EP3556892A4 - Low alloy steel sheet having excellent strength and ductility - Google Patents

Low alloy steel sheet having excellent strength and ductility Download PDF

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Publication number
EP3556892A4
EP3556892A4 EP17881659.1A EP17881659A EP3556892A4 EP 3556892 A4 EP3556892 A4 EP 3556892A4 EP 17881659 A EP17881659 A EP 17881659A EP 3556892 A4 EP3556892 A4 EP 3556892A4
Authority
EP
European Patent Office
Prior art keywords
ductility
steel sheet
alloy steel
excellent strength
low alloy
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Withdrawn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
EP17881659.1A
Other languages
German (de)
French (fr)
Other versions
EP3556892A1 (en
Inventor
Jeom Yong Choi
Mi Nam Park
Min Hyoung Lee
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.)
Posco Holdings Inc
Original Assignee
Posco Co 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 Posco Co Ltd filed Critical Posco Co Ltd
Publication of EP3556892A1 publication Critical patent/EP3556892A1/en
Publication of EP3556892A4 publication Critical patent/EP3556892A4/en
Withdrawn legal-status Critical Current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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/20—Ferrous alloys, e.g. steel alloys containing chromium 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
    • C22C38/001—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
    • C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
    • 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
    • C22C38/22—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
    • C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of 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
    • C22C38/18—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
    • 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
    • C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of 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
    • C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
    • 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
    • C21D2211/001—Austenite
    • 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
    • C21D2211/008—Martensite
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
EP17881659.1A 2016-12-13 2017-05-24 Low alloy steel sheet having excellent strength and ductility Withdrawn EP3556892A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020160169693A KR101903174B1 (en) 2016-12-13 2016-12-13 Low alloy steel sheet with excellent strength and ductility
PCT/KR2017/005381 WO2018110779A1 (en) 2016-12-13 2017-05-24 Low alloy steel sheet having excellent strength and ductility

Publications (2)

Publication Number Publication Date
EP3556892A1 EP3556892A1 (en) 2019-10-23
EP3556892A4 true EP3556892A4 (en) 2019-10-23

Family

ID=62559145

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17881659.1A Withdrawn EP3556892A4 (en) 2016-12-13 2017-05-24 Low alloy steel sheet having excellent strength and ductility

Country Status (6)

Country Link
US (1) US20200080178A1 (en)
EP (1) EP3556892A4 (en)
JP (1) JP2020509175A (en)
KR (1) KR101903174B1 (en)
CN (1) CN110062814A (en)
WO (1) WO2018110779A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101952818B1 (en) * 2017-09-25 2019-02-28 주식회사포스코 Low alloy steel sheet with high strength and ductility and method of manufacturing same
CN110396691B (en) * 2019-08-27 2021-08-24 贵州大学 6061 aluminum alloy surface treatment method
KR102326684B1 (en) * 2019-09-17 2021-11-17 주식회사 포스코 Chromium steel sheet having excellent creep strength and high temperature ductility and method of manufacturing the same
KR102272785B1 (en) * 2019-10-29 2021-07-05 주식회사 포스코 Austenitic stainless steel with imporoved yield ratio and method for manufacturing the same
KR102385472B1 (en) * 2020-04-22 2022-04-13 주식회사 포스코 High-strength, high-formability, low cost austenitic stainless steel and manufacturing method thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH032357A (en) * 1989-05-31 1991-01-08 Nippon Metal Ind Co Ltd Nickel-economized type austenitic stainless steel
JP2009030128A (en) * 2007-07-30 2009-02-12 Nippon Steel & Sumikin Stainless Steel Corp Austenitic stainless steel sheet for structural member having excellent impact absorbing property
JP2011202237A (en) * 2010-03-26 2011-10-13 Nippon Steel & Sumikin Stainless Steel Corp High strength and high ductility austenitic stainless steel sheet for structural member, and method for producing the same
JP2012126992A (en) * 2010-11-25 2012-07-05 Jfe Steel Corp Austenite-ferrite duplex stainless steel for fuel tank
WO2013133259A1 (en) * 2012-03-09 2013-09-12 新日鐵住金ステンレス株式会社 Ferrite-austenite 2-phase stainless steel plate having low in-plane anisotropy and method for producing same
WO2016027009A1 (en) * 2014-08-21 2016-02-25 Outokumpu Oyj High strength austenitic stainless steel and production method thereof

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS505968B1 (en) * 1970-04-30 1975-03-10
FR2766843B1 (en) * 1997-07-29 1999-09-03 Usinor AUSTENITIC STAINLESS STEEL WITH A VERY LOW NICKEL CONTENT
DE102005024029B3 (en) 2005-05-23 2007-01-04 Technische Universität Bergakademie Freiberg Austenitic lightweight steel and its use
DE102005030413C5 (en) 2005-06-28 2009-12-10 Technische Universität Bergakademie Freiberg High-strength austenitic-martensitic lightweight steel and its use
US7682471B2 (en) * 2006-07-10 2010-03-23 Trw Automotive U.S. Llc Austenitic iron-based alloy
JP4976985B2 (en) * 2007-11-14 2012-07-18 株式会社神戸製鋼所 Manufacturing method of wire rod and steel bar with excellent low-temperature torsional characteristics
JP2011219809A (en) * 2010-04-08 2011-11-04 Honda Motor Co Ltd High strength steel sheet
IT1403129B1 (en) 2010-12-07 2013-10-04 Ct Sviluppo Materiali Spa PROCEDURE FOR THE PRODUCTION OF HIGH MANGANESE STEEL WITH MECHANICAL RESISTANCE AND HIGH FORMABILITY, AND STEEL SO OBTAINABLE.
KR20120063793A (en) * 2010-12-08 2012-06-18 주식회사 포스코 Ferrite stainless-steel with good workability
JP5440672B2 (en) * 2011-09-16 2014-03-12 Ｊｆｅスチール株式会社 High-strength steel sheet with excellent workability and method for producing the same
ES2885758T3 (en) * 2012-01-20 2021-12-15 Solu Stainless Oy Procedure for the manufacture of an austenitic stainless steel product
ITRM20120647A1 (en) * 2012-12-19 2014-06-20 Ct Sviluppo Materiali Spa AUSTENITIC STAINLESS STEEL WITH HIGH PLASTICITY INDUCED BY GEMINATION, PROCEDURE FOR ITS PRODUCTION, AND ITS USE IN THE MECHANICAL INDUSTRY.
CN103205655A (en) * 2013-03-21 2013-07-17 宝钢不锈钢有限公司 Sn-containing austenitic stainless steel and manufacturing method thereof
CN103966528A (en) * 2014-04-29 2014-08-06 宝钢不锈钢有限公司 Austenitic stainless steel containing Sn and manufacturing method thereof
KR101668533B1 (en) * 2014-12-26 2016-10-24 주식회사 포스코 Ferritic stainless steel with high surface quality

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH032357A (en) * 1989-05-31 1991-01-08 Nippon Metal Ind Co Ltd Nickel-economized type austenitic stainless steel
JP2009030128A (en) * 2007-07-30 2009-02-12 Nippon Steel & Sumikin Stainless Steel Corp Austenitic stainless steel sheet for structural member having excellent impact absorbing property
JP2011202237A (en) * 2010-03-26 2011-10-13 Nippon Steel & Sumikin Stainless Steel Corp High strength and high ductility austenitic stainless steel sheet for structural member, and method for producing the same
JP2012126992A (en) * 2010-11-25 2012-07-05 Jfe Steel Corp Austenite-ferrite duplex stainless steel for fuel tank
WO2013133259A1 (en) * 2012-03-09 2013-09-12 新日鐵住金ステンレス株式会社 Ferrite-austenite 2-phase stainless steel plate having low in-plane anisotropy and method for producing same
WO2016027009A1 (en) * 2014-08-21 2016-02-25 Outokumpu Oyj High strength austenitic stainless steel and production method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2018110779A1 *

Also Published As

Publication number Publication date
JP2020509175A (en) 2020-03-26
KR20180068088A (en) 2018-06-21
KR101903174B1 (en) 2018-10-01
CN110062814A (en) 2019-07-26
EP3556892A1 (en) 2019-10-23
WO2018110779A1 (en) 2018-06-21
US20200080178A1 (en) 2020-03-12

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