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What is erw pipes?
ERW steel pipe "is a straight seam resistance welding pipe, abbreviated as ERW in English. It is used to transport vapor-liquid objects such as oil and natural gas, and can meet various requirements of high and low pressure. It plays a pivotal role in the field of transportation pipes in the world. It is also one of the three major structural carbon steel pipes.
1. Welded pipes are round pipes welded from steel plates, which are divided into high-frequency resistance welded pipes (ERW welded pipes), straight seam arc welded pipes (LSAW), and spiral welded pipes.
"SC" is used in electrical engineering. It can be used as a water gas pipe or a threading pipe, and it is relatively thick.
2. Pipeline pipes are also wire pipes. They are relatively thin and are represented by "T". They can only be used as threading pipes. 3. ERW pipes are "high-frequency resistance welded steel pipes". Unlike the welding process of ordinary welded pipes, the weld is formed by melting the parent material of the steel strip body, and the mechanical strength is better than that of ordinary welded pipes.
ERW stands for resistance welding. Resistance welding has the characteristics of high production efficiency, low cost, material saving, and easy automation. Therefore, it is widely used in various industrial sectors such as aviation, aerospace, energy, electronics, automobiles, and light industry. It is one of the important welding processes.
The biggest difference between ERW steel pipes and seamless steel pipes is that ERW has a weld, which is also the key to the quality of ERW steel pipes.
china erw steel pipe
ERW steel pipe has the advantages of using hot-rolled coil as raw material, uniform wall thickness can be controlled at about ±0.2mm, the two ends of the steel pipe are trimmed and beveled according to the American APl standard or GB/T9711.1 standard, and delivered in fixed length. In recent years, various natural gas pipeline projects and gas companies have widely used ERW steel pipes as the main steel pipes for urban pipelines.
