Seamless steel pipes feature hollow cross-sections and are extensively used as pipelines for conveying fluids, such as oil, gas, water, and certain solid materials. Compared to solid steel like round bars, seamless steel pipes have lighter weight while maintaining equivalent bending and torsional strength. They are an economical section steel, widely employed in the production of structural components and mechanical parts, including oil drill pipes, automotive propshafts, bicycle frames, and steel scaffolding for construction. Manufacturing circular parts from steel pipes can enhance material utilization, simplify production processes, and save on materials and labor, making seamless steel pipes a popular choice for such applications.