Special-shaped seamless steel pipes refer collectively to seamless steel pipes with cross-sectional shapes other than circular. These pipes are widely used in various structural components, tools, and mechanical parts. Compared to circular pipes, special-shaped pipes generally possess larger moment of inertia and section modulus, offering greater resistance to bending and torsion. They better accommodate the specific demands of usage conditions, significantly reducing structural weight, conserving steel resources, and enhancing labor productivity in component manufacturing.

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