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Quotation of special shaped steel pipe
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product texture of material Specifications Place of Origin
Quotation of special shaped steel pipe Q235B 60*21 Tianjin
Special shaped steel pipe Q235B 80*52 Tianjin
Special shaped steel pipe Q235B 91*51 Tianjin
Special shaped steel pipe Q235B 71*14 Tianjin
Special shaped steel pipe Q235B 88*13 Tianjin


? Special shaped steel pipe, special-shaped steel pipe bending forming, this forming method, is also known as bending. There are two kinds of special-shaped steel pipe bending, one is true bending, the other is empty bending.
True bending square tube compaction, then bending bending, internal and external roller tube, special-shaped steel pipe inner and outer wall compaction is a two-way process. The real advantage of rectangular tube bending is that the solid bending will be relatively small, and, to form a more accurate, and in the production time, as long as the use of roller type is accurate, and the internal rebound of the steel pipe forming more accurate angle of shaped steel pipe, we can ensure the accuracy.
There are some disadvantages of instant bending. The main drawing time will cause the steel pipe to become thinner, the true bending will cause the rectangular pipe to bend. In agricultural products, the length of the bending curve along the length direction of the special-shaped steel pipe will be shortened, and the metal content will be thinned due to stretching.
Hollow Bending Rectangular pipe production, external roller and square and special-shaped steel pipe outer wall, with metal bending, empty bending time of individual, steel pipe bending curve will produce certain compression, so the compression effect, longitudinal variable length zigzag line, rectangular tube bending metal, will become thick air bending, compression or thickening effect.
According to the needs of different products, the appropriate process configuration is selected according to the needs of different products. It should be noted that when stretched and compressed, the impression on product quality, or resulting in square rectangular tube deformation.

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