HIGH TENSILE STRENGTH STEEL FOR SUPERLARGE HEAT INPUT WELDING 超大入熱溶接用高張力鋼 - 特許庁
To provide a high tensile strength steel excellent in the toughness of a part affected by a superlarge heat input weld heat in which heat input is ≥200 kJ/c (e.g. even about 1,500 kJ/c). 本発明は、入熱が200kJ/cm以上(例えば1500kJ/cm程度でも)の超大入熱溶接熱影響部の靭性に優れた高張力鋼を提供する。 - 特許庁