无缝异型钢管广泛用于各种结构件、工具和机械零部件。和圆管相比，无缝异型钢管一般都有较大的惯性矩和截面模数，有较大的抗弯抗扭能力，可以大大减轻结构重量，节约钢材。
Seamless profiled steel pipes are widely used in various structural parts, tools and mechanical parts. Compared with the circular pipe, the seamless special-shaped steel pipe generally has larger inertia moment and section modulus, has greater flexural and torsional resistance, can greatly reduce the weight of the structure and save steel.
