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Classification of steel pipes by production method
Oct 28, 2016

Steel production methods can be divided into two categories: seamless steel pipe and a seam steel pipe, a seam steel pipe referred to as straight seam steel pipe.

1. Seamless steel pipe production methods can be divided into: hot-rolled seamless pipe, cold drawn pipe, precision steel pipe, thermal expansion pipe, cold spinning pipe and extrusion pipe.

Seamless steel with high-quality carbon steel or alloy steel, hot-rolled, cold-rolled (pull) of the points.

2. Welded steel pipe because of its different welding process is divided into furnace pipe, welding (resistance welding) and automatic arc welding pipe, because of its different forms of welding are divided into two types of longitudinal welded pipe and spiral welded pipe, the shape of its end points For the round pipe and shaped (square, flat, etc.) welded pipe.

Welded steel pipe is rolled from the steel plate to the seam or spiral seam welded together, in the manufacturing method, is divided into low-pressure fluid delivery with welded steel pipe, spiral seam welded steel pipe, direct welded steel pipe, welded pipe. Seamless steel pipe can be used for a variety of industries such as liquid pressure pipelines and gas pipelines. Welding pipes can be used for water pipes, gas pipes, heating pipes, electrical pipes.