Welded steel pipe, also known as welded pipe, is a steel pipe made by welding steel plates or strips after being rolled and formed, usually with a fixed length of 6 meters. The production process of welded steel pipes is simple, with high production efficiency, multiple varieties and specifications, and less equipment investment, but generally lower strength than seamless steel pipes.
characteristic
The production process of straight seam welded pipe is simple, with high production efficiency, low cost, and rapid development. The strength of spiral welded pipes is generally higher than that of straight seam welded pipes. Narrow billets can be used to produce larger diameter welded pipes, and billets of the same width can also be used to produce welded pipes of different diameters. However, compared to straight seam pipes of the same length, the weld length increases by 30-100% and the production speed is lower.
Application scope
The product is widely used in water engineering, petrochemical industry, chemical industry, power industry, agricultural irrigation, and urban construction, and is one of the twenty key products developed in China. Used for liquid transportation: water supply and drainage. Used for gas transportation: gas, steam, liquefied petroleum gas. Used as a structure: as a pile driving pipe, as a bridge; Pipelines for docks, roads, building structures, etc.