Alloy tubes feature hollow cross-sections and are extensively used as pipelines for conveying fluids, such as oil, natural gas, coal gas, water, and certain solid materials.Alloy steel pipeCompared to solid steel bars like round steel, alloy steel tubes are lighter in weight with the same bending and torsional strength. They are an economical cross-section steel widely used in the manufacture of structural components and mechanical parts, such as oil drilling pipes.Automotive Propeller ShaftBicycles frames, steel scaffolding used in construction, and other similar products. Alloy steel tubes are used to manufacture circular components, which can enhance material efficiency, simplify manufacturing processes, save materials, and reduce labor costs, such as bearing sleeves and jack sleeves, among others, which are commonly made from steel tubes. Alloy steel tubes are also indispensable for various conventional weapons, such as gun barrels, which are also made from steel tubes. Alloy steel tubes can be classified into round tubes and non-standard tubes based on the shape of their cross-sectional area. Due to the fact that, under the same perimeter, a circular area is larger, round tubes can transport more fluid. Additionally, circular cross-sections distribute forces more evenly when subjected to internal or external radial pressures, which is why the majority of steel tubes are round.