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1. (WO2014178359) HIGH-STRENGTH, LOW-SPECIFIC GRAVITY STEEL PLATE HAVING EXCELLENT SPOT WELDING PROPERTIES
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2014/178359    International Application No.:    PCT/JP2014/061814
Publication Date: 06.11.2014 International Filing Date: 28.04.2014
IPC:
C22C 38/00 (2006.01), C22C 38/14 (2006.01), C22C 38/54 (2006.01), C21D 8/02 (2006.01), C21D 9/46 (2006.01)
Applicants: NIPPON STEEL & SUMITOMO METAL CORPORATION [JP/JP]; 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071 (JP)
Inventors: OKA Masaharu; (JP).
FUJITA Nobuhiro; (JP).
TAKAHASHI Manabu; (JP).
OKAMOTO Riki; (JP).
WAKABAYASHI Chisato; (JP)
Agent: SHIGA Masatake; 1-9-2, Marunouchi, Chiyoda-ku, Tokyo 1006620 (JP)
Priority Data:
2013-096428 01.05.2013 JP
Title (EN) HIGH-STRENGTH, LOW-SPECIFIC GRAVITY STEEL PLATE HAVING EXCELLENT SPOT WELDING PROPERTIES
(FR) PLAQUE EN ACIER DE HAUTE RÉSISTANCE, DE FAIBLE DENSITÉ RELATIVE AYANT D'EXCELLENTES PROPRIÉTÉS DE SOUDAGE PAR POINTS
(JA) スポット溶接性に優れた高強度低比重鋼板
Abstract: front page image
(EN)This steel plate contains, in mass%, more than 0.100% but no more than 0.500% C, at least 0.0001% but less than 0.20% Si, more than 0.20% but no more than 0.50% Mn, 3.0%-10.0% Al, 0.0030%-0.0100% N, more than 0.100% but no more than 1.000% Ti, 0.00001%-0.0200% P, and 0.00001%-0.0100% S; the sum of the C and Ti content fulfils, in mass%, 0.200 < C + Ti ≤ 1.500; the product of the Al and Si content fulfils, in mass% Al × Si ≤ 0.8; the remainder comprises Fe and unavoidable impurities; and the steel plate has a specific gravity of at least 5.5 but less than 7.5.
(FR)L'invention concerne une plaque en acier qui contient, en pourcentage en masse, plus de 0,100 % mais pas plus de 0,500 % de C, au moins 0,0001 % mais moins de 0,20 % de Si, plus de 0,20 % mais pas plus de 0,50 % de Mn, 3,0 % à 10,0 % d'Al, 0,0030 % à 0,0100 % de N, plus de 0,100 % mais pas plus de 1,000 % de Ti, 0,00001 % à 0,0200 % de P, et 0,00001 % à 0,0100 % de S ; la somme de la teneur en C et Ti satisfaisant, en pourcentage en masse, 0,200 < C + Ti ≤ 1,500 ; le produit de la teneur en Al et Si satisfaisant, en pourcentage en masse Al x Si ≤ 0,8 ; le reste comprenant du Fe et des impuretés inévitables. La plaque en acier présente une densité relative d'au moins 5,5 mais inférieure à 7,5.
(JA) この鋼板は、質量%で、C:0.100%超、0.500%以下、Si:0.0001%以上、0.20%未満、Mn:0.20%超、0.50%以下、Al:3.0%以上、10.0%以下、N:0.0030%以上、0.0100%以下、Ti:0.100%超、1.000%以下、P:0.00001%以上、0.0200%以下、S:0.00001%以上、0.0100%以下を含有し、質量%で、前記C及び前記Tiの含有量の和が、0.200<C+Ti≦1.500を満足し、質量%で、前記Al及び前記Siの含有量の積が、Al×Si≦0.8 を満足し、残部がFe及び不純物からなり、比重が5.5以上7.5未満である。
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, 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, IR, IS, JP, KE, KG, 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, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, 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, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, 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, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG).
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)