STEEL MATERIAL FOR PRESSURE VESSEL EXCELLENT IN LOW TEMPERATURE TOUGHNESS AND HYDROGEN SULFIDE STRESS CORROSION CRACKING RESISTANCE, METHOD FOR PRODUCING THE SAME, AND METHOD FOR PRODUCING DEEP-DRAWN PRODUCT THEREFROM

PROBLEM TO BE SOLVED: To provide a steel material for a pressure container excellent in low temperature toughness and resistance to (SSCC) Sulfide Stress Corrosion Cracking, a method for producing the same, and a method for producing a deep-drawn product using the steel material.SOLUTION: Provided i...

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Bibliographische Detailangaben
Hauptverfasser:	HONG SUN TAEK, NOH HEE GOON
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a steel material for a pressure container excellent in low temperature toughness and resistance to (SSCC) Sulfide Stress Corrosion Cracking, a method for producing the same, and a method for producing a deep-drawn product using the steel material.SOLUTION: Provided is a steel material for a pressure container excellent in low temperature toughness and hydrogen sulfide stress corrosion cracking resistance, having a prescribed composition, and whose fine structure is made of a three phase composite structure of ferrite, bainite and martensite. 【課題】低温靭性及び硫化水素応力腐食割れ（ＳｕｌｆｉｄｅＳｔｒｅｓｓＣｏｒｒｏｓｉｏｎＣｒａｃｋｉｎｇ、ＳＳＣＣ）に対する抵抗性に優れた圧力容器用鋼材、その製造方法、及び上記鋼材を用いた深絞り製品の製造方法を提供する。【解決手段】所定の組成を有し、微細組織は、フェライト、ベイナイト及びマルテンサイトの３相複合組織からなる、低温靭性及び硫化水素応力腐食割れ抵抗性に優れた圧力容器用鋼材。【選択図】なし