STEEL HAVING EXCELLENT HYDROGEN-INDUCED CRAKING RESISTANCE AND LOW-TEMPERATURE IMPACT TOUGHNESS, AND METHOD FOR MANUFACTURING SAME

• Main Authors: SO, Tae-Il, KANG, Sang-Deok
• Format: Patent
• Language: English; French; Korean
• Published: 22.06.2023
• Subjects: ALLOYS; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; METALLURGY; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The present invention relates to steel suitable for a pressure vessel that can be used as petrochemical manufacturing equipment, a storage tank, and the like, and, more specifically, to steel having excellent hydrogen-induced cracking (HIC) resistance and low-temperature impact toughness and a method for manufacturing same. La présente invention concerne un acier approprié pour un récipient sous pression qui peut être utilisé comme équipement de fabrication pétrochimique, un réservoir de stockage et similaire, et, plus spécifiquement, un acier ayant une excellente résistance à la fissuration induite par l'hydrogène (HIC) et une résistance à l'impact à basse température et son procédé de fabrication. 본 발명은 석유화학 제조설비, 저장탱크 등으로 사용될 수 있는 압력용기용으로 적합한 강재에 관한 것으로서, 보다 상세하게는 수소유기균열(Hydrogen Induced Cracking, HIC) 저항성 및 저온 충격인성이 우수한 강재와 이를 제조하는 방법에 관한 것이다.