ATE293175T1 - METHOD FOR PRODUCING HOT STRIP OR SHEET FROM A MICRO ALLOYED STEEL - Google Patents

METHOD FOR PRODUCING HOT STRIP OR SHEET FROM A MICRO ALLOYED STEEL

Info

Publication number
ATE293175T1
ATE293175T1 AT01270630T AT01270630T ATE293175T1 AT E293175 T1 ATE293175 T1 AT E293175T1 AT 01270630 T AT01270630 T AT 01270630T AT 01270630 T AT01270630 T AT 01270630T AT E293175 T1 ATE293175 T1 AT E293175T1
Authority
AT
Austria
Prior art keywords
hot strip
temperature
raw material
hot
sheet
Prior art date
Application number
AT01270630T
Other languages
German (de)
Inventor
Wilfried Haensch
Werner Scholten
Original Assignee
Thyssenkrupp Stahl 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 Stahl Ag filed Critical Thyssenkrupp Stahl Ag
Application granted granted Critical
Publication of ATE293175T1 publication Critical patent/ATE293175T1/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
    • C21D8/021—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 involving particular fabrication steps or treatments of ingots or slabs
    • 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
    • C21D8/0221—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 characterised by the working steps
    • C21D8/0226—Hot rolling
    • 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
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium

Landscapes

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

Abstract

The invention relates to a method for producing hot strip or hot plate, in which a microalloyed steel, which, apart from microalloying elements, comprises (in weight %) C: 0.05-0.12%; Si:0.2-0.5%; Mn:1.5-2.2 %; Al:0.02-0.05%; P:<=0.025%; S:<=0.01%; with the remainder being iron and unavoidable impurities, is cast to form a raw material such as slabs, blooms or thin slabs; in which the raw material is heated to a temperature of 1300-1350° C.; in which the heated raw material is rough rolled at a degree of deformation of 36% to 43%; in which the rough rolled raw material is thermomechanically hot rolled at a final rolling temperature which exceeds the Ac3 temperature so as to form a hot strip; in which the hot strip is cooled at a cooling rate of at least 15° C./s to a coiling temperature of at least 590° C. and at most 630° C. at which temperature the cooled hot strip is finally coiled. With such a method, hot strip which is of particularly high strength even at larger thicknesses can be produced economically.
AT01270630T 2000-12-16 2001-12-15 METHOD FOR PRODUCING HOT STRIP OR SHEET FROM A MICRO ALLOYED STEEL ATE293175T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10062919A DE10062919A1 (en) 2000-12-16 2000-12-16 Process for producing hot strip or sheet from a microalloyed steel
PCT/EP2001/014829 WO2002048410A1 (en) 2000-12-16 2001-12-15 Method for the production of hot strip or sheet from a micro-alloyed steel

Publications (1)

Publication Number Publication Date
ATE293175T1 true ATE293175T1 (en) 2005-04-15

Family

ID=7667534

Family Applications (1)

Application Number Title Priority Date Filing Date
AT01270630T ATE293175T1 (en) 2000-12-16 2001-12-15 METHOD FOR PRODUCING HOT STRIP OR SHEET FROM A MICRO ALLOYED STEEL

Country Status (6)

Country Link
US (1) US20040040633A1 (en)
EP (1) EP1453984B8 (en)
AT (1) ATE293175T1 (en)
DE (2) DE10062919A1 (en)
ES (1) ES2240337T3 (en)
WO (1) WO2002048410A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1396550A1 (en) * 2002-08-28 2004-03-10 ThyssenKrupp Stahl AG Method for manufacturing hot strip
ATE432372T1 (en) * 2006-10-30 2009-06-15 Thyssenkrupp Steel Ag METHOD FOR PRODUCING FLAT STEEL PRODUCTS FROM A STEEL FORMING A COMPLEX PHASE STRUCTURE
ATE432376T1 (en) * 2006-10-30 2009-06-15 Thyssenkrupp Steel Ag METHOD FOR PRODUCING FLAT STEEL PRODUCTS FROM A MULTIPHASE STEEL MICRO-ALLOYED WITH BORON
FI20095528A7 (en) * 2009-05-11 2010-11-12 Rautaruukki Oyj Method for manufacturing a hot-rolled strip steel product and a hot-rolled strip steel product
FI122143B (en) * 2009-10-23 2011-09-15 Rautaruukki Oyj Procedure for the manufacture of a high-strength galvanized profile product and profile product
JP5365673B2 (en) 2011-09-29 2013-12-11 Ｊｆｅスチール株式会社 Hot rolled steel sheet with excellent material uniformity and method for producing the same
EP2811046B1 (en) 2012-01-31 2020-01-15 JFE Steel Corporation Hot-rolled steel sheet for generator rim and method for manufacturing same
DE112015005690T8 (en) 2014-12-19 2018-04-19 Nucor Corporation Hot rolled martensitic lightweight sheet steel and method of making the same
CN111519105B (en) * 2020-05-12 2021-06-15 首钢集团有限公司 A kind of automobile component steel and preparation method thereof, and automobile component

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2133744B2 (en) * 1971-07-07 1973-07-12 August Thyssen-Hütte AG, 4100 Duisburg THE USE OF A FULLY KILLED STEEL FOR ARTICLES FROM HOT-ROLLED STRIP
CA1003311A (en) * 1972-12-31 1977-01-11 Hiroshi Takechi High tensile strength structural steel and the manufacture thereof
JPS58136719A (en) * 1982-02-05 1983-08-13 Nippon Kokan Kk <Nkk> Manufacturing method of high-strength hot-rolled steel sheet
JPS61281814A (en) * 1985-06-06 1986-12-12 Kobe Steel Ltd Production of high-strength hot rolled steel sheet having low sensitivity to bauschinger effect
JPS63223130A (en) * 1987-03-13 1988-09-16 Kawasaki Steel Corp Manufacture of high-tensile hot-rolled steel plate excellent in workability
JPH059572A (en) * 1991-07-08 1993-01-19 Sumitomo Metal Ind Ltd Manufacturing method of hot rolled steel sheet with excellent workability
FR2688009B1 (en) * 1992-02-28 1994-05-27 Lorraine Laminage PROCESS FOR THE PREPARATION OF A STEEL SHEET AND STEEL SHEET OBTAINED BY THIS PROCESS.
JP3767132B2 (en) * 1997-11-11 2006-04-19 Ｊｆｅスチール株式会社 Method for producing high-strength hot-rolled steel sheet having high ductility and excellent material uniformity

Also Published As

Publication number Publication date
EP1453984B1 (en) 2005-04-13
DE10062919A1 (en) 2002-06-27
EP1453984A1 (en) 2004-09-08
ES2240337T3 (en) 2005-10-16
DE50105924D1 (en) 2005-05-19
EP1453984B8 (en) 2005-07-27
WO2002048410A1 (en) 2002-06-20
US20040040633A1 (en) 2004-03-04

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