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Precision profiled pipe

Author: Liaocheng precision steel pipe factory source: unknown date: January 30, 2019 18:16
      In general, there are two or more non-uniform and irregular inner holes in the precision special-shaped pipe, and the cross-section is usually disordered because of the asymmetry, so it is easy to appear the phenomenon of uneven velocity distribution on the cross-section. In addition, the wall thickness is also uneven, sometimes the wall thickness difference can reach 10 times or even dozens of times, resulting in different extrusion swell and different residual stress. Different from the ordinary special-shaped pipe, the precision special-shaped pipe is more excellent in precision and brightness, so it is favored by various industries.

      The commonly used materials of precision special-shaped steel pipe are: 20 mm, 45 mm, 16Mn (Q345A, B, C, D, e) 27SiMn, 20Cr, 40Cr and other materials.

In the production of precision profiled steel pipe, some are produced with national standard profiled steel pipe or round steel tube as tube blank. Because of the small sales volume, the price is often higher than that of ordinary shaped steel pipe. However, there are also disadvantages of precision profiled steel pipe, because there is no fixed standard requirements. Some manufacturers use waste profiled steel pipe or defective products as tube blank, so the price is much cheaper.

    Therefore, the price of precision special-shaped steel pipe is often unstable, and the quality of products is uneven.

Application of precision profiled steel pipe:

Precision profiled steel pipe is widely used in various structural parts, tools and mechanical parts. Compared with the circular pipe, the special-shaped pipe has larger moment of inertia and section modulus, and has greater bending and torsion resistance, which can greatly reduce the structural weight and save steel.


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Shandong Liaocheng precision steel pipe factory
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Mobile phone: 13963013099 18963561655
Email: 13963013099@163.com
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Address: JIANGGUANTUN Industrial Park, Liaocheng City, Shandong Province

Contact person: factory director Wang mobile phone: 13963013099 18963561655
Email: 13963013099@163.com Address: JIANGGUANTUN Industrial Park, Liaocheng City, Shandong Province
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