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Seamless Square Steel Pipe

  • Yuantai Derun

Seamless square steel pipe specification description

OD: 10*10-1000*1000mm 10*15-800*1100mm

Thickness: 0.5-60mm

Length: 1-24M

Tolerance: ±5%

Brand: yuantai

Port: Tianjin Xingang

Payment Method: TT/LC

Certification: CE/ISO9001/14001/45001/LEED/EPD/PHD/BV/DNV/BC1/FPC/EN10210/10219/JIS


Standards: Hollow section: ASTM A500/A501,EN10219/10210,JIS G3466,GB/T6728/3094 AS1163, CSA G40.20/G40.21

Tolerance: as required

Introduction to seamless square steel pipe (round to square) process

This process uses roll cold bending and extrusion deformation to process circular welded tubes or seamless steel tubes into square, rectangular and other special-shaped tubes. Like stamping, bending, drawing and other deformation methods, it is also a cold bending forming process in the category of metal pressure processing.

Yuantai Derun is specialized in production and management of all kinds of seamless square and rectangular tubes with various specifications and materials! With complete varieties, excellent quality and reasonable price, our company enjoys a good reputation in the same industry in China with its good reputation, perfect service and sufficient supply of goods!

The company has 5 sets of seamless square steel pipe production equipment and 5 sets of rectangular square tube production equipment, with an annual output of more than 150000 tons.

Project Case:

The company's steel pipe products have participated in the construction of large domestic and foreign projects for many times. The following are some engineering cases in which Yuantaiderun participated.


Qualification and honor


Packaging logistics


Quality inspection


Production equipment



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