Galvanized steel pipe has the dual advantages of strong corrosion resistance and low price, and its usage rate is getting higher and higher. However, in some cases, it is necessary to weld the galvanized pipe. How to ensure the quality of welding?

Stainless steel has good comprehensive performance and good appearance and surface characteristics, and is widely used in various industries. Similarly, stainless steel pipes are no exception.

Large-diameter straight seam steel pipe is a welded steel pipe whose weld seam is parallel to the longitudinal direction of the steel pipe. It is usually divided into metric electric welded steel pipe, electric welded thin-walled pipe, transformer cooling oil pipe and so on.

Steel pipes are divided into seamless pipes and welded pipes according to whether there are welds or not. A seamless pipe is a long strip of steel with a hollow section and no seams around it. Welded pipe is a steel pipe made of steel plate or strip steel after being crimped and welded.

Seamless steel pipes have hollow cross-sections and are widely used as pipes for transporting fluids, such as pipes for transporting oil, natural gas, gas, water and certain solid materials.

Seamless steel pipe is a round, square, or rectangular steel with a hollow section and no seams around it. Seamless steel pipes are made of steel ingots or solid tube blanks that are perforated into capillary tubes, and then made by hot rolling, cold rolling or cold drawing.