EP3633060A4 - Steel sheet and production method therefor - Google Patents

Steel sheet and production method therefor Download PDF

Info

Publication number
EP3633060A4
EP3633060A4 EP18922100.5A EP18922100A EP3633060A4 EP 3633060 A4 EP3633060 A4 EP 3633060A4 EP 18922100 A EP18922100 A EP 18922100A EP 3633060 A4 EP3633060 A4 EP 3633060A4
Authority
EP
European Patent Office
Prior art keywords
steel sheet
production method
method therefor
therefor
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.)
Granted
Application number
EP18922100.5A
Other languages
German (de)
French (fr)
Other versions
EP3633060A1 (en
EP3633060B1 (en
Inventor
Fumitoshi Takamine
Hitoshi Furuya
Norimasa Kawabata
Takumi MIYAKE
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 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 Corp filed Critical Nippon Steel Corp
Publication of EP3633060A1 publication Critical patent/EP3633060A1/en
Publication of EP3633060A4 publication Critical patent/EP3633060A4/en
Application granted granted Critical
Publication of EP3633060B1 publication Critical patent/EP3633060B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • 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
    • 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
    • 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
    • C21D8/0247—Modifying the physical properties 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 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
    • 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
    • C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0273—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
    • C22C38/001—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
    • C22C38/02—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
    • 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
    • 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron

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 Steel (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
EP18922100.5A 2018-08-20 2018-08-20 Steel plate and method of manufacturing the same Active EP3633060B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2018/030676 WO2020039485A1 (en) 2018-08-20 2018-08-20 Steel sheet and production method therefor

Publications (3)

Publication Number Publication Date
EP3633060A1 EP3633060A1 (en) 2020-04-08
EP3633060A4 true EP3633060A4 (en) 2020-05-06
EP3633060B1 EP3633060B1 (en) 2021-12-29

Family

ID=65999146

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18922100.5A Active EP3633060B1 (en) 2018-08-20 2018-08-20 Steel plate and method of manufacturing the same

Country Status (6)

Country Link
EP (1) EP3633060B1 (en)
JP (1) JP6493645B1 (en)
KR (1) KR102115277B1 (en)
CN (1) CN111083928B (en)
AU (1) AU2018430608B2 (en)
WO (1) WO2020039485A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110129720A (en) * 2019-04-28 2019-08-16 徐州箱桥机械有限公司 A kind of heat treatment method of gearbox gear in re carburizing equipment
CN114645182B (en) * 2022-03-23 2022-10-14 承德建龙特殊钢有限公司 Gear steel and preparation method and application thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011142285A1 (en) * 2010-05-14 2011-11-17 新日本製鐵株式会社 High-strength steel plate and method for producing same
EP2757171A1 (en) * 2011-10-07 2014-07-23 JFE Steel Corporation High-strength hot-dipped galvanized steel sheet having excellent formability and impact resistance, and method for producing same
EP3098331A1 (en) * 2014-01-28 2016-11-30 Jfe Steel Corporation Wear-resistant steel plate and process for producing same
JP2017186647A (en) * 2016-03-31 2017-10-12 株式会社神戸製鋼所 High-strength steel sheet and method for producing the same
EP3351650A1 (en) * 2015-09-17 2018-07-25 JFE Steel Corporation Steel structure for hydrogen which exhibits excellent hydrogen embrittlement resistance properties in high-pressure hydrogen gas, and method for producing same

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01279709A (en) * 1988-05-06 1989-11-10 Kobe Steel Ltd Production of pre-hardened steel for plastic die by directly quenching
JP6398576B2 (en) * 2014-10-10 2018-10-03 新日鐵住金株式会社 Steel sheet with excellent toughness and method for producing the same
WO2016079978A1 (en) * 2014-11-18 2016-05-26 Ｊｆｅスチール株式会社 Thick, high toughness, high tension steel sheet with excellent material uniformity and manufacturing method therefor
JP6733269B2 (en) * 2016-04-04 2020-07-29 日本製鉄株式会社 A steel plate having a hardness of the surface layer and the central portion of the plate thickness and having a small hardness difference between the surface layer and the center and having a thickness of more than 200 mm, and a manufacturing method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011142285A1 (en) * 2010-05-14 2011-11-17 新日本製鐵株式会社 High-strength steel plate and method for producing same
EP2757171A1 (en) * 2011-10-07 2014-07-23 JFE Steel Corporation High-strength hot-dipped galvanized steel sheet having excellent formability and impact resistance, and method for producing same
EP3098331A1 (en) * 2014-01-28 2016-11-30 Jfe Steel Corporation Wear-resistant steel plate and process for producing same
EP3351650A1 (en) * 2015-09-17 2018-07-25 JFE Steel Corporation Steel structure for hydrogen which exhibits excellent hydrogen embrittlement resistance properties in high-pressure hydrogen gas, and method for producing same
JP2017186647A (en) * 2016-03-31 2017-10-12 株式会社神戸製鋼所 High-strength steel sheet and method for producing the same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2020039485A1 *

Also Published As

Publication number Publication date
WO2020039485A1 (en) 2020-02-27
KR20200022387A (en) 2020-03-03
JP6493645B1 (en) 2019-04-03
KR102115277B1 (en) 2020-05-26
AU2018430608A1 (en) 2020-03-05
EP3633060A1 (en) 2020-04-08
CN111083928A (en) 2020-04-28
EP3633060B1 (en) 2021-12-29
AU2018430608B2 (en) 2021-02-04
JPWO2020039485A1 (en) 2020-08-27
CN111083928B (en) 2020-11-20

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