Introduction to welded pipe fittings

One of the butt welded pipe fittings is a pipe fitting made of welded pipe. For the pipe fitting manufacturer, the forming process using the welded pipe is basically the same as that of the seamless pipe, and the forming process of the welded pipe fitting does not include the welding process; the other is The welding process required for the pipe fittings to complete the pipe forming is one of the flanged pipe fittings. It is widely used and promoted in different fields and industries. The applicable range is different in use and the environment to be used is different. , need to use according to certain conditions. The butt weld elbow is welded by two steel plates. Generally, the large-diameter elbows are all such processes. Generally, the calibers above 600 are basically butt weld elbows.

Production standards: national standard, American standard, Japanese standard, British standard, German standard, and so on.

Material specifications: stainless steel, carbon steel, low alloy steel, alloy steel, etc.

Applicable medium: gas, liquid, steam.

Connection method: Butt welding (welding) type.

The heat treatment requirements vary in different pipe product standards. Not all deformed fittings are heat treated. Wall thickness 2-55, transportation mode cars, trains, ships. The packaging method is bundled and painted to break. Weight weighs and theoretical weight. The purpose of the heat treatment is to eliminate the work hardening, residual stress, metal deformation defects and the like which are generated during the forming process, so that the metal structure and properties of the formed pipe are changed, and the state before the deformation process is restored or the performance is improved and improved.