無縫異型鋼管廣泛用于各種結構件、工具和機械零部件。和圓管相比，無縫異型鋼管一般都有較大的慣性矩和截面模數(shù)，有較大的抗彎抗扭能力，可以大大減輕結構重量，節(jié)約鋼材。

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.