Steel pipes are versatile and essential in various industries, serving purposes such as transportation pipelines, engineering structures, thermal equipment, petrochemical industries, machinery manufacturing, and geological drilling with high-pressure equipment. Depending on the production process, steel pipes are categorised into seamless and welded types. These pipes are not only used to transport fluids and powdery solids or exchange heat energy but are also integral in manufacturing mechanical parts and containers. As an economical steel solution, steel pipes are employed in constructing building structure grids, pillars, and mechanical supports, reducing weight and saving 20-40% of metal. They enable factory mechanised construction and, when used in highway bridges, simplify construction, save steel, and significantly reduce the area needed for coating protective layers, thereby saving on investment and maintenance costs.