PL1918403T3 - Process for manufacturing steel flat products from a steel forming martensitic structure - Google Patents

Process for manufacturing steel flat products from a steel forming martensitic structure

Info

Publication number
PL1918403T3
PL1918403T3 PL06123137T PL06123137T PL1918403T3 PL 1918403 T3 PL1918403 T3 PL 1918403T3 PL 06123137 T PL06123137 T PL 06123137T PL 06123137 T PL06123137 T PL 06123137T PL 1918403 T3 PL1918403 T3 PL 1918403T3
Authority
PL
Poland
Prior art keywords
hot
rolled strip
strip
rolled
thickness
Prior art date
Application number
PL06123137T
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 PL1918403T3 publication Critical patent/PL1918403T3/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
    • 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
    • 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
    • C21D8/0426—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 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
    • C22C38/02—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
    • C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
    • 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)
  • Heat Treatment Of Steel (AREA)
  • Continuous Casting (AREA)

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 900-1050[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 1400 MPa and a minimum breaking elongation A 8 0 of 5%. 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 900-1050[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 1400 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 600 MPa and a minimum breaking elongation A 8 0 of 15%. The cold- or hot-rolled strip is provided with a metallic coating, which is galvanizing.
PL06123137T 2006-10-30 2006-10-30 Process for manufacturing steel flat products from a steel forming martensitic structure PL1918403T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06123137A EP1918403B1 (en) 2006-10-30 2006-10-30 Process for manufacturing steel flat products from a steel forming martensitic structure

Publications (1)

Publication Number Publication Date
PL1918403T3 true PL1918403T3 (en) 2009-10-30

Family

ID=37733845

Family Applications (1)

Application Number Title Priority Date Filing Date
PL06123137T PL1918403T3 (en) 2006-10-30 2006-10-30 Process for manufacturing steel flat products from a steel forming martensitic structure

Country Status (10)

Country Link
US (1) US20100096047A1 (en)
EP (1) EP1918403B1 (en)
JP (1) JP5350252B2 (en)
KR (1) KR101458577B1 (en)
CN (1) CN101528967B (en)
AT (1) ATE432373T1 (en)
DE (1) DE502006003831D1 (en)
ES (1) ES2325961T3 (en)
PL (1) PL1918403T3 (en)
WO (1) WO2008052918A1 (en)

Families Citing this family (12)

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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
WO2010026260A2 (en) * 2008-09-08 2010-03-11 Bhp Billiton Aluminium Technologies Limited Thermomagnetic device
US20110277886A1 (en) 2010-02-20 2011-11-17 Nucor Corporation Nitriding of niobium steel and product made thereby
WO2011135700A1 (en) * 2010-04-28 2011-11-03 住友金属工業株式会社 Hot rolled dual phase steel sheet having excellent dynamic strength, and method for producing same
CN101845593A (en) * 2010-05-19 2010-09-29 首钢总公司 Steel for 20 control Cr nuclear power and production method thereof
EP2690183B1 (en) * 2012-07-27 2017-06-28 ThyssenKrupp Steel Europe AG Hot-rolled steel flat product and method for its production
US9994942B2 (en) 2012-08-21 2018-06-12 Nippon Steel & Sumitomo Metal Corporation Steel material
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
RU2499060C1 (en) * 2012-09-20 2013-11-20 Открытое акционерное общество "Северсталь" (ОАО "Северсталь") Production method of cold-rolled steel for deep drawing
KR101543867B1 (en) * 2013-11-14 2015-08-11 주식회사 포스코 Method for manufacturing martensitic stainless steel sheet using twin roll casting roll
KR20150055788A (en) 2013-11-14 2015-05-22 주식회사 포스코 Twin roll casting roll of strip casting and method for manufacturing thereof
DE112015005690T8 (en) * 2014-12-19 2018-04-19 Nucor Corporation Hot rolled martensitic lightweight sheet steel and method of making the same

Family Cites Families (16)

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Publication number Priority date Publication date Assignee Title
JPS61189845A (en) * 1985-02-18 1986-08-23 Nippon Kokan Kk <Nkk> Method for manufacturing thin slab slabs
US5470529A (en) * 1994-03-08 1995-11-28 Sumitomo Metal Industries, Ltd. High tensile strength steel sheet having improved formability
JP2792834B2 (en) * 1995-04-18 1998-09-03 新日本製鐵株式会社 Method for producing carbon steel thin steel strip having strength of 500 MPa or less from thin cast strip
HU220900B1 (en) * 1996-07-12 2002-06-29 Thyssen Stahl Ag Hot-rolled steel strip and method of making it
JP2000176508A (en) * 1998-12-16 2000-06-27 Ishikawajima Harima Heavy Ind Co Ltd High strength steel plate continuous manufacturing equipment
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
AU9150501A (en) * 2000-09-29 2002-04-08 Ishikawajima Harima Heavy Ind Production of thin steel strip
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
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
EP1398390B1 (en) * 2002-09-11 2006-01-18 ThyssenKrupp Steel AG Steel with a very fine ferritic and martensitic microstructure having a high tensile strength
EP1431406A1 (en) * 2002-12-20 2004-06-23 Sidmar N.V. A steel composition for the production of cold rolled multiphase steel products
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
JP4510488B2 (en) * 2004-03-11 2010-07-21 新日本製鐵株式会社 Hot-dip galvanized composite high-strength steel sheet excellent in formability and hole expansibility and method for producing 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
ATE432373T1 (en) 2009-06-15
JP5350252B2 (en) 2013-11-27
JP2010508434A (en) 2010-03-18
DE502006003831D1 (en) 2009-07-09
EP1918403B1 (en) 2009-05-27
CN101528967A (en) 2009-09-09
US20100096047A1 (en) 2010-04-22
ES2325961T3 (en) 2009-09-25
CN101528967B (en) 2011-06-15
EP1918403A1 (en) 2008-05-07
KR20090090301A (en) 2009-08-25
KR101458577B1 (en) 2014-11-07
WO2008052918A1 (en) 2008-05-08

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