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1. (WO2017135240) HOT ROLLED Nb-CONTAINING FERRITIC STAINLESS STEEL SHEET AND METHOD FOR PRODUCING SAME, AND COLD ROLLED Nb-CONTAINING FERRITIC STAINLESS STEEL SHEET AND METHOD FOR PRODUCING SAME
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2017/135240 International Application No.: PCT/JP2017/003379
Publication Date: 10.08.2017 International Filing Date: 31.01.2017
IPC:
C22C 38/00 (2006.01) ,C21D 8/02 (2006.01) ,C21D 9/46 (2006.01) ,C22C 38/38 (2006.01) ,C22C 38/58 (2006.01)
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
C
ALLOYS
38
Ferrous alloys, e.g. steel alloys
C CHEMISTRY; METALLURGY
21
METALLURGY OF IRON
D
MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING, OR OTHER TREATMENTS
8
Modifying the physical properties by deformation combined with, or followed by, heat treatment
02
during manufacturing of plates or strips
C CHEMISTRY; METALLURGY
21
METALLURGY OF IRON
D
MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING, OR OTHER TREATMENTS
9
Heat treatment, e.g. annealing, hardening, quenching, tempering, adapted for particular articles; Furnaces therefor
46
for sheet metals
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
C
ALLOYS
38
Ferrous alloys, e.g. steel alloys
18
containing chromium
38
with more than 1.5% by weight of manganese
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
C
ALLOYS
38
Ferrous alloys, e.g. steel alloys
18
containing chromium
40
with nickel
58
with more than 1.5% by weight of manganese
Applicants:
日新製鋼株式会社 NISSHIN STEEL CO., LTD. [JP/JP]; 東京都千代田区丸の内三丁目4番1号 4-1, Marunouchi 3-chome, Chiyoda-ku, Tokyo 1008366, JP
Inventors:
藥師神 豊 YAKUSHIJIN, Yutaka; JP
弘中 明 HIRONAKA, Akira; JP
今川 一成 IMAKAWA, Kazunari; JP
Agent:
曾我 道治 SOGA, Michiharu; JP
梶並 順 KAJINAMI, Jun; JP
大宅 一宏 OHYA, Kazuhiro; JP
Priority Data:
2016-01788302.02.2016JP
Title (EN) HOT ROLLED Nb-CONTAINING FERRITIC STAINLESS STEEL SHEET AND METHOD FOR PRODUCING SAME, AND COLD ROLLED Nb-CONTAINING FERRITIC STAINLESS STEEL SHEET AND METHOD FOR PRODUCING SAME
(FR) TÔLE D'ACIER INOXYDABLE FERRITIQUE CONTENANT DU Nb LAMINÉE À CHAUD ET SON PROCÉDÉ DE FABRICATION ET TÔLE D'ACIER INOXYDABLE FERRITIQUE CONTENANT DU Nb LAMINÉE À FROID ET SON PROCÉDÉ DE FABRICATION
(JA) Nb含有フェライト系ステンレス熱延鋼板及びその製造方法、並びにNb含有フェライト系ステンレス冷延鋼板及びその製造方法
Abstract:
(EN) This hot rolled Nb-containing ferritic stainless steel sheet has a composition that contains 0.030% by mass or less of C, 2.00% by mass or less of Si, 2.00% by mass or less of Mn, 0.050% by mass or less of P, 0.040% by mass or less of S, from 10.00% by mass to 25.00% by mass of Cr, 0.030% by mass or less of N and from 0.01% by mass to 0.80% by mass of Nb, with the balance made up of Fe and unavoidable impurities. With respect to this hot rolled Nb-containing ferritic stainless steel sheet, the precipitation amount of Nb carbonitrides is 0.2% by mass or more, and 10 or less Laves phases having a particle diameter of 0.1 μm or less are present per area of 10 μm2.
(FR) L'invention concerne une tôle d'acier inoxydable ferritique, contenant du Nb et laminée à chaud, dont la composition contient 0,030 % en masse ou moins de C, 2,00 % en masse ou moins de Si, 2,00 % en masse ou moins de Mn, 0,050 % en masse ou moins de P, 0,040 % en masse ou moins de S, de 10,00 % en masse à 25,00 % en masse de Cr, 0,030 % en masse ou moins de N et de 0,01 % en masse à 0,08 % en masse de Nb, le reste étant constitué de Fe et des impuretés inévitables. En ce qui concerne cette tôle d'acier inoxydable ferritique, contenant du Nb et laminée à chaud, l'amplitude de la précipitation des carbonitrures de Nb est supérieure ou égale à 0,2 % en masse et 10 ou moins de 10 phases de Laves ayant un diamètre des particules inférieur ou égal à 0,1 µm sont présentes par surface de 10 µm2.
(JA) 本発明のNb含有フェライト系ステンレス熱延鋼板は、C:0.030質量%以下、Si:2.00質量%以下、Mn:2.00質量%以下、P:0.050質量%以下、S:0.040質量%以下、Cr:10.00質量%~25.00質量%、N:0.030質量%以下、Nb:0.01質量%~0.80質量%を含有し、残部がFe及び不可避的不純物からなる組成を有する。このNb含有フェライト系ステンレス熱延鋼板において、Nb炭窒化物の析出量は0.2質量%以上であり、且つ粒径0.1μm以下のラーベス相が面積10μm2あたり10個以下である。
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, DJ, 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, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, 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 (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, 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)
Also published as:
JPWO2017135240CA3009133CN108495944MYPI 2018702677ID2018/09863IN201817020329
EP3388542KR1020180109865US20180363089