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1. (WO2018139095) HOT-ROLLED STEEL SHEET FOR COILED TUBING
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Pub. No.: WO/2018/139095 International Application No.: PCT/JP2017/044845
Publication Date: 02.08.2018 International Filing Date: 14.12.2017
IPC:
C22C 38/00 (2006.01) ,C21D 9/08 (2006.01) ,C21D 9/50 (2006.01) ,C22C 38/58 (2006.01) ,C21D 9/46 (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
9
Heat treatment, e.g. annealing, hardening, quenching, tempering, adapted for particular articles; Furnaces therefor
08
for tubular bodies or pipes
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
50
for welded joints
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
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
Applicants:
JFEスチール株式会社 JFE STEEL CORPORATION [JP/JP]; 東京都千代田区内幸町二丁目2番3号 2-3, Uchisaiwai-cho 2-chome, Chiyoda-ku, Tokyo 1000011, JP
Inventors:
松本 晃英 MATSUMOTO Akihide; JP
中田 博士 NAKATA Hiroshi; JP
豊田 俊介 TOYODA Shunsuke; JP
Agent:
熊坂 晃 KUMASAKA Akira; JP
森 和弘 MORI Kazuhiro; JP
井上 茂 INOUE Shigeru; JP
Priority Data:
2017-01078825.01.2017JP
Title (EN) HOT-ROLLED STEEL SHEET FOR COILED TUBING
(FR) TÔLE D'ACIER LAMINÉE À CHAUD POUR TUBE D'INTERVENTION ENROULÉ
(JA) コイルドチュービング用熱延鋼板
Abstract:
(EN) Provided is a hot-rolled steel sheet suitable for producing, without performing whole tube quenching treatment and reheating tempering treatment after electric resistance welding, an electric resistance welded steel tube for coiled tubing which exhibits the workability required for roll forming, and a high yield strength. The present invention has a specific content, in mass%, of C, Si, Mn, P, S, Al, Cr, Cu, Ni, Mo, Nb, V, Ti, and N, and has a structure comprising, in volume fraction, at least 3% but not more than 20% of martensite, and not more than 10% of retained austenite, the remainder being bainite. The present invention has a yield strength of 600 MPa or higher, a tensile strength of 950 MPa or higher, and a uniform elongation of 7.0% or higher.
(FR) L'invention concerne une tôle d'acier laminée à chaud appropriée pour produire, sans réaliser un traitement de trempe de tube entier et un traitement de revenu de réchauffage après le soudage par résistance électrique, un tube en acier soudé par résistance électrique pour tube d'intervention enroulé qui présente l'aptitude au façonnage requise pour le roulage et une limite d'élasticité élevée. La présente invention a une teneur spécifique, en % en masse, de C, Si, Mn, P, S, Al, Cr, Cu, Ni, Mo, Nb, V, Ti et N et a une structure comprenant, en fraction volumique, au moins 3 % mais pas plus de 20 % de martensite et pas plus de 10 % d'austénite résiduelle, le reste étant de la bainite. La présente invention présente une limite d'élasticité supérieure ou égale à 600 MPa, une résistance à la traction supérieure ou égale à 950 MPa et un allongement uniforme supérieur ou égal à 7,0 %.
(JA) ロール成形に必要な加工性を有し、且つ高降伏強度を有するコイルドチュービング用電縫鋼管を、電縫溶接後の全管焼入れ処理および再加熱焼戻し処理は施さずに製造するのに適した熱延鋼板を提供する。 質量%で、C、Si、Mn、P、S、Al、Cr、Cu、Ni、Mo、Nb、V、Ti、Nを特定の含有量で有し、体積分率で、3%以上20%以下のマルテンサイトと、10%以下の残留オーステナイトと、残部としてベイナイトと、からなる組織を有し、降伏強度が600MPa以上であり、引張強度が950MPa以上であり、一様伸びが7.0%以上であるようにする。
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, JO, 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 Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (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)