Welded steel pipes, often simply referred to as welded pipes, are crafted by crimping and then welding steel plates or strips together. These pipes are characterized by their uncomplicated manufacturing process, which ensures high production efficiency, and they come in an extensive range of types and sizes. Specifically, welded steel pipes intended for the transportation of low-pressure fluids, as stipulated by the API 5L standard, are also recognized as general welded pipes or, more commonly, black pipes. Their primary application lies in conveying general lower-pressure fluids, including but not limited to water, gas, air, oil, and heating steam.