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Welded steel pipe , also known as welded pipe, steel sheet or strip steel pipe after forming welded curl ,
usually length 6 m .
Welded steel pipe production process is simple, high production efficiency ,
variety specifications, less investment in equipment ,
but the general strength of less than seamless steel tubes.
Smaller diameter pipe straight seam welded, large diameter spiral welded pipe for the multi-use ; press the pipe ends and shape into a circular pipe shaped (square , rectangular , etc.) pipe ; by the use of different materials and fluids into mine transporting welded steel pipe , low pressure fluid galvanized welded steel pipe , welded steel pipe and other belt conveyor idlers .
According to the existing GB of standard size table , sorted by diameter * thickness of small to large .
Pipe commonly used material for : Q235A, Q235C
Welded steel pipe blank is used in steel or steel, because of its different welding process is divided into the furnace pipe , welding ( electric resistance welded ) pipes and automatic arc welded pipe .
Because of the different forms of welding pipe is divided into two and spiral welded pipe .
Its end shape is divided into circular welded and shaped (square , flat , etc.) pipe
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