EP3940103A4 - THICK STEEL PLATE - Google Patents

THICK STEEL PLATE Download PDF

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Publication number
EP3940103A4
EP3940103A4 EP20794425.7A EP20794425A EP3940103A4 EP 3940103 A4 EP3940103 A4 EP 3940103A4 EP 20794425 A EP20794425 A EP 20794425A EP 3940103 A4 EP3940103 A4 EP 3940103A4
Authority
EP
European Patent Office
Prior art keywords
steel plate
thick steel
thick
plate
steel
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.)
Pending
Application number
EP20794425.7A
Other languages
German (de)
French (fr)
Other versions
EP3940103A1 (en
Inventor
Hidenori Nako
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel Ltd
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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Publication of EP3940103A1 publication Critical patent/EP3940103A1/en
Publication of EP3940103A4 publication Critical patent/EP3940103A4/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/02—Hardening articles or materials formed by forging or rolling, with no further heating beyond that required for the formation
    • 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
    • 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
    • C21D8/0231—Warm 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
    • C21D8/0247—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 heat treatment
    • C21D8/0263—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 heat treatment following 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
    • C22C38/06—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
    • 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
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
    • 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
    • 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
    • C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
    • 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
    • C21D2211/005—Ferrite

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)
EP20794425.7A 2019-04-22 2020-03-30 THICK STEEL PLATE Pending EP3940103A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2019081271 2019-04-22
JP2020007626A JP7398970B2 (en) 2019-04-22 2020-01-21 Thick steel plate and its manufacturing method
PCT/JP2020/014612 WO2020217873A1 (en) 2019-04-22 2020-03-30 Thick steel plate

Publications (2)

Publication Number Publication Date
EP3940103A1 EP3940103A1 (en) 2022-01-19
EP3940103A4 true EP3940103A4 (en) 2022-11-30

Family

ID=72936617

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20794425.7A Pending EP3940103A4 (en) 2019-04-22 2020-03-30 THICK STEEL PLATE

Country Status (5)

Country Link
EP (1) EP3940103A4 (en)
JP (1) JP7398970B2 (en)
KR (1) KR102684370B1 (en)
CN (1) CN113840933B (en)
WO (1) WO2020217873A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116014309B (en) 2021-10-22 2026-03-24 株式会社Lg新能源 Cylindrical batteries, current collectors used in them, battery packs containing them, and automobiles.
CN114277314B (en) * 2021-12-02 2022-12-09 莱芜钢铁集团银山型钢有限公司 Corrosion-resistant high-strength steel plate for high heat input welding ocean engineering and preparation method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5679091B1 (en) * 2013-04-04 2015-03-04 Ｊｆｅスチール株式会社 Hot-rolled steel sheet and manufacturing method thereof
JP5812193B2 (en) * 2012-05-21 2015-11-11 Ｊｆｅスチール株式会社 Structural high-strength thick steel plate with excellent brittle crack propagation stopping characteristics and method for producing the same
JP2016148105A (en) * 2015-02-10 2016-08-18 新日鐵住金株式会社 Steel sheet for LPG tank and method for producing the same

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08158006A (en) * 1994-12-06 1996-06-18 Kobe Steel Ltd High strength steel excellent in toughness in weld heat-affected zone
JP2007270194A (en) 2006-03-30 2007-10-18 Jfe Steel Kk Method for producing high-strength steel sheet excellent in sr resistance property
JP4605117B2 (en) 2006-07-25 2011-01-05 住友金属工業株式会社 Steel used for tanks for LPG / ammonia carrier
KR100851189B1 (en) * 2006-11-02 2008-08-08 주식회사 포스코 Steel plate for ultra high strength line pipe with excellent low temperature toughness and manufacturing method
JP5031531B2 (en) 2007-11-20 2012-09-19 新日本製鐵株式会社 Low yield ratio high strength steel sheet excellent in base metal low temperature toughness and HAZ low temperature toughness and its manufacturing method
CN102666884B (en) * 2010-02-08 2013-07-31 新日铁住金株式会社 Production method for thick steel plate
JP5533024B2 (en) 2010-02-26 2014-06-25 Ｊｆｅスチール株式会社 Manufacturing method for thick-walled high-tensile hot-rolled steel sheet with excellent low-temperature toughness
JP5833964B2 (en) 2012-03-29 2015-12-16 株式会社神戸製鋼所 Steel sheet excellent in bending workability, impact property and tensile property, and method for producing the same
JP6196929B2 (en) * 2014-04-08 2017-09-13 株式会社神戸製鋼所 Thick steel plate with excellent HAZ toughness at cryogenic temperatures
KR101726082B1 (en) * 2015-12-04 2017-04-12 주식회사 포스코 Steel having superior brittle crack arrestability and resistance brittle crack initiation of welding point and method for manufacturing the steel
CN111094609B (en) 2017-09-19 2021-09-14 日本制铁株式会社 Steel pipe and steel plate
JP2019081271A (en) 2017-10-30 2019-05-30 クラレプラスチックス株式会社 Whiteboard and projection screen combined film
JP7100318B2 (en) 2018-07-11 2022-07-13 Ｔｎｋ水道コンサルタント株式会社 Sulfuric acid corrosion resistant concrete pipes, methods for preventing sulfuric acid corrosion of concrete pipes and methods for preventing corrosion of reinforcing bars

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5812193B2 (en) * 2012-05-21 2015-11-11 Ｊｆｅスチール株式会社 Structural high-strength thick steel plate with excellent brittle crack propagation stopping characteristics and method for producing the same
JP5679091B1 (en) * 2013-04-04 2015-03-04 Ｊｆｅスチール株式会社 Hot-rolled steel sheet and manufacturing method thereof
JP2016148105A (en) * 2015-02-10 2016-08-18 新日鐵住金株式会社 Steel sheet for LPG tank and method for producing the same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2020217873A1 *

Also Published As

Publication number Publication date
KR20210142184A (en) 2021-11-24
CN113840933B (en) 2022-09-16
EP3940103A1 (en) 2022-01-19
KR102684370B1 (en) 2024-07-11
JP2020176329A (en) 2020-10-29
JP7398970B2 (en) 2023-12-15
WO2020217873A1 (en) 2020-10-29
CN113840933A (en) 2021-12-24

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Owner name: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)

RIN1 Information on inventor provided before grant (corrected)

Inventor name: NAKO, HIDENORI

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