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1. (WO2010137343) HIGH STRENGTH STEEL SHEET HAVING EXCELLENT HYDROGEN EMBRITTLEMENT RESISTANCE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2010/137343    International Application No.:    PCT/JP2010/003610
Publication Date: 02.12.2010 International Filing Date: 28.05.2010
IPC:
C22C 38/00 (2006.01), C21D 9/46 (2006.01), C22C 38/06 (2006.01), C22C 38/58 (2006.01)
Applicants: KABUSHIKI KAISHA KOBE SEIKO SHO [JP/JP]; 10-26, Wakinohama-cho 2-chome, Chuo-ku, Kobe-shi, Hyogo 6518585 (JP) (For All Designated States Except US).
VOESTALPINE STAHL GMBH [AT/AT]; Voestalpine-Strasse 3, A4031 Linz (AT) (For All Designated States Except US).
MUKAI, Yoichi; (For US Only).
KASUYA, Kouji; (For US Only).
NAKAYA, Michiharu; (For US Only).
TSUNEZAWA, Michitaka; (For US Only).
YUSE, Fumio; (For US Only).
KINUGASA, Junichiro; (For US Only).
TRAINT, Sandra; (For US Only).
PICHLER, Andreas; (For US Only)
Inventors: MUKAI, Yoichi; .
KASUYA, Kouji; .
NAKAYA, Michiharu; .
TSUNEZAWA, Michitaka; .
YUSE, Fumio; .
KINUGASA, Junichiro; .
TRAINT, Sandra; .
PICHLER, Andreas;
Agent: KOTANI, Etsuji; Osaka Nakanoshima Building 2nd Floor, 2-2, Nakanoshima 2-chome, Kita-ku, Osaka-shi, Osaka 5300005 (JP)
Priority Data:
2009-130924 29.05.2009 JP
Title (EN) HIGH STRENGTH STEEL SHEET HAVING EXCELLENT HYDROGEN EMBRITTLEMENT RESISTANCE
(FR) TOILE D'ACIER HAUTE RÉSISTANCE PRÉSENTANT UNE EXCELLENTE RÉSISTANCE À LA FRAGILISATION PAR L'HYDROGÈNE
(JA) 耐水素脆化特性に優れた高強度鋼板
Abstract: front page image
(EN)Disclosed is a high strength steel sheet having excellent hydrogen embrittlement resistance, which is a steel sheet having a tensile strength of not less than 1,180 MPa and contains, relative to the entire metal structure, not less than 85% by area of bainite, bainitic ferrite and tempered martensite in total, not less than 1% by area of residual austenite, and not more than 5% by area (including 0% by area) of fresh martensite.
(FR)La présente invention concerne une toile d'acier haute résistance dotée d'une excellente résistance à la fragilisation par l'hydrogène, dont la résistance à la traction est au minimum de 1 180 MPa et qui contient, par rapport à la totalité de la structure métallique, au minimum 85 % en surface de bainite, de ferrite bainitique et de martensite revenue au total, au minimum 1 % en surface d'austénite résiduelle et au maximum 5 % en surface (dont 0 % en surface) de martensite fraîche.
(JA) 引張強度が1180MPa以上の鋼板であって、金属組織全体に対して、ベイナイト、ベイニティックフェライト、および焼戻しマルテンサイト:合計で85面積%以上、残留オーステナイト:1面積%以上、フレッシュマルテンサイト:5面積%以下(0面積%を含む)を満足する耐水素脆化特性に優れた高強度鋼板。
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LR, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)