FI20021188A0 - Hot rolled strip steel and its manufacturing process - Google Patents

Hot rolled strip steel and its manufacturing process

Info

Publication number
FI20021188A0
FI20021188A0 FI20021188A FI20021188A FI20021188A0 FI 20021188 A0 FI20021188 A0 FI 20021188A0 FI 20021188 A FI20021188 A FI 20021188A FI 20021188 A FI20021188 A FI 20021188A FI 20021188 A0 FI20021188 A0 FI 20021188A0
Authority
FI
Finland
Prior art keywords
mpa
manufacturing process
hot rolled
strip steel
rolled strip
Prior art date
Application number
FI20021188A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI20021188A (en
FI114484B (en
Inventor
Mikko Petteri Hemmilae
Reijo Arvi Liimatainen
Tommi Petteri Liimatainen
Original Assignee
Rautaruukki Oyj
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8564185&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FI20021188(A0) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Publication of FI20021188A0 publication Critical patent/FI20021188A0/en
Priority to FI20021188A priority Critical patent/FI114484B/en
Application filed by Rautaruukki Oyj filed Critical Rautaruukki Oyj
Priority to PT03396059T priority patent/PT1375694E/en
Priority to DE60300561T priority patent/DE60300561T3/en
Priority to SI200330048T priority patent/SI1375694T1/en
Priority to EP03396059A priority patent/EP1375694B2/en
Priority to ES03396059T priority patent/ES2238669T5/en
Priority to AT03396059T priority patent/ATE294256T1/en
Publication of FI20021188A publication Critical patent/FI20021188A/en
Publication of FI114484B publication Critical patent/FI114484B/en
Application granted granted 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
    • C21D8/0221—Modifying the physical properties 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
    • C22C38/02—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
    • C22C38/18—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
    • C22C38/28—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
    • C21D2211/002—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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Mechanical Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Coating With Molten Metal (AREA)
  • Sewing Machines And Sewing (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

A hot-rolled steel strip rolled to a final thickness that is at least 2 mm but no more than 12 mm, with a microstructure comprising at least 95 % martensite and/or bainite. The steel contains, in percentages by weight: 0.08 % - 0.16 % C, 0.5 % - 1.5% Cr and/or 0.1 % - 0.5 % Mo, ≤ 0.015 % S and ≤ 0.03 % P, 0.01 % - 0.08 % Al, as well as 0.6 % - 1.1 % Mn, and 0.1 % - 0.3 % Si, the rest being Fe and unavoidable impurities. The tensile strength of the steel strip is 700 Mpa - 1500 Mpa at a tensile elongation that has an A5 value of at least 6 %, and the yield strength is 600 Mpa - 1400 Mpa.
FI20021188A 2002-06-19 2002-06-19 Hot rolled strip steel and its manufacturing process FI114484B (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FI20021188A FI114484B (en) 2002-06-19 2002-06-19 Hot rolled strip steel and its manufacturing process
PT03396059T PT1375694E (en) 2002-06-19 2003-06-18 HOT-CALCULATED ACO BAND AND PROCESS FOR THEIR MANUFACTURE
AT03396059T ATE294256T1 (en) 2002-06-19 2003-06-18 METHOD FOR PRODUCING A HOT ROLLED STEEL STRIP
DE60300561T DE60300561T3 (en) 2002-06-19 2003-06-18 Process for producing a hot-rolled steel strip
SI200330048T SI1375694T1 (en) 2002-06-19 2003-06-18 Hot-rolled steel strip and method for manufacturing the same
EP03396059A EP1375694B2 (en) 2002-06-19 2003-06-18 Hot-rolled steel strip and method for manufacturing the same
ES03396059T ES2238669T5 (en) 2002-06-19 2003-06-18 HOT LAMINATED STEEL BAND AND PROCEDURE FOR MANUFACTURING.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20021188 2002-06-19
FI20021188A FI114484B (en) 2002-06-19 2002-06-19 Hot rolled strip steel and its manufacturing process

Publications (3)

Publication Number Publication Date
FI20021188A0 true FI20021188A0 (en) 2002-06-19
FI20021188A FI20021188A (en) 2003-12-20
FI114484B FI114484B (en) 2004-10-29

Family

ID=8564185

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20021188A FI114484B (en) 2002-06-19 2002-06-19 Hot rolled strip steel and its manufacturing process

Country Status (7)

Country Link
EP (1) EP1375694B2 (en)
AT (1) ATE294256T1 (en)
DE (1) DE60300561T3 (en)
ES (1) ES2238669T5 (en)
FI (1) FI114484B (en)
PT (1) PT1375694E (en)
SI (1) SI1375694T1 (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2872442B1 (en) * 2004-07-05 2006-09-15 Usinor Sa HIGH DENSITY WELDED ENERGY ASSEMBLIES OF METALLIC CONSTRUCTION STEELS HAVING EXCELLENT TENACITY IN THE MELT ZONE, AND METHOD FOR MANUFACTURING SUCH WELDED ASSEMBLIES
KR100952779B1 (en) * 2005-03-30 2010-04-14 가부시키가이샤 고베 세이코쇼 High-strength hot-rolled steel sheet excellent in chemical treatability
WO2007114261A1 (en) * 2006-03-31 2007-10-11 Kabushiki Kaisha Kobe Seiko Sho High-strength cold rolled steel sheet excelling in chemical treatability
US7846275B2 (en) 2006-05-24 2010-12-07 Kobe Steel, Ltd. High strength hot rolled steel sheet having excellent stretch flangeability and its production method
FI20095528A (en) * 2009-05-11 2010-11-12 Rautaruukki Oyj Process for producing a hot rolled strip steel product and 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
FI122313B (en) * 2010-06-07 2011-11-30 Rautaruukki Oyj Process for the production of hot rolled steel product and hot rolled steel
FI20106275A (en) * 2010-12-02 2012-06-03 Rautaruukki Oyj Ultra high strength structural steel and a process for producing ultra high strength structural steel
CN102134680A (en) * 2011-04-19 2011-07-27 首钢总公司 Ultrahigh strength steel with 960MPa of yield strength and production method thereof
CN102345048A (en) * 2011-06-28 2012-02-08 南阳汉冶特钢有限公司 Large-thickness boron steel SS400-B plate and production method thereof
EP2729590B1 (en) 2011-07-10 2015-10-28 Tata Steel IJmuiden BV Hot-rolled high-strength steel strip with improved haz-softening resistance and method of producing said steel
JP6094139B2 (en) * 2011-12-21 2017-03-15 Ｊｆｅスチール株式会社 High strength steel plate with excellent strength-elongation balance and method for producing the same
PL3097214T3 (en) 2014-01-24 2021-07-05 Rautaruukki Oyj Hot-rolled ultrahigh strength steel strip product
JP6778943B2 (en) 2014-12-19 2020-11-04 ニューコア・コーポレーション Hot-rolled lightweight martensite steel sheet and its manufacturing method
CN104831166B (en) * 2015-04-17 2016-08-17 河北钢铁股份有限公司邯郸分公司 A kind of strip steel production method improving cylinder steel rim of a cup shape uniformity
KR101977474B1 (en) 2017-08-09 2019-05-10 주식회사 포스코 Plated steel sheet having excellent surface quality, strength and ductility
KR102020435B1 (en) * 2017-12-22 2019-09-10 주식회사 포스코 High strength hot-rolled steel sheet having excellent bendability and low-temperature toughness and mathod for manufacturing thereof
KR102164078B1 (en) * 2018-12-18 2020-10-13 주식회사 포스코 High strength hot-rolled steel sheet having excellentworkability, and method for manufacturing the same
KR102237488B1 (en) 2019-12-16 2021-04-08 주식회사 포스코 High hardness steel sheet having excellent punching formability and manufacturing method for the same
EP4079911A4 (en) 2019-12-18 2022-12-28 POSCO Holdings Inc. Hot rolled steel sheet having excellent blanking properties and uniforminty, and manufacturing method thereof

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2076425B (en) * 1980-05-21 1984-04-04 British Steel Corp Dual-phase steel sheet
DE3440752A1 (en) * 1984-11-08 1986-05-22 Thyssen Stahl AG, 4100 Duisburg METHOD FOR PRODUCING HOT TAPE WITH A TWO-PHASE TEXTURE
JPS62180021A (en) * 1986-02-03 1987-08-07 Nisshin Steel Co Ltd Manufacture of high tension hot rolled steel plate superior in workability and baking hardenability
GB8621903D0 (en) * 1986-09-11 1986-10-15 British Steel Corp Production of steel
JPH06248341A (en) † 1993-02-23 1994-09-06 Sumitomo Metal Ind Ltd Production of steel with high strength and high toughness from non-heat-treated steel
JP3338499B2 (en) * 1993-03-16 2002-10-28 日新製鋼株式会社 Method for producing high-strength hot-rolled steel sheet with excellent workability
CZ6999A3 (en) * 1996-07-12 1999-10-13 Thyssen Stahl Ag Hot rolled steel band and process for producing thereof
FR2807068B1 (en) † 2000-03-29 2002-10-11 Usinor HOT ROLLED STEEL WITH VERY HIGH LIMIT OF ELASTICITY AND MECHANICAL STRENGTH FOR USE IN PARTICULAR FOR THE PRODUCTION OF PARTS OF MOTOR VEHICLES

Also Published As

Publication number Publication date
FI20021188A (en) 2003-12-20
DE60300561T2 (en) 2006-02-23
DE60300561T3 (en) 2011-06-09
ES2238669T5 (en) 2011-05-12
FI114484B (en) 2004-10-29
SI1375694T2 (en) 2005-10-31
EP1375694A1 (en) 2004-01-02
ATE294256T1 (en) 2005-05-15
PT1375694E (en) 2005-07-29
EP1375694B2 (en) 2010-11-17
DE60300561D1 (en) 2005-06-02
ES2238669T3 (en) 2005-09-01
EP1375694B1 (en) 2005-04-27
SI1375694T1 (en) 2011-03-31

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