DE502006003830D1 - A method for producing steel flat products from a complex phase structure forming steel - Google Patents

A method for producing steel flat products from a complex phase structure forming steel

Info

Publication number
DE502006003830D1
DE502006003830D1 DE502006003830T DE502006003830T DE502006003830D1 DE 502006003830 D1 DE502006003830 D1 DE 502006003830D1 DE 502006003830 T DE502006003830 T DE 502006003830T DE 502006003830 T DE502006003830 T DE 502006003830T DE 502006003830 D1 DE502006003830 D1 DE 502006003830D1
Authority
DE
Germany
Prior art keywords
hot
rolled strip
strip
rolled
thickness
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.)
Active
Application number
DE502006003830T
Other languages
German (de)
Inventor
Brigitte Dr-Ing Hammer
Thomas Dr-Ing Heller
Johann Wilhelm Dr Schmitz
Jochen Dr Wans
Andreas Nuss
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
Original Assignee
ThyssenKrupp Steel AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ThyssenKrupp Steel AG filed Critical ThyssenKrupp Steel AG
Publication of DE502006003830D1 publication Critical patent/DE502006003830D1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • 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
    • C21D8/0426—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
    • C21D8/04—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
    • C21D8/0473—Final recrystallisation annealing
    • 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
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • 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
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
    • 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
    • C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/001—Austenite
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/002—Bainite
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/008—Martensite

Abstract

The method for the production of flat steel products useful in automotive industry, comprises casting a steel into a cast strip having a thickness of 1-4 mm, hot-rolling the cast strip in-line into a hot-rolled strip having a thickness of higher than 1.5 mm in a continuous process at 900-1100[deg] C, and coiling the hot-rolled strip at 550-620[deg] C to obtain a hot-rolled strip, which has a minimum tensile strength R m of 800 MPa and a minimum breaking elongation A 8 0 of 10%. The hot-rolled strip is cold-rolled with a thickness of 0.5-1.4 mm at 750-850[deg] C to obtain a cold-rolled strip. The method for the production of flat steel products useful in automotive industry, comprises casting a steel into a cast strip having a thickness of 1-4 mm, hot-rolling the cast strip in-line into a hot-rolled strip having a thickness of higher than 1.5 mm in a continuous process at 900-1100[deg] C, and coiling the hot-rolled strip at 550-620[deg] C to obtain a hot-rolled strip, which has a minimum tensile strength R m of 800 MPa and a minimum breaking elongation A 8 0 of 10%. The steel forms a complex phase structure. The shaping degree is greater than 20%. The width of the hot-rolled strip is more than 1.600 mm. The hot-rolled strip is cold-rolled with a thickness of 0.5-1.4 mm at 750-850[deg] C to obtain a cold-rolled strip, which has a minimum tensile strength of 800 MPa and a minimum breaking elongation A 8 0 of 10%. The cold- or hot-rolled strip is provided with a metallic coating, which is galvanizing.
DE502006003830T 2006-10-30 2006-10-30 A method for producing steel flat products from a complex phase structure forming steel Active DE502006003830D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06123134A EP1918402B1 (en) 2006-10-30 2006-10-30 Process for manufacturing steel flat products from a steel forming a complex phase structure

Publications (1)

Publication Number Publication Date
DE502006003830D1 true DE502006003830D1 (en) 2009-07-09

Family

ID=37733972

Family Applications (1)

Application Number Title Priority Date Filing Date
DE502006003830T Active DE502006003830D1 (en) 2006-10-30 2006-10-30 A method for producing steel flat products from a complex phase structure forming steel

Country Status (10)

Country Link
US (1) US20090277546A1 (en)
EP (1) EP1918402B1 (en)
JP (1) JP5232793B2 (en)
KR (1) KR101458039B1 (en)
CN (1) CN101528969B (en)
AT (1) ATE432372T1 (en)
DE (1) DE502006003830D1 (en)
ES (1) ES2325960T3 (en)
PL (1) PL1918402T3 (en)
WO (1) WO2008052917A1 (en)

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US10071416B2 (en) * 2005-10-20 2018-09-11 Nucor Corporation High strength thin cast strip product and method for making the same
AU2008311043B2 (en) 2007-10-10 2013-02-21 Nucor Corporation Complex metallographic structured steel and method of manufacturing same
CN101928875A (en) * 2009-06-22 2010-12-29 鞍钢股份有限公司 High-strength cold-rolled plate with favorable forming property and preparation method thereof
WO2011100798A1 (en) 2010-02-20 2011-08-25 Bluescope Steel Limited Nitriding of niobium steel and product made thereby
CN102303212B (en) * 2011-06-24 2013-04-10 成都申信达机械有限公司 Process for manufacturing lining board of wet-spraying machine
CN103302255B (en) * 2012-03-14 2015-10-28 宝山钢铁股份有限公司 A kind of thin strap continuous casting 700MPa level high-strength air corrosion-resistant steel manufacture method
CN103305759B (en) * 2012-03-14 2014-10-29 宝山钢铁股份有限公司 Thin strip continuous casting 700MPa grade high-strength weather-resistant steel manufacturing method
CN103305770B (en) * 2012-03-14 2015-12-09 宝山钢铁股份有限公司 A kind of manufacture method of thin strap continuous casting 550MPa level high-strength air corrosion-resistant steel band
US10053757B2 (en) 2012-08-03 2018-08-21 Tata Steel Ijmuiden Bv Process for producing hot-rolled steel strip
CN106255772B (en) * 2014-04-30 2018-09-07 杰富意钢铁株式会社 Steel sheet for high-strength container and its manufacturing method
CN104480397B (en) * 2014-12-19 2017-06-23 山东钢铁股份有限公司 A kind of 700MPa grades of Hot Rolling Automobile structural steel and preparation method thereof
CN107438487B (en) 2014-12-19 2021-01-12 纽科尔公司 Hot-rolled light martensitic steel plate and manufacturing method thereof
DE102016202005A1 (en) * 2016-02-10 2017-08-10 Thyssenkrupp Ag Commercial vehicle wheel and use

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US5470529A (en) * 1994-03-08 1995-11-28 Sumitomo Metal Industries, Ltd. High tensile strength steel sheet having improved formability
ES2230613T3 (en) * 1996-07-12 2005-05-01 Thyssenkrupp Stahl Ag HOT LAMINATION STEEL BAND AND METHOD FOR MANUFACTURING.
DE19710125A1 (en) * 1997-03-13 1998-09-17 Krupp Ag Hoesch Krupp Process for the production of a steel strip with high strength and good formability
JP3931455B2 (en) * 1998-11-25 2007-06-13 Ｊｆｅスチール株式会社 Steel plate for can and manufacturing method thereof
FR2796966B1 (en) * 1999-07-30 2001-09-21 Ugine Sa PROCESS FOR THE MANUFACTURE OF THIN STRIP OF TRIP-TYPE STEEL AND THIN STRIP THUS OBTAINED
FR2798871B1 (en) * 1999-09-24 2001-11-02 Usinor PROCESS FOR PRODUCING CARBON STEEL STRIPS, ESPECIALLY STEEL FOR PACKAGING, AND STRIPS THUS PRODUCED
CN1107122C (en) * 2000-02-29 2003-04-30 济南济钢设计院 Austenic-bainite Malleable steel and its preparation
AUPQ779900A0 (en) * 2000-05-26 2000-06-22 Bhp Steel (Jla) Pty Limited Hot rolling thin strip
AUPR047900A0 (en) * 2000-09-29 2000-10-26 Bhp Steel (Jla) Pty Limited A method of producing steel
RU2275273C2 (en) * 2000-09-29 2006-04-27 Ньюкор Корпорейшн Thin steel strip making method
WO2002033141A1 (en) * 2000-10-19 2002-04-25 Nkk Corporation Zinc-plated steel sheet and method for preparation thereof, and method for manufacturing formed article by press working
DE10062919A1 (en) * 2000-12-16 2002-06-27 Thyssenkrupp Stahl Ag Process for producing hot strip or sheet from a microalloyed steel
JP3927384B2 (en) * 2001-02-23 2007-06-06 新日本製鐵株式会社 Thin steel sheet for automobiles with excellent notch fatigue strength and method for producing the same
DE10128544C2 (en) * 2001-06-13 2003-06-05 Thyssenkrupp Stahl Ag High-strength, cold-workable sheet steel, process for its production and use of such a sheet
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WO2005095664A1 (en) * 2004-03-31 2005-10-13 Jfe Steel Corporation High-rigidity high-strength thin steel sheet and method for producing same

Also Published As

Publication number Publication date
CN101528969B (en) 2012-01-11
KR101458039B1 (en) 2014-11-03
WO2008052917A1 (en) 2008-05-08
EP1918402B1 (en) 2009-05-27
ES2325960T3 (en) 2009-09-25
US20090277546A1 (en) 2009-11-12
EP1918402A1 (en) 2008-05-07
KR20090090300A (en) 2009-08-25
JP5232793B2 (en) 2013-07-10
ATE432372T1 (en) 2009-06-15
PL1918402T3 (en) 2009-10-30
JP2010508433A (en) 2010-03-18
CN101528969A (en) 2009-09-09

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Legal Events

Date Code Title Description
8327 Change in the person/name/address of the patent owner

Owner name: THYSSENKRUPP STEEL EUROPE AG, 47166 DUISBURG, DE

8364 No opposition during term of opposition