UOE STEEL PIPE WITH EXCELLENT CRASH RESISTANCE, AND METHOD OF MANUFACTURING THE UOE STEEL PIPE

摘要

A UOE steel pipe with an excellent crash resistance and a method of manufacturing the UOE steel pipe, the UOE steel pipe wherein the ratio of the yield strength thereof against compression to that against tension in circumferential direction is 1.05 or more near the inner surface thereof and 0.9 to 1.0 in an area between the center of the plate thickness to the outer surface thereof, whereby the crash resistance of the UOE steel pipe when an external load is applied thereto can be remarkably improved.