In the industrial field, steel pipe is a common and important material, among which 159 steel pipe has attracted much attention.1.159 Steel Pipe Material Characteristics-159 steel pipe is a steel pipe with excellent characteristics, usually made of high-quality carbon structural steel, with high str

First, the installation steps of plastic-coated composite spiral steel pipes used in water supply projects:1. When choosing a suitable pipeline, you must first ensure that the selected plastic-coated composite spiral steel pipe meets the requirements of relevant standards and has good corrosion resi

Large diameter straight seam steel pipe process flow and main equipmentProcess the two plate edges into the required form at one time. Steel plate edge milling machine: Mechanical processing of both sides of the plate used for pipe making, and making the parallelism of the two plate edges within the

1. Welding seam defects: Welding seam defects are serious and need to be compensated by manual mechanical grinding. The resulting grinding marks will cause the surface to be uneven and affect the appearance. Only pickling and passivating the welds also result in uneven surfaces.2. Scratches are diff