POSCO Holdings Inc.
HIGH-STRENGTH STEEL MATERIAL HAVING EXCELLENT LOW-TEMPERATURE STRAIN AGING IMPACT PROPERTIES AND WELDING HEAT-AFFECTED ZONE IMPACT PROPERTIES AND METHOD FOR MANUFACTURING SAME

Abstract:

The present invention relates to a steel material for pressure vessels, offshore structures and the like and, more specifically, to a high-strength steel material having excellent low-temperature strain aging impact properties and a method for manufacturing same.