ULTRAHIGH STRENGTH STEEL EXCELLENT IN DELAYED FRACTURE RESISTANCE

• Main Authors: MORIYA YUTAKA, NIIKURA MASAKAZU
• Format: Patent
• Language: English
• Published: 28.10.1997
• Edition: 6
• Subjects: ALLOYS; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; METALLURGY; TREATMENT OF ALLOYS OR NON-FERROUS METALS

PROBLEM TO BE SOLVED: To provide an ultrahigh strength steel having >=150kgf/mm tensile strength and excellent in delayed fracture resistance. SOLUTION: This steel has a composition consisting of, by weight, 0.005-0.1% C, 25-35% Ni, 0.01-0.1% Al, further one or >=2 kinds among 0.01-1% Mn, 0.01...