistering of the surface of the steel pipe. If the bubble starts too much, then the quality of the steel pipe is not up to the requirements. In contrast, hot rolling is much simpler, and it only needs to be heat-treated in hot rolling to be delivered, so the process is much simpler.