1) The forming process of high frequency straight seam welded pipe has small springback and residual stress.
(2) The effect of deformation hardening is small, and the roundness after geometric standard is accurate, which is helpful to ensure the quality of construction and welding.
(3) High-frequency straight seam welded pipe has good weld shape and is not easy to produce undercut. Surface welding is not medium defect.
(4) High frequency straight seam welded pipe distributes a point on a circumference, so it can be carried out in a favorable position according to the requirements of the weld.