EP3872215A4 - High manganese austenitic steel having high yield strength and manufacturing method for same - Google Patents

High manganese austenitic steel having high yield strength and manufacturing method for same Download PDF

Info

Publication number
EP3872215A4
EP3872215A4 EP19876536.4A EP19876536A EP3872215A4 EP 3872215 A4 EP3872215 A4 EP 3872215A4 EP 19876536 A EP19876536 A EP 19876536A EP 3872215 A4 EP3872215 A4 EP 3872215A4
Authority
EP
European Patent Office
Prior art keywords
manufacturing
same
yield strength
austenitic steel
manganese austenitic
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
EP19876536.4A
Other languages
German (de)
French (fr)
Other versions
EP3872215A1 (en
Inventor
Un-Hae LEE
Bo-Sung Kim
Sang-Deok Kang
Jeong-Hun SEOK
Woo-Chul Kim
Yong-Jin Kim
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
Priority claimed from PCT/KR2019/014175 external-priority patent/WO2020085852A1/en
Publication of EP3872215A1 publication Critical patent/EP3872215A1/en
Publication of EP3872215A4 publication Critical patent/EP3872215A4/en
Pending 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
    • C21D6/005—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
    • 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
    • C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
    • 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
    • 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
    • C22C38/02—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
    • C22C38/06—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
    • C22C38/20—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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
    • 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
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/001—Austenite

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)
EP19876536.4A 2018-10-25 2019-10-25 High manganese austenitic steel having high yield strength and manufacturing method for same Pending EP3872215A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR20180128500 2018-10-25
KR1020190118926A KR102290780B1 (en) 2018-10-25 2019-09-26 High manganese austenitic steel having high yield strength and manufacturing method for the same
PCT/KR2019/014175 WO2020085852A1 (en) 2018-10-25 2019-10-25 High manganese austenitic steel having high yield strength and manufacturing method for same

Publications (2)

Publication Number Publication Date
EP3872215A1 EP3872215A1 (en) 2021-09-01
EP3872215A4 true EP3872215A4 (en) 2021-09-01

Family

ID=70733249

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19876536.4A Pending EP3872215A4 (en) 2018-10-25 2019-10-25 High manganese austenitic steel having high yield strength and manufacturing method for same

Country Status (3)

Country Link
EP (1) EP3872215A4 (en)
KR (2) KR102290780B1 (en)
CN (1) CN112912530B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2024500882A (en) * 2020-12-21 2024-01-10 ポスコ カンパニー リミテッド Austenitic high manganese steel for brake discs
KR20230072727A (en) * 2021-11-18 2023-05-25 주식회사 포스코 Hot rolled steel plate and steel tube having excellent abrasion resistance and manufacturing method thereof
KR20230094814A (en) * 2021-12-21 2023-06-28 주식회사 포스코 Welded steel pipe for slurry transporting and manufacturing method for the same

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5623259A (en) * 1979-08-03 1981-03-05 Sumitomo Metal Ind Ltd Nickel-free high manganese cast steel for low temperature use
KR20160078664A (en) * 2014-12-24 2016-07-05 주식회사 포스코 Low temperature steels having superior surface quality and method for production thereof
CN106222554A (en) * 2016-08-23 2016-12-14 南京钢铁股份有限公司 A kind of economical steel used at ultra-low temperature and preparation method thereof
WO2017111510A1 (en) * 2015-12-23 2017-06-29 주식회사 포스코 Non-magnetic steel material having excellent hot workability and manufacturing method therefor
CN107177786A (en) * 2017-05-19 2017-09-19 东北大学 The design and its manufacture method of a kind of high manganese cut deal of LNG storage tank
KR20180074450A (en) * 2016-12-23 2018-07-03 주식회사 포스코 Low temperature austenitic high manganese steel and method for manufacturing the same

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100851158B1 (en) * 2006-12-27 2008-08-08 주식회사 포스코 High Manganese High Strength Steel Sheets With Excellent Crashworthiness, And Method For Manufacturing Of It
KR20150075324A (en) 2013-12-25 2015-07-03 주식회사 포스코 High manganese austenitic steel sheet having superior yield strength and method for manufacturing the same
KR20150075336A (en) * 2013-12-25 2015-07-03 주식회사 포스코 Low temperature steels with excellent fatigue crack resistance
KR101889187B1 (en) * 2015-12-23 2018-08-16 주식회사 포스코 Nonmagnetic steel having superior hot workability and method for manufacturing the same
KR102020386B1 (en) * 2017-12-24 2019-09-10 주식회사 포스코 High manganese austenitic steel having high strength and method for manufacturing the same

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5623259A (en) * 1979-08-03 1981-03-05 Sumitomo Metal Ind Ltd Nickel-free high manganese cast steel for low temperature use
KR20160078664A (en) * 2014-12-24 2016-07-05 주식회사 포스코 Low temperature steels having superior surface quality and method for production thereof
WO2017111510A1 (en) * 2015-12-23 2017-06-29 주식회사 포스코 Non-magnetic steel material having excellent hot workability and manufacturing method therefor
CN106222554A (en) * 2016-08-23 2016-12-14 南京钢铁股份有限公司 A kind of economical steel used at ultra-low temperature and preparation method thereof
KR20180074450A (en) * 2016-12-23 2018-07-03 주식회사 포스코 Low temperature austenitic high manganese steel and method for manufacturing the same
CN107177786A (en) * 2017-05-19 2017-09-19 东北大学 The design and its manufacture method of a kind of high manganese cut deal of LNG storage tank

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2020085852A1 *

Also Published As

Publication number Publication date
EP3872215A1 (en) 2021-09-01
KR102290780B1 (en) 2021-08-20
KR20200047319A (en) 2020-05-07
KR102389019B1 (en) 2022-04-22
CN112912530B (en) 2023-01-24
CN112912530A (en) 2021-06-04
KR20210102146A (en) 2021-08-19

Similar Documents

Publication Publication Date Title
EP3584337A4 (en) High strength hot-rolled steel sheet and method for producing same
EP3778974A4 (en) High-strength steel sheet and method for manufacturing same
EP4006190A4 (en) High-strength steel sheet and method for manufacturing same
EP3476963A4 (en) High strength cold-rolled steel sheet and method for manufacturing same
EP3444372A4 (en) High strength steel sheet and manufacturing method therefor
EP3561110A4 (en) High manganese steel having superior low-temperature toughness and yield strength and manufacturing method
EP3786310A4 (en) Steel member and method for producing same
EP3875623A4 (en) High-strength steel sheet and manufacturing method therefor
EP3778973A4 (en) High-strength sheet steel and method for manufacturing same
EP3848479A4 (en) Ultra high strength and high ductility steel sheet having excellent yield ratio and manufacturing method for same
EP3831972A4 (en) High-strength hot-rolled steel sheet and method for manufacturing same
EP3872215A4 (en) High manganese austenitic steel having high yield strength and manufacturing method for same
EP3828298A4 (en) High yield ratio, high strength electro-galvanized steel sheet, and manufacturing method thereof
EP3412786A4 (en) High strength steel sheet and manufacturing method therefor
EP3926057A4 (en) High-mn steel and method for manufacturing same
EP3885462A4 (en) High-yield-ratio cold-rolled dual-phase steel and manufacturing method therefor
EP3757242A4 (en) High-strength steel sheet and manufacturing method therefor
EP3889283A4 (en) High-strength steel sheet and method for manufacturing same
EP3722448A4 (en) High-mn steel and method for manufacturing same
EP3822382A4 (en) High-strength steel sheet and method for manufacturing same
EP3825433A4 (en) High strength steel sheet and production method therefor
EP3578678A4 (en) Maraging steel and method for manufacturing same
EP3617336A4 (en) High strength steel sheet and method for manufacturing same
EP3933054A4 (en) High-strength steel sheet and method for manufacturing same
EP3831973A4 (en) High-mn steel and method for producing same

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20210518

A4 Supplementary search report drawn up and despatched

Effective date: 20210629

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: POSCO HOLDINGS INC.

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: POSCO CO., LTD