EP2119803A4 - Thick high-strength steel plate and process for producing the same - Google Patents

Thick high-strength steel plate and process for producing the same

Info

Publication number
EP2119803A4
EP2119803A4 EP08721186.8A EP08721186A EP2119803A4 EP 2119803 A4 EP2119803 A4 EP 2119803A4 EP 08721186 A EP08721186 A EP 08721186A EP 2119803 A4 EP2119803 A4 EP 2119803A4
Authority
EP
European Patent Office
Prior art keywords
producing
same
steel plate
strength steel
thick high
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP08721186.8A
Other languages
German (de)
French (fr)
Other versions
EP2119803A1 (en
Inventor
Hiroyuki Shirahata
Masaaki Fujioka
Akihiko Kojima
Yoichi Tanaka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Nippon Steel and Sumitomo Metal Corp
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 Nippon Steel and Sumitomo Metal Corp filed Critical Nippon Steel and Sumitomo Metal Corp
Publication of EP2119803A1 publication Critical patent/EP2119803A1/en
Publication of EP2119803A4 publication Critical patent/EP2119803A4/en
Withdrawn legal-status Critical Current

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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/001—Heat treatment of ferrous alloys containing Ni
    • 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
    • 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
    • C21D8/021—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular fabrication or treatment of ingot or slab
    • 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
    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • 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
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • 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
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • 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
    • C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • 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
    • C22C38/06—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
    • C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
    • 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
    • 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
    • C21D2201/00—Treatment for obtaining particular effects
    • C21D2201/05—Grain orientation
    • 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
    • C21D2211/005—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
    • C21D2211/009—Pearlite

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)
EP08721186.8A 2007-03-05 2008-03-03 Thick high-strength steel plate and process for producing the same Withdrawn EP2119803A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007054279 2007-03-05
PCT/JP2008/053766 WO2008108333A1 (en) 2007-03-05 2008-03-03 Thick high-strength steel plate and process for producing the same

Publications (2)

Publication Number Publication Date
EP2119803A1 EP2119803A1 (en) 2009-11-18
EP2119803A4 true EP2119803A4 (en) 2016-07-20

Family

ID=39738210

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08721186.8A Withdrawn EP2119803A4 (en) 2007-03-05 2008-03-03 Thick high-strength steel plate and process for producing the same

Country Status (7)

Country Link
EP (1) EP2119803A4 (en)
JP (1) JP4309946B2 (en)
KR (1) KR101024709B1 (en)
CN (1) CN101622370B (en)
BR (1) BRPI0808347B1 (en)
TW (1) TWI335355B (en)
WO (1) WO2008108333A1 (en)

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102209607B (en) * 2009-01-14 2014-04-30 新日铁住金株式会社 Welding structure with excellent resistance to brittle crack propagation
CN102271861B (en) * 2009-01-14 2013-03-20 新日铁住金株式会社 Weld structure having brittle fracture arresting characterstics
JP5470904B2 (en) * 2009-02-25 2014-04-16 Ｊｆｅスチール株式会社 TS of 570 MPa or more, total elongation of 25% or more, and fatigue crack propagation rate at ΔK = 15 MPa√m of 8.75 × 10 −9 m / cycle or less, excellent in total elongation and fatigue crack propagation resistance, plate thickness of 20 mm or less Of manufacturing thick steel plate
KR101176612B1 (en) 2009-06-11 2012-08-23 신닛뽄세이테쯔 카부시키카이샤 Process for producing thick high-strength steel plate with excellent toughness of heat-affected zone in high heat input welding and thick high-strength steel plate with excellent toughness of heat-affected zone in high heat input welding
CN102549186B (en) * 2009-10-08 2014-08-27 新日铁住金株式会社 High-strength steel pipe, steel plate for high-strength steel pipe, and processes for producing these
JP5423309B2 (en) * 2009-10-21 2014-02-19 新日鐵住金株式会社 Thick steel plate for offshore structures and manufacturing method thereof
CN101701326B (en) * 2009-10-28 2011-07-20 南京钢铁股份有限公司 High strength and high toughness ship plate steel with thick specification and production method thereof
WO2012008056A1 (en) * 2010-07-14 2012-01-19 新日本製鐵株式会社 Weld structure having resistance to brittle crack propagation
JP5029749B2 (en) * 2010-09-17 2012-09-19 Ｊｆｅスチール株式会社 High-strength hot-rolled steel sheet excellent in bending workability and its manufacturing method
JP2012188747A (en) * 2011-02-24 2012-10-04 Kobe Steel Ltd Forged steel material for nuclear power generation devices, and welded structure for nuclear power generation devices
CN102691006B (en) * 2011-03-23 2013-12-25 宝山钢铁股份有限公司 High tempering parameter SR embrittlement resistant cryogenic nickel steel and manufacture method thereof
MX2013011750A (en) * 2011-04-13 2013-11-04 Nippon Steel & Sumitomo Metal Corp High-strength cold-rolled steel sheet with excellent local formability, and manufacturing method therefor.
KR101278004B1 (en) * 2011-06-28 2013-06-27 현대제철 주식회사 High strength steel plate and method of manufacturing the steel plate
KR101273936B1 (en) * 2011-08-12 2013-06-11 한국과학기술연구원 Ferritic stainless steel with excellent oxidation resistance, manufacturing method thereof and fuel cell interconnector using the same
CN102560250A (en) * 2011-11-25 2012-07-11 宝山钢铁股份有限公司 Ultralow-carbon bainite steel plate and manufacturing method thereof
JP5838801B2 (en) * 2011-12-27 2016-01-06 Ｊｆｅスチール株式会社 Thick steel plate and method for manufacturing thick steel plate
KR101357543B1 (en) * 2012-01-31 2014-02-05 현대제철 주식회사 Method for producing hot rolled steel sheet having high formability
CN104114731B (en) * 2012-02-17 2016-03-02 新日铁住金株式会社 Steel plate, plated steel sheet and their manufacture method
KR101728362B1 (en) * 2012-08-06 2017-04-19 제이에프이 스틸 가부시키가이샤 Method for manufacturing thick steel plate having excellent long brittle crack arrestability and thick steel plate
JP5598618B1 (en) * 2013-03-26 2014-10-01 Ｊｆｅスチール株式会社 High strength thick steel plate for high heat input welding with excellent brittle crack propagation stopping characteristics and method for producing the same
KR101320222B1 (en) * 2013-04-30 2013-10-21 현대제철 주식회사 High strength steel plate and method of manufacturing the steel plate
TWI498174B (en) * 2013-05-01 2015-09-01 China Steel Corp Method for Reducing Surface Defects of High Hardness Steel
WO2015022729A1 (en) * 2013-08-13 2015-02-19 新日鐵住金株式会社 Steel plate
WO2016105062A1 (en) * 2014-12-24 2016-06-30 주식회사 포스코 High-strength steel having excellent resistance to brittle crack propagation, and production method therefor
JP6475837B2 (en) * 2014-12-24 2019-02-27 ポスコＰｏｓｃｏ High strength steel material excellent in brittle crack propagation resistance and manufacturing method thereof
CN107109590A (en) * 2014-12-24 2017-08-29 Posco公司 The high strength steel and its manufacture method for the resistant expansibility excellent of resistance to brittle crack
KR101657827B1 (en) * 2014-12-24 2016-09-20 주식회사 포스코 Steel having excellent in resistibility of brittle crack arrestbility and manufacturing method thereof
CA2976750C (en) 2015-03-31 2020-08-18 Jfe Steel Corporation High-strength, high-toughness steel plate, and method for producing the same
CN107532253B (en) 2015-03-31 2019-06-21 杰富意钢铁株式会社 High intensity/ductility steel plate and its manufacturing method
JP6766642B2 (en) * 2016-02-25 2020-10-14 日本製鉄株式会社 Steel sheet with excellent brittle crack propagation stop characteristics and its manufacturing method
JP6682967B2 (en) * 2016-04-06 2020-04-15 日本製鉄株式会社 Steel plate and method of manufacturing the same
JP6911575B2 (en) * 2016-06-30 2021-07-28 日本製鉄株式会社 Steel sheet with excellent brittle crack propagation stop characteristics and its manufacturing method
JP6776826B2 (en) * 2016-11-11 2020-10-28 日本製鉄株式会社 Steel sheet with excellent brittle crack propagation stop characteristics and its manufacturing method
JP6988836B2 (en) * 2019-01-28 2022-01-05 Ｊｆｅスチール株式会社 Ultra-low yield ratio high-strength thick steel sheet and its manufacturing method
JP7330862B2 (en) * 2019-11-01 2023-08-22 株式会社神戸製鋼所 High-strength steel sheet with excellent low-temperature toughness of base material and joint, and manufacturing method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1026275A1 (en) * 1998-07-31 2000-08-09 Nippon Steel Corporation High-strength, high-toughness rolled shape steel and production method thereof
JP2002241891A (en) * 2000-12-15 2002-08-28 Kawasaki Steel Corp Structural steel having excellent brittle crack propagation stopping characteristic and fatigue crack propagation characteristic after plastic deformation and manufacturing method thereof
JP2005097694A (en) * 2003-09-26 2005-04-14 Jfe Steel Kk Method for manufacturing non-heat-treated high-strength thick steel plate superior in brittle crack arrestability
CA2601052A1 (en) * 2005-03-17 2006-09-21 Sumitomo Metal Industries, Ltd. High-tensile steel plate, welded steel pipe or tube, and methods of manufacturing thereof

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JPS5947323A (en) 1982-09-10 1984-03-17 Nippon Steel Corp Production of high tension steel having excellent toughness in weld zone and property for stopping propagation of brittle fracture
JPH064903B2 (en) 1985-04-09 1994-01-19 新日本製鐵株式会社 Steel plate with excellent brittle crack propagation arresting property and its manufacturing method
JP3376195B2 (en) * 1995-12-26 2003-02-10 川崎製鉄株式会社 Method for producing high-strength thick steel sheet with excellent in-plate homogeneity and having both brittle crack propagation arrestability and weldability
JP2003221619A (en) 2002-01-31 2003-08-08 Kobe Steel Ltd Method for manufacturing thick steel plate superior in arresting characteristics and ductile-fracture property
JP3869747B2 (en) * 2002-04-09 2007-01-17 新日本製鐵株式会社 High-strength steel plate, high-strength steel pipe and manufacturing method excellent in deformation performance
JP4687122B2 (en) * 2004-01-30 2011-05-25 Ｊｆｅスチール株式会社 Manufacturing method of steel with excellent strength uniformity in the thickness direction and fatigue crack propagation characteristics
JP4670371B2 (en) * 2004-01-30 2011-04-13 Ｊｆｅスチール株式会社 Manufacturing method of steel with excellent strength uniformity in the thickness direction and fatigue crack propagation characteristics
CN100350065C (en) * 2004-12-08 2007-11-21 鞍钢股份有限公司 High tensile strength low carbon bainite thick steel plate and its production method
JP4679300B2 (en) 2005-08-24 2011-04-27 花王株式会社 Absorbent of absorbent articles
JP2009293189A (en) 2008-06-02 2009-12-17 Tokai Rika Co Ltd Cylinder device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1026275A1 (en) * 1998-07-31 2000-08-09 Nippon Steel Corporation High-strength, high-toughness rolled shape steel and production method thereof
JP2002241891A (en) * 2000-12-15 2002-08-28 Kawasaki Steel Corp Structural steel having excellent brittle crack propagation stopping characteristic and fatigue crack propagation characteristic after plastic deformation and manufacturing method thereof
JP2005097694A (en) * 2003-09-26 2005-04-14 Jfe Steel Kk Method for manufacturing non-heat-treated high-strength thick steel plate superior in brittle crack arrestability
CA2601052A1 (en) * 2005-03-17 2006-09-21 Sumitomo Metal Industries, Ltd. High-tensile steel plate, welded steel pipe or tube, and methods of manufacturing thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2008108333A1 *

Also Published As

Publication number Publication date
EP2119803A1 (en) 2009-11-18
WO2008108333A1 (en) 2008-09-12
TWI335355B (en) 2011-01-01
BRPI0808347A2 (en) 2014-07-29
KR101024709B1 (en) 2011-03-24
BRPI0808347B1 (en) 2017-07-04
JP4309946B2 (en) 2009-08-05
JP2008248382A (en) 2008-10-16
CN101622370B (en) 2011-07-13
CN101622370A (en) 2010-01-06
TW200844240A (en) 2008-11-16
KR20090110384A (en) 2009-10-21

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