JIS G3463 Carbon Steel Pipe 16mm Seamless Q345B Customized

Q345 welded pipe is used to transport low pressure fluid. Generally welded pipes are made of Q195A, Q215A, and Q235A steel. It can also be made of other mild steel that is easy to weld. Steel pipes need to be subjected to water pressure, bending, flattening and other experiments, and there are certain requirements for surface quality. Usually the delivery length is 4-10m, and fixed-length (or double-length) delivery is often required. The specifications of welded pipes are expressed by the nominal diameter (mm or inches). The nominal diameter is different from the actual. Welded pipes are divided into two types: ordinary steel pipes and thickened steel pipes according to the specified wall thickness. The steel pipes are divided into two types with thread and without thread according to the tube end form.

Welded thin-walled pipe: mainly used to make furniture, toys, lamps, etc. In recent years, thin-walled tubes made of stainless steel belts are widely used, such as high-end furniture, decorations, and fences.Spiral welded pipe: It is made by rolling low-carbon carbon structural steel or low-alloy structural steel strip into a tube blank at a certain spiral angle (called forming angle), and then welding the tube seam together. It can be made with a narrower Strip steel produces large diameter steel pipes. Spiral welded pipes are mainly used for oil and natural gas pipelines, and their specifications are expressed by outer diameter * wall thickness. Spiral welded pipes can be welded on one side and on both sides. The welded pipe shall be guaranteed to meet the requirements in terms of hydraulic test, tensile strength and cold bending performance of the weld.