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1. (WO2018160700) HOT-ROLLED STEEL WITH VERY HIGH STRENGTH AND METHOD FOR PRODUCTION
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2018/160700 International Application No.: PCT/US2018/020234
Publication Date: 07.09.2018 International Filing Date: 28.02.2018
IPC:
C21D 6/00 (2006.01) ,C21D 8/02 (2006.01) ,C22C 38/04 (2006.01) ,C22C 38/22 (2006.01) ,C22C 38/24 (2006.01) ,C22C 38/26 (2006.01) ,C22C 38/38 (2006.01)
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
6
Heat treatment of ferrous 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
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
C
ALLOYS
38
Ferrous alloys, e.g. steel alloys
04
containing 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
22
with molybdenum or tungsten
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
24
with vanadium
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
26
with niobium or tantalum
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
Applicants:
AK STEEL PROPERTIES, INC. [US/US]; 9227 Centre Pointe Drive West Chester, OH 45069, US
Inventors:
PAVLINA, Erik, James; US
ROUBIDOUX, John, Andrew; US
Agent:
MOYER, Trent, A.; US
ACHESON, JR., Edwin, R.; US
CONLEY, Scott, R.; US
GOLDSTEIN, Steven, J.; US
SCHOEN, Ann, G.; US
Priority Data:
62/465,52701.03.2017US
Title (EN) HOT-ROLLED STEEL WITH VERY HIGH STRENGTH AND METHOD FOR PRODUCTION
(FR) ACIER LAMINÉ À CHAUD À TRÈS HAUTE RÉSISTANCE ET SON PROCÉDÉ DE FABRICATION
Abstract:
(EN) Hot-rolled steels provide increased strength without degrading elongation or weldability. Substitutional elements are included in the steel composition to increase the propensity of the steel to form martensite after hot-rolling processes despite relatively low cooling rates encountered during the hot-rolling processes.
(FR) La présente invention concerne des aciers laminés à chaud qui offrent une résistance accrue sans dégrader l'allongement ou la soudabilité. Des éléments de substitution sont inclus dans la composition d'acier pour augmenter la propension de l'acier à former de la martensite après des processus de laminage à chaud malgré des vitesses de refroidissement relativement faibles rencontrées pendant les processus de laminage à chaud.
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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: English (EN)
Filing Language: English (EN)