IN2015DN00772A - - Google Patents

Info

Publication number
IN2015DN00772A
IN2015DN00772A IN772DEN2015A IN2015DN00772A IN 2015DN00772 A IN2015DN00772 A IN 2015DN00772A IN 772DEN2015 A IN772DEN2015 A IN 772DEN2015A IN 2015DN00772 A IN2015DN00772 A IN 2015DN00772A
Authority
IN
India
Prior art keywords
phase
tempered
tempered martensite
martensite
ratio
Prior art date
Application number
Inventor
Chikara Kami
Sota Goto
Original Assignee
Jfe 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 Jfe Steel Corp filed Critical Jfe Steel Corp
Publication of IN2015DN00772A publication Critical patent/IN2015DN00772A/en

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
    • C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
    • C21D8/1216—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the working step(s) being of interest
    • C21D8/1222—Hot rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
    • B21B3/02—Rolling special iron alloys, e.g. stainless steel
    • 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
    • C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
    • 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
    • C21D6/005—Heat treatment of ferrous alloys containing Mn
    • 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
    • C21D6/008—Heat treatment of ferrous alloys containing Si
    • 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
    • C21D8/0247—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
    • C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
    • C21D8/1244—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest
    • C21D8/1261—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest 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
    • 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
    • C22C38/02—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
    • C22C38/18—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
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel 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
    • C22C38/40—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
    • C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
    • 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
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with 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
    • C22C38/18—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
    • 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)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Electromagnetism (AREA)
  • Manufacturing & Machinery (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

Provided is a low yield ratio high strength hot rolled steel sheet having excellent low temperature toughness and being appropriate as a steel pipe raw material. The present invention has a composition including 0.03 0.10% C 0.01 0.50% Si 1.4 2.2% Mn no more than 0.025% P no more than 0.005% S 0.005 0.10% Al 0.02 0.10% Nb 0.001 0.030% Ti 0.01 0.50% Mo 0.01 0.50% Cr and 0.01 0.50% Ni Moeq preferably satisfying a range of 1.4 2.2% and the inner layers have a structure that includes bainitic ferrite having an average grain size no larger than 10 µm as a main phase and massive martensite having a surface area ratio of 1.4 15% and an aspect ratio of less than 5.0 as a second phase the surface layer comprising a tempered martensite phase or a tempered martensite phase and a tempered bainite phase.
IN772DEN2015 2012-09-13 2013-09-11 IN2015DN00772A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012201266 2012-09-13
PCT/JP2013/005388 WO2014041802A1 (en) 2012-09-13 2013-09-11 Hot-rolled steel sheet and method for manufacturing same

Publications (1)

Publication Number Publication Date
IN2015DN00772A true IN2015DN00772A (en) 2015-07-03

Family

ID=50277943

Family Applications (1)

Application Number Title Priority Date Filing Date
IN772DEN2015 IN2015DN00772A (en) 2012-09-13 2013-09-11

Country Status (7)

Country Link
US (1) US20150232970A1 (en)
EP (1) EP2871254B1 (en)
JP (1) JP5605527B2 (en)
KR (1) KR101702794B1 (en)
CN (1) CN104619876B (en)
IN (1) IN2015DN00772A (en)
WO (1) WO2014041802A1 (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR112015005440B1 (en) 2012-09-13 2019-07-30 Jfe Steel Corporation HOT LAMINATED STEEL SHEET AND METHOD FOR MANUFACTURING IT
WO2017050790A1 (en) * 2015-09-22 2017-03-30 Tata Steel Ijmuiden B.V. A hot-rolled high-strength roll-formable steel sheet with excellent stretch-flange formability and a method of producing said steel
WO2017130875A1 (en) * 2016-01-27 2017-08-03 Ｊｆｅスチール株式会社 High-strength hot-rolled steel sheet for electric resistance welded steel pipe, and method for manufacturing same
KR101830437B1 (en) * 2016-04-25 2018-02-20 현대자동차주식회사 High toughness, heat-treated steel pipe having a three-layer structure and manufacturing method thereof
JP6624103B2 (en) * 2017-02-06 2019-12-25 Ｊｆｅスチール株式会社 High strength hot rolled steel sheet and method for producing the same
EP3584337B1 (en) * 2017-02-17 2020-12-23 JFE Steel Corporation High strength hot-rolled steel sheet and method for producing same
EP3617336A4 (en) * 2017-04-28 2020-09-16 Nippon Steel Corporation HIGH STRENGTH STEEL SHEET AND METHOD OF MANUFACTURING ITEM
KR101999015B1 (en) 2017-12-24 2019-07-10 주식회사 포스코 Steel for structure having superior resistibility of brittle crack arrestability and manufacturing method thereof
KR102031450B1 (en) * 2017-12-24 2019-10-11 주식회사 포스코 High strength steel sheet and manufacturing method for the same
KR102200224B1 (en) * 2018-12-19 2021-01-08 주식회사 포스코 Steel for a structure having excellent resistance to brittle fracture and manufacturing method for the same
KR102555312B1 (en) * 2019-03-29 2023-07-12 제이에프이 스틸 가부시키가이샤 Electric resistance steel pipe, manufacturing method thereof, and steel pipe pile
CN114761595B (en) * 2019-11-27 2023-08-01 杰富意钢铁株式会社 Steel sheet and method for producing same
WO2021123877A1 (en) * 2019-12-17 2021-06-24 Arcelormittal Hot rolled steel sheet and method of manufacturing thereof
US12241135B2 (en) 2019-12-18 2025-03-04 Posco Co., Ltd High-strength hot-rolled steel sheet having excellent blanking properties and uniformity, and manufacturing method thereof
KR102391651B1 (en) 2020-09-22 2022-04-29 주식회사 포스코 Hot rolled steel sheet having excellent crashworthness, and method for manufacturing the same
JP7688287B2 (en) * 2021-06-22 2025-06-04 日本製鉄株式会社 HOT-ROLLED STEEL SHEET AND ITS MANUFACTURING METHOD
CN114107612B (en) * 2021-11-30 2023-04-18 马鞍山钢铁股份有限公司 Tempering heat treatment design method for H-shaped steel, hot-rolled H-shaped steel for anti-seismic and fireproof building structure and tempering heat treatment method for hot-rolled H-shaped steel
WO2023162522A1 (en) * 2022-02-24 2023-08-31 Ｊｆｅスチール株式会社 Steel sheet and method for producing same

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JP2510187B2 (en) 1987-03-17 1996-06-26 川崎製鉄株式会社 Method for producing hot-rolled steel sheet for low-yield ratio high-strength line pipe with excellent low temperature toughness
DE19612818C2 (en) * 1996-03-30 1998-04-09 Schloemann Siemag Ag Process for cooling warm-rolled steel profiles
JPH10176239A (en) 1996-10-17 1998-06-30 Kobe Steel Ltd High strength and low yield ratio hot rolled steel sheet for pipe and its production
JP5011773B2 (en) 2005-03-24 2012-08-29 Ｊｆｅスチール株式会社 Manufacturing method of low yield ratio ERW steel pipe with excellent low temperature toughness
JP5223379B2 (en) * 2007-03-08 2013-06-26 新日鐵住金株式会社 High strength hot rolled steel sheet for spiral pipe with excellent low temperature toughness and method for producing the same
KR101257547B1 (en) * 2007-07-23 2013-04-23 신닛테츠스미킨 카부시키카이샤 Steel pipes excellent in deformation characteristics and process for manufacturing the same
GB0719457D0 (en) * 2007-10-04 2007-11-14 Skf Ab Heat-treatment process for a steel
JP5162382B2 (en) 2008-09-03 2013-03-13 株式会社神戸製鋼所 Low yield ratio high toughness steel plate
RU2478123C1 (en) * 2009-01-30 2013-03-27 ДжФЕ СТИЛ КОРПОРЕЙШН Thick-wall high-strength hot-rolled steel sheet that features high resistance to cracking induced by oxygen, and method of its production
JP5499731B2 (en) * 2009-01-30 2014-05-21 Ｊｆｅスチール株式会社 Thick high-tensile hot-rolled steel sheet with excellent HIC resistance and method for producing the same
EP2392682B1 (en) * 2009-01-30 2019-09-11 JFE Steel Corporation Thick high-tensile-strength hot-rolled steel sheet with excellent low-temperature toughness and process for production of same
JP5679114B2 (en) * 2011-02-24 2015-03-04 Ｊｆｅスチール株式会社 Low yield ratio high strength hot rolled steel sheet with excellent low temperature toughness and method for producing the same
JP6006477B2 (en) * 2011-06-24 2016-10-12 株式会社神戸製鋼所 Method for producing high-strength steel sheet excellent in balance between low-temperature toughness and strength, and control method thereof

Also Published As

Publication number Publication date
EP2871254A1 (en) 2015-05-13
US20150232970A1 (en) 2015-08-20
KR101702794B1 (en) 2017-02-03
EP2871254B1 (en) 2020-06-24
WO2014041802A1 (en) 2014-03-20
JPWO2014041802A1 (en) 2016-08-12
BR112015005419A2 (en) 2017-07-04
KR20150038747A (en) 2015-04-08
CN104619876A (en) 2015-05-13
CN104619876B (en) 2016-12-21
JP5605527B2 (en) 2014-10-15
EP2871254A4 (en) 2015-11-18

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