ATE432375T1 - METHOD FOR PRODUCING FLAT STEEL PRODUCTS FROM A MULTIPHASE STEEL ALLOYED WITH SILICON - Google Patents

METHOD FOR PRODUCING FLAT STEEL PRODUCTS FROM A MULTIPHASE STEEL ALLOYED WITH SILICON

Info

Publication number
ATE432375T1
ATE432375T1 AT06123141T AT06123141T ATE432375T1 AT E432375 T1 ATE432375 T1 AT E432375T1 AT 06123141 T AT06123141 T AT 06123141T AT 06123141 T AT06123141 T AT 06123141T AT E432375 T1 ATE432375 T1 AT E432375T1
Authority
AT
Austria
Prior art keywords
hot
rolled strip
strip
rolled
steel
Prior art date
Application number
AT06123141T
Other languages
German (de)
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
Application granted granted Critical
Publication of ATE432375T1 publication Critical patent/ATE432375T1/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 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
    • C21D8/0421—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
    • C21D8/0436—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 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
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • 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
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
    • 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
    • C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
    • 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
    • C21D2211/005—Ferrite
    • 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 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 greater than 1.5 mm in a continuous process at a final hot-rolling temperature at 850-1000[deg] C, and coiling the hot-rolled strip at a coiling temperature of 450-700[deg] C to obtain a hot-rolled strip, which has a minimum tensile strength R m of 880 MPa and a minimum breaking elongation A 8 0 of 5%. The steel forms a complex phase structure. 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 greater than 1.5 mm in a continuous process at a final hot-rolling temperature at 850-1000[deg] C, and coiling the hot-rolled strip at a coiling temperature of 450-700[deg] C to obtain a hot-rolled strip, which has a minimum tensile strength R m of 880 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 750-805[deg] C to obtain a cold-rolled strip, which has a minimum tensile strength of more than 800 MPa and a minimum breaking elongation A 5 0 of 5%. The coiling temperature of the cold-rolled strip is 810-850[deg] C. The cold- or hot-rolled strip is provided with a metallic coating, which is galvanizing. The coiling temperature is 550-700[deg] C, when a minimum breaking elongation A 8 0 of the obtained hot-rolled strip is 10%. The hot-rolled temperature is 900-1000[deg] C and the coiling temperature is 450-550[deg] C, when a minimum tensile strength R m of the obtained hot-rolled strip is 1000 MPa.
AT06123141T 2006-10-30 2006-10-30 METHOD FOR PRODUCING FLAT STEEL PRODUCTS FROM A MULTIPHASE STEEL ALLOYED WITH SILICON ATE432375T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06123141A EP1918405B1 (en) 2006-10-30 2006-10-30 Process for manufacturing steel flat products from silicon alloyed multi phase steel

Publications (1)

Publication Number Publication Date
ATE432375T1 true ATE432375T1 (en) 2009-06-15

Family

ID=37781961

Family Applications (1)

Application Number Title Priority Date Filing Date
AT06123141T ATE432375T1 (en) 2006-10-30 2006-10-30 METHOD FOR PRODUCING FLAT STEEL PRODUCTS FROM A MULTIPHASE STEEL ALLOYED WITH SILICON

Country Status (10)

Country Link
US (1) US20100065161A1 (en)
EP (1) EP1918405B1 (en)
JP (1) JP5350255B2 (en)
KR (1) KR101461585B1 (en)
CN (1) CN101528968B (en)
AT (1) ATE432375T1 (en)
DE (1) DE502006003833D1 (en)
ES (1) ES2325964T3 (en)
PL (1) PL1918405T3 (en)
WO (1) WO2008052921A1 (en)

Families Citing this family (7)

* 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
WO2011100798A1 (en) 2010-02-20 2011-08-25 Bluescope Steel Limited Nitriding of niobium steel and product made thereby
EP2439290B1 (en) 2010-10-05 2013-11-27 ThyssenKrupp Steel Europe AG Multiphase steel, cold rolled flat product produced from this multiphase steel and method for producing same
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
KR102596515B1 (en) 2014-12-19 2023-11-01 누코 코포레이션 Hot rolled light-gauge martensitic steel sheet and method for making the same
IT201700010994A1 (en) * 2017-02-01 2018-08-01 Nova Ferr S R L Cutting blade for a lawn mower.

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5470529A (en) * 1994-03-08 1995-11-28 Sumitomo Metal Industries, Ltd. High tensile strength steel sheet having improved formability
HU220900B1 (en) * 1996-07-12 2002-06-29 Thyssen Stahl Ag Hot-rolled steel strip and method of making it
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
EP0969112B2 (en) * 1997-03-17 2017-03-08 Nippon Steel & Sumitomo Metal Corporation A method of producing dual-phase high-strength steel sheets having high impact energy absorption properties
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
AUPQ779900A0 (en) * 2000-05-26 2000-06-22 Bhp Steel (Jla) Pty Limited Hot rolling thin strip
CN1269986C (en) * 2000-10-19 2006-08-16 杰富意钢铁株式会社 Zinc-plated steel sheet and method for preparation thereof, and method for manufacturing formed article by press working
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
US6878920B2 (en) * 2002-06-28 2005-04-12 Intel Corporation Optical receiver circuit, method, and system
EP1396550A1 (en) * 2002-08-28 2004-03-10 ThyssenKrupp Stahl AG Method for manufacturing hot strip
ATE316157T1 (en) * 2002-09-11 2006-02-15 Thyssenkrupp Steel Ag FERRITIC/MARTENSITIC STEEL WITH HIGH STRENGTH AND VERY FINE STRUCTURE
JP4299560B2 (en) * 2003-03-20 2009-07-22 日新製鋼株式会社 Method for producing high-strength galvannealed steel sheet with excellent workability
JP4317384B2 (en) * 2003-04-28 2009-08-19 新日本製鐵株式会社 High-strength galvanized steel sheet with excellent hydrogen embrittlement resistance, weldability and hole expansibility, and its manufacturing method
FR2855184B1 (en) * 2003-05-19 2006-05-19 Usinor COLD LAMINATED, ALUMINATED, HIGH STRENGTH, DUAL PHASE STEEL FOR TELEVISION ANTI-IMPLOSION BELT, AND METHOD FOR MANUFACTURING THE SAME
CA2546009A1 (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
DE502006003833D1 (en) 2009-07-09
EP1918405A1 (en) 2008-05-07
CN101528968A (en) 2009-09-09
CN101528968B (en) 2013-03-06
ES2325964T3 (en) 2009-09-25
JP2010508437A (en) 2010-03-18
JP5350255B2 (en) 2013-11-27
WO2008052921A1 (en) 2008-05-08
EP1918405B1 (en) 2009-05-27
PL1918405T3 (en) 2009-10-30
US20100065161A1 (en) 2010-03-18
KR20090090303A (en) 2009-08-25
KR101461585B1 (en) 2015-02-23

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