PL1918406T3 - Process for manufacturing steel flat products from boron microalloyed multi phase steel - Google Patents

Process for manufacturing steel flat products from boron microalloyed multi phase steel

Info

Publication number
PL1918406T3
PL1918406T3 PL06123139T PL06123139T PL1918406T3 PL 1918406 T3 PL1918406 T3 PL 1918406T3 PL 06123139 T PL06123139 T PL 06123139T PL 06123139 T PL06123139 T PL 06123139T PL 1918406 T3 PL1918406 T3 PL 1918406T3
Authority
PL
Poland
Prior art keywords
hot
rolled strip
rolled
strip
temperature
Prior art date
Application number
PL06123139T
Other languages
Polish (pl)
Inventor
Brigitte Hammer
Thomas Heller
Johann Wilhelm Schmitz
Jochen Wans
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 PL1918406T3 publication Critical patent/PL1918406T3/en

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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/04—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for drawing, e.g. for deep-drawing
    • C21D8/041—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for drawing, e.g. 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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/04—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for drawing, e.g. for deep-drawing
    • C21D8/0421—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for drawing, e.g. for deep-drawing characterised by the working steps
    • C21D8/0426—Hot rolling
    • 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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/04—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for drawing, e.g. for deep-drawing
    • C21D8/0421—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for drawing, e.g. for deep-drawing characterised by the working steps
    • C21D8/0436—Cold 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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/04—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for drawing, e.g. for deep-drawing
    • C21D8/0447—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for drawing, e.g. 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
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • 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
    • 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
    • C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
    • 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
    • C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/008—Martensite

Landscapes

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

Abstract

The method for the production of flat steel products useful for 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 a final hot-rolling temperature at 800-1100[deg] C and coiling the hot-rolled strip at a coiling temperature of 250-570[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 5%. The method for the production of flat steel products useful for 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 a final hot-rolling temperature of 800-1100[deg] C and coiling the hot-rolled strip at a coiling temperature of 250-570[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 5%. 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 5 0 of 10%. The cold or hot-rolled strip is provided with a metallic coating, which is galvanizing. The hot-rolled temperature is 900-1020[deg] C and the coiling temperature is 420-490[deg] C, when the minimum breaking elongation A 8 0 of the obtained hot-rolled strip is 10%. The hot-rolled temperature is 900-1100[deg] C and the coiling temperature is 450-570[deg] C, when the minimum tensile strength of the obtained hot-rolled strip is 1000 MPa.
PL06123139T 2006-10-30 2006-10-30 Process for manufacturing steel flat products from boron microalloyed multi phase steel PL1918406T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06123139A EP1918406B1 (en) 2006-10-30 2006-10-30 Process for manufacturing steel flat products from boron microalloyed multi phase steel

Publications (1)

Publication Number Publication Date
PL1918406T3 true PL1918406T3 (en) 2009-10-30

Family

ID=37782637

Family Applications (1)

Application Number Title Priority Date Filing Date
PL06123139T PL1918406T3 (en) 2006-10-30 2006-10-30 Process for manufacturing steel flat products from boron microalloyed multi phase steel

Country Status (10)

Country Link
US (1) US20100043513A1 (en)
EP (1) EP1918406B1 (en)
JP (1) JP5350253B2 (en)
KR (1) KR101461583B1 (en)
CN (1) CN101528970B (en)
AT (1) ATE432376T1 (en)
DE (1) DE502006003835D1 (en)
ES (1) ES2325962T3 (en)
PL (1) PL1918406T3 (en)
WO (1) WO2008052919A1 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10071416B2 (en) * 2005-10-20 2018-09-11 Nucor Corporation High strength thin cast strip product and method for making the same
EP2209926B1 (en) 2007-10-10 2019-08-07 Nucor Corporation Complex metallographic structured steel and method of manufacturing same
US20110277886A1 (en) 2010-02-20 2011-11-17 Nucor Corporation Nitriding of niobium steel and product made thereby
DE102011117572A1 (en) * 2011-01-26 2012-08-16 Salzgitter Flachstahl Gmbh High-strength multiphase steel with excellent forming properties
EP2489748B1 (en) * 2011-02-18 2017-12-13 ThyssenKrupp Steel Europe AG Hot-rolled steel surface product produced from a complex phase steel and method for the manufacture
WO2013182622A1 (en) * 2012-06-05 2013-12-12 Thyssenkrupp Steel Europe Ag Steel, sheet steel product and process for producing a sheet steel product
CN102766821B (en) * 2012-07-31 2014-10-29 宝山钢铁股份有限公司 High-strength thick steel plate for large heat input welding
JP5942712B2 (en) * 2012-09-06 2016-06-29 新日鐵住金株式会社 Scum weir, thin slab manufacturing method, thin slab manufacturing equipment
AT512399B1 (en) 2012-09-10 2013-08-15 Siemens Vai Metals Tech Gmbh Method for producing a microalloyed tubular steel in a cast-rolled composite plant and microalloyed tubular steel
EP2759614B1 (en) 2013-01-25 2019-01-02 ThyssenKrupp Steel Europe AG Method for generating a flat steel product with an amorphous, semi-amorphous or fine crystalline structure and flat steel product with such structures
DE102013013067A1 (en) 2013-07-30 2015-02-05 Salzgitter Flachstahl Gmbh Silicon-containing microalloyed high-strength multiphase steel having a minimum tensile strength of 750 MPa and improved properties and processes for producing a strip of this steel
EP2924141B1 (en) 2014-03-25 2017-11-15 ThyssenKrupp Steel Europe AG Cold rolled steel flat product and method for its production
CN105950984B (en) * 2016-05-06 2018-03-27 武汉钢铁有限公司 Tensile strength 650MPa level hot rolling Multiphase Steels and its production method
DE102017209982A1 (en) * 2017-06-13 2018-12-13 Thyssenkrupp Ag High strength steel sheet with improved formability
CN113481436A (en) * 2021-06-29 2021-10-08 鞍钢股份有限公司 800 MPa-grade hot-rolled complex phase steel and production method thereof
CN113584270B (en) * 2021-08-09 2023-03-24 新疆八一钢铁股份有限公司 Process for improving processability of steel for barrel industry

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US5470529A (en) * 1994-03-08 1995-11-28 Sumitomo Metal Industries, Ltd. High tensile strength steel sheet having improved formability
CZ6999A3 (en) * 1996-07-12 1999-10-13 Thyssen Stahl Ag Hot rolled steel strip and method of its production
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
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
KR100419080B1 (en) * 1999-09-28 2004-02-18 제이에프이 엔지니어링 가부시키가이샤 Hot-rolled steel sheet having high tensile strength and method for production thereof
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DE10161465C1 (en) * 2001-12-13 2003-02-13 Thyssenkrupp Stahl Ag Production of hot strip used in vehicle chassis comprises casting steel into pre-material, hot rolling to form hot strip, cooling in first cooling step, and cooling in second cooling step after pause to coiling temperature
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Also Published As

Publication number Publication date
JP2010508435A (en) 2010-03-18
JP5350253B2 (en) 2013-11-27
WO2008052919A1 (en) 2008-05-08
DE502006003835D1 (en) 2009-07-09
KR20090084815A (en) 2009-08-05
EP1918406B1 (en) 2009-05-27
ES2325962T3 (en) 2009-09-25
ATE432376T1 (en) 2009-06-15
US20100043513A1 (en) 2010-02-25
EP1918406A1 (en) 2008-05-07
KR101461583B1 (en) 2014-11-13
CN101528970A (en) 2009-09-09
CN101528970B (en) 2012-10-03

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