EP2383353A3 - High tensile steel containing Mn, steel surface product made from such steel and method for producing same - Google Patents

High tensile steel containing Mn, steel surface product made from such steel and method for producing same Download PDF

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Publication number
EP2383353A3
EP2383353A3 EP11164339.1A EP11164339A EP2383353A3 EP 2383353 A3 EP2383353 A3 EP 2383353A3 EP 11164339 A EP11164339 A EP 11164339A EP 2383353 A3 EP2383353 A3 EP 2383353A3
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EP
European Patent Office
Prior art keywords
steel
product made
relates
high tensile
producing same
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP11164339.1A
Other languages
German (de)
French (fr)
Other versions
EP2383353B1 (en
EP2383353A2 (en
Inventor
Dr.-Ing. Jens-Ulrik Becker
Dr.-Ing. Jian Bian
Dr. Brigitte Hammer
Dr. Thomas Heller
Christian Höckling
Dr.-Ing. Harald Hofmann
Dipl.-Ing. Matthias Schirmer
Oliver Bülters
Thomas Rieger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ThyssenKrupp Steel Europe AG
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ThyssenKrupp Steel Europe AG
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Publication date
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Application filed by ThyssenKrupp Steel Europe AG filed Critical ThyssenKrupp Steel Europe AG
Publication of EP2383353A2 publication Critical patent/EP2383353A2/en
Publication of EP2383353A3 publication Critical patent/EP2383353A3/en
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Publication of EP2383353B1 publication Critical patent/EP2383353B1/en
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0263—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment following hot rolling
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0278—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular surface treatment
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
    • C21D8/041—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing involving a particular fabrication or treatment of ingot or slab
    • C21D8/0415—Rapid solidification; Thin strip casting
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
    • C21D8/0421—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the working steps
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
    • C21D8/0447—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the heat treatment
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
    • C21D8/0478—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing involving a particular surface treatment
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

Die vorliegende Erfindung betrifft einen Stahl mit einer mindestens 4 % betragenden Bruchdehnung A80 und einer 900 - 1500 MPa betragenden Zugfestigkeit Rm, der sich durch eine kostengünstige Herstellbarkeit auszeichnet und gleichzeitig hohe Bruchdehnungswerte und damit einhergehend eine deutlich verbesserte Umformbarkeit besitzt. Zu diesem Zweck enthält der Stahl erfindungsgemäß neben Eisen und unvermeidbaren Verunreinigungen (in Gew.-%) C: bis zu 0,5 %, Mn: 4 - 12,0 %, Si: bis zu 1,0 %, Al: bis zu 3,0 %, Cr: 0,1 - 4,0 %, Cu: bis zu 2,0 %, Ni: bis zu 2,0 %, N: bis zu 0,05 %, P: bis zu 0,05 %, S: bis zu 0,01 % besteht, sowie optional ein Element oder mehrere Elemente aus der Gruppe "V, Nb, Ti" enthält, wobei die Summe der Gehalte an diesen Elementen höchstens gleich 0,5 % ist. Ebenso betrifft die Erfindung ein Stahlflachprodukt, das aus einem solchen Stahl hergestellt ist und dabei ein Gefüge aufweist, das zu 30 - 100 % aus Martensit, aus angelassenem Martensit oder Bainit und als Rest aus Austenit besteht. Schließlich betrifft die Erfindung ein Verfahren zur Herstellung eines so beschaffenen Stahlflachprodukts.The present invention relates to a steel having an elongation at break A80 of at least 4% and a tensile strength Rm of 900-1500 MPa, which is characterized by cost-effective manufacturability and at the same time has high elongation at break values and, correspondingly, significantly improved formability. For this purpose, in addition to iron and unavoidable impurities (in% by weight), the steel according to the invention contains C: up to 0.5%, Mn: 4-12.0%, Si: up to 1.0%, Al: up to 3.0%, Cr: 0.1-4.0%, Cu: up to 2.0%, Ni: up to 2.0%, N: up to 0.05%, P: up to 0.05 %, S: up to 0.01%, optionally containing one or more elements from the group "V, Nb, Ti", the sum of the contents of these elements being at most equal to 0.5%. The invention also relates to a flat steel product made of such a steel and having a structure consisting of 30-100% of martensite, of tempered martensite or bainite and the remainder of austenite. Finally, the invention relates to a process for the production of such a flat steel product.

EP11164339.1A 2010-04-30 2011-04-29 High tensile steel containing Mn, steel surface product made from such steel and method for producing same Active EP2383353B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010019114 2010-04-30

Publications (3)

Publication Number Publication Date
EP2383353A2 EP2383353A2 (en) 2011-11-02
EP2383353A3 true EP2383353A3 (en) 2015-03-18
EP2383353B1 EP2383353B1 (en) 2019-11-06

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ID=44520636

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2714975C1 (en) * 2016-08-23 2020-02-21 Зальцгиттер Флахшталь Гмбх Method of making high-strength steel strip with improved properties for further processing and steel strip of this type

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Publication number Priority date Publication date Assignee Title
EP2402472B2 (en) † 2010-07-02 2017-11-15 ThyssenKrupp Steel Europe AG High-tensile, cold formable steel and flat steel product composed of such steel
WO2015001367A1 (en) 2013-07-04 2015-01-08 Arcelormittal Investigación Y Desarrollo Sl Cold rolled steel sheet, method of manufacturing and vehicle
DE102013012118A1 (en) * 2013-07-18 2015-01-22 C.D. Wälzholz GmbH Cold-rolled narrow strip in the form of flat wire or profiles made of a high-strength steel for use in flexible pipes, in particular in flexible pipes for offshore applications and method for producing such cold-rolled narrow strips
DE102015111866A1 (en) * 2015-07-22 2017-01-26 Salzgitter Flachstahl Gmbh Formable lightweight structural steel with improved mechanical properties and process for the production of semi-finished products from this steel
DE102015112886A1 (en) * 2015-08-05 2017-02-09 Salzgitter Flachstahl Gmbh High-strength aluminum-containing manganese steel, a process for producing a steel flat product from this steel and steel flat product produced therefrom
DE102015112889A1 (en) * 2015-08-05 2017-02-09 Salzgitter Flachstahl Gmbh High-strength manganese-containing steel, use of the steel for flexibly rolled flat steel products and production methods together with flat steel product for this purpose
DE102016110661A1 (en) 2016-06-09 2017-12-14 Salzgitter Flachstahl Gmbh Process for producing a cold-rolled steel strip from a high-strength, manganese-containing steel
CN106297960B (en) * 2016-08-23 2017-07-14 重庆市特僖通信器材有限公司 A kind of cable production technology of Copper-Aluminum compound band
DE102016115618A1 (en) 2016-08-23 2018-03-01 Salzgitter Flachstahl Gmbh Process for producing a high-strength steel strip with improved properties during further processing and such a steel strip
EP3504351B1 (en) * 2016-08-24 2023-10-11 The University of Hong Kong Dual-phase steel and method for the fabrication of the same
DE102016117494A1 (en) 2016-09-16 2018-03-22 Salzgitter Flachstahl Gmbh Process for producing a formed component from a medium manganese steel flat product and such a component
DE102016117508B4 (en) 2016-09-16 2019-10-10 Salzgitter Flachstahl Gmbh Process for producing a flat steel product from a medium manganese steel and such a flat steel product
DE102016117502A1 (en) 2016-09-16 2018-03-22 Salzgitter Flachstahl Gmbh A method of making a hot or cold strip and / or a flexible rolled flat steel product from a high strength manganese steel and flat steel product hereafter
US11519050B2 (en) 2016-09-16 2022-12-06 Salzgitter Flachstahl Gmbh Method for producing a re-shaped component from a manganese-containing flat steel product and such a component
EP3535431B1 (en) * 2016-11-02 2021-06-09 Salzgitter Flachstahl GmbH Steel product with an intermediate manganese content for low temperature application and production method thereof
WO2018083029A1 (en) * 2016-11-02 2018-05-11 Salzgitter Flachstahl Gmbh Seamlessly produced and semi-hot-formed pipe made of a medium manganese steel and method for producing same
WO2018160700A1 (en) * 2017-03-01 2018-09-07 Ak Steel Properties, Inc. Hot-rolled steel with very high strength and method for production
CN106893931A (en) * 2017-03-04 2017-06-27 蒋培丽 A kind of granule enhancement type austenitic steel and its steel plate manufacturing process
WO2019020169A1 (en) 2017-07-25 2019-01-31 Thyssenkrupp Steel Europe Ag Sheet metal component, produced by hot working a flat steel product, and method for the production thereof
WO2019122960A1 (en) * 2017-12-19 2019-06-27 Arcelormittal Cold rolled and heat treated steel sheet, method of production thereof and use of such steel to produce vehicle parts
DE102017223633A1 (en) 2017-12-21 2019-06-27 Voestalpine Stahl Gmbh Cold-rolled flat steel product with metallic anticorrosion layer and method for producing the same
WO2019177896A1 (en) * 2018-03-13 2019-09-19 Ak Steel Properties, Inc. Reduction at elevated temperature of coated steels containing metastable austenite
CN109097680B (en) * 2018-08-10 2020-07-28 宝武集团鄂城钢铁有限公司 Method for manufacturing high-manganese high-aluminum nonmagnetic steel plate smelted by 50t intermediate frequency induction furnace
CN110306117B (en) * 2019-08-02 2021-04-02 宝武集团鄂城钢铁有限公司 High-uniformity steel plate for super-thick structure and manufacturing method thereof
CN110951956B (en) * 2019-12-19 2021-07-27 中北大学 Production method of ultra-high plasticity TWIP steel
DE102020204356A1 (en) 2020-04-03 2021-10-07 Thyssenkrupp Steel Europe Ag Hardened sheet metal component, produced by hot forming a flat steel product and process for its production
WO2022068201A1 (en) * 2020-10-02 2022-04-07 The University Of Hong Kong Strong and ductile medium manganese steel and method of making
CN114150227B (en) * 2021-12-07 2022-11-18 武汉科技大学 High-toughness hot stamping steel rolled by medium and thin slabs with Rm more than or equal to 1500MPa and production method
CN115572887B (en) * 2022-10-31 2023-06-09 常州大学 Manganese steel in superfine twin crystal gradient structure and preparation method thereof

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US4796946A (en) * 1987-09-04 1989-01-10 Inland Steel Company Automotive vehicle door and bar reinforcement
EP0425058A1 (en) * 1989-10-26 1991-05-02 MANNESMANN Aktiengesellschaft Application of a steel for the manufacture of reinforcing tubes for motor vehicle doors
US5454883A (en) * 1993-02-02 1995-10-03 Nippon Steel Corporation High toughness low yield ratio, high fatigue strength steel plate and process of producing same
US7018488B2 (en) * 2000-06-14 2006-03-28 Jfe Steel Corporation Steel pipe for use in reinforcement of automobile and method for production thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2714975C1 (en) * 2016-08-23 2020-02-21 Зальцгиттер Флахшталь Гмбх Method of making high-strength steel strip with improved properties for further processing and steel strip of this type

Also Published As

Publication number Publication date
EP2383353B1 (en) 2019-11-06
EP2383353A2 (en) 2011-11-02

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