POSCO Holdings Inc.
STEEL MATERIAL FOR WELDED STEEL PIPE, HAVING EXCELLENT LONGITUDINAL UNIFORM ELONGATION, MANUFACTURING METHOD THEREFOR, AND STEEL PIPE USING SAME

Abstract:

The present invention relates to a steel material used for a line pipe for transporting crude oil or natural gas and the like and, more specifically, to a steel material for a welded steel pipe, having excellent longitudinal uniform elongation for the pipe, a manufacturing method therefor, and a steel pipe using the same.