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Steel tube classification
Jan 17, 2017

Steel production methods can be divided into two broad categories: seamless and welded steel pipes, pipe joints straight seam steel pipe for short.

1. seamless steel tube production method can be divided into: hot-rolled seamless pipes, cold drawn pipes, precision steel pipes, thermal expansion tubes, cold spinning tube and squeezing the tube.

Seamless steel pipe made of high quality carbon steel or alloy steel, hot-rolled, cold-rolled (drawn) of the points.

2. welded steel pipes due to the welding process is divided into different stove pipe, welding (resistance welding) pipe and automatic electric arc welding, because of their different form of welding is divided into straight seam welded pipe and spiral welded pipe two end due to its shape and consists of a circular pipe and shaped (square, flat) pipe.

Welded pipe is rolled into a tubular steel butt or spiral seam welded together, manufacturing methods, can be divided into low-voltage transmission fluid used welding pipe, spiral seam welded steel pipe, direct roll of welded pipe, welded pipe. Seamless steel tubes for liquid pressure pipes and gas pipes for a wide variety of industries. Welded pipe can be used for aqueducts, gas pipes, heating pipes, electrical pipes and so on.

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