The Difference Between the Straight Seam Welded Pipe and the General Welded Pipe and the Characteristics and Usage of the Spiral Pipe

Straight seam welded pipe is made of steel plate or steel strip after bending forming, and then through welding. Divided into the form of the weld seam welded pipe and spiral welded pipe by the welding forming method. According to the application, the straight seam weld pipe can be divided into general welded pipe, galvanized welded pipe, oxygen blowing metric welded pipe, welded pipe, wire casing, roller tube, deep well pump pipe, auto tube, transformer, electric welding thin wall pipe, welded pipe and spiral welded pipe.

General welded pipe is used to transfer low pressure liquid. It is made of Q195A, Q215A, Q235A steel and it can also be made of other mild steel. Steel pipe should have the text on pressure, bending, flattening and so on, and it has a certain request on the surface quality. Usually, the delivery length is 4 to 10m, often required scale (or foot) delivery of the goods. The specifications of the welded pipe always show with nominal diameter (mm or inches), and the nominal diameter is different from the actual. According to the regular thickness wall, the welded pipe has two kinds including ordinary steel pipe and thickening steel pipe, and distinguish by the end point, the steel pipe can be divided to pipe with thread and no-thread pipe.

No need for welding machine and wire resistance high frequency straight seam welded pipe set, also do not need to do across the ground, do not need to brush paint, eliminating the traditional fusion welding and other complex construction process. Simply connecting pipe and tube, straight tube joint thread round steel tube theory weight and junction box, pipe joint positioning after tight (wring) screw with specialized tools, and high frequency resistance seam welding junction box with a lock the mother can be set. Pipeline bends can be made to the requirements with pipe bender to the certain situation.