Special-shaped tubes are seamless steel tubes that are cold-drawn into various shapes. Special-shaped tubes are generally distinguished based on their cross-sectional shapes, and can be further
classified into seamless steel special-shaped tubes, aluminum alloy special-shaped tubes, and plastic special-shaped tubes according to their materials.
The development of special-shaped tubes primarily focuses on the expansion of product varieties, encompassing cross-sectional shapes, materials, and properties. Extrusion, cross-wedge rolling,
and cold drawing are effective methods for producing special-shaped tubes, suitable for manufacturing tubes with various cross-sections and materials. To produce a wide range of special-shaped
tubes, it is necessary to possess multiple production methods.
