The production process of large-diameter straight seam welded pipes is simple and the production efficiency is high. However, the strength of large-diameter spiral welded pipes is generally higher than that of straight seam welded pipes. They can produce welded pipes with larger diameters using narrower billets, and can also produce welded pipes and frame pipes with different diameters using billets of the same width. However, the production efficiency is lower compared to straight seam steel pipes. Large caliber welded pipes are mainly used in large-scale pipeline engineering, water and gas transmission engineering, urban pipeline construction, municipal engineering, water supply and drainage engineering, large building steel structures, pile foundations, and other fields.