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What is the Difference between ERW and CDW Pipes?
Electric resistance welded pipes (ERW steel pipe) are longitudinally welded from metal after moving it afterward. CDW pipes are produced by expelling the metal to the required length; Hence ERW pipes ...
The Packaging Method and Main Parameters of Tubing and Casing
After the tubing, casing pipe and line pipe are produced, the surface is usually sprayed with anti-corrosion paint (Varnish, coating), and the outer surface of the pipe is sprayed with a striking mark...
Quality Assessment Process of ERW Steel Pipe
The details of ERW pipe evaluation process:
1. Non-destructive testing Rotate the detection arm of the inspection station into the straight seam welded pipe production line, observe the position of t...
The Development History of Seamless Steel Pipe
The production of seamless steel pipes has a history of nearly 100 years.
The use of steel pipes was started by a Scottish inventor in 1815 connecting the tubes to convey gas for lights. In 1836, the...
Ultrasonic Inspection Operation Scheme of ERW Welded Pipe
ERW welded pipe is made by using the skin effect and proximity effect of high-frequency current to quickly heat the edge of the pipe blank to the welding temperature and then squeeze and weld it. Comp...
Can the Seamless Steel Pipe be Used after Bending?
Seamless steel pipe is an important type of steel pipe in production and life. It is an important steel that is relatively strong and durable. Seamless steel pipes will also encounter bending deformat...
