EP3872214A4 - MANGANIC STEEL WITH EXCELLENT OXYGEN CUTTING PROPERTIES AND MANUFACTURING PROCESSES FOR IT - Google Patents

MANGANIC STEEL WITH EXCELLENT OXYGEN CUTTING PROPERTIES AND MANUFACTURING PROCESSES FOR IT Download PDF

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Publication number
EP3872214A4
EP3872214A4 EP19876472.2A EP19876472A EP3872214A4 EP 3872214 A4 EP3872214 A4 EP 3872214A4 EP 19876472 A EP19876472 A EP 19876472A EP 3872214 A4 EP3872214 A4 EP 3872214A4
Authority
EP
European Patent Office
Prior art keywords
manufacturing
method therefor
manganese steel
high manganese
excellent oxygen
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
EP19876472.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3872214A1 (en
Inventor
Un-Hae LEE
Dong-Ho Lee
Won-Tae Cho
Soon-Gi Lee
Chang-Sik Choi
Sang-Deok Kang
Young-Deok JUNG
Bo-Sung Kim
Jeong-Hun SEOK
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/KR2019/014184 external-priority patent/WO2020085855A1/ko
Publication of EP3872214A1 publication Critical patent/EP3872214A1/en
Publication of EP3872214A4 publication Critical patent/EP3872214A4/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
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/002—Heat treatment of ferrous alloys containing Cr
    • 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
    • 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
    • C22C38/32—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
    • 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
    • C21D2261/00—Machining or cutting being involved
EP19876472.2A 2018-10-25 2019-10-25 MANGANIC STEEL WITH EXCELLENT OXYGEN CUTTING PROPERTIES AND MANUFACTURING PROCESSES FOR IT Pending EP3872214A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR20180128502 2018-10-25
KR1020190118923A KR102245226B1 (ko) 2018-10-25 2019-09-26 산소 절단성이 우수한 고망간 강재 및 그 제조방법
PCT/KR2019/014184 WO2020085855A1 (ko) 2018-10-25 2019-10-25 산소 절단성이 우수한 고망간 강재 및 그 제조방법

Publications (2)

Publication Number Publication Date
EP3872214A1 EP3872214A1 (en) 2021-09-01
EP3872214A4 true EP3872214A4 (en) 2021-09-01

Family

ID=70733246

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19876472.2A Pending EP3872214A4 (en) 2018-10-25 2019-10-25 MANGANIC STEEL WITH EXCELLENT OXYGEN CUTTING PROPERTIES AND MANUFACTURING PROCESSES FOR IT

Country Status (3)

Country Link
EP (1) EP3872214A4 (ko)
KR (1) KR102245226B1 (ko)
CN (1) CN112912526B (ko)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4329172A (en) * 1980-01-08 1982-05-11 Nippon Kokan Kabushiki Kaisha High manganese nonmagnetic steel having excellent machinability
JPS621823A (ja) * 1985-06-25 1987-01-07 Kobe Steel Ltd 被削性にすぐれた高Ｍｎ非磁性鋼の製造方法
WO2009084792A1 (en) * 2007-12-28 2009-07-09 Posco High manganese steel having high strength and excellent delayed fracture resistance and manufacturing method thereof
JP2013023743A (ja) * 2011-07-22 2013-02-04 Kobe Steel Ltd 非磁性鋼線材又は棒鋼、及びその製造方法
WO2017111510A1 (ko) * 2015-12-23 2017-06-29 주식회사 포스코 열간 가공성이 우수한 비자성 강재 및 그 제조방법
CN107620010A (zh) * 2017-10-18 2018-01-23 舞阳钢铁有限责任公司 一种低屈强比高韧性高锰钢板及其生产方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2857980B1 (fr) * 2003-07-22 2006-01-13 Usinor Procede de fabrication de toles d'acier austenitique fer-carbone-manganese, a haute resistance, excellente tenacite et aptitude a la mise en forme a froid, et toles ainsi produites
EP1878811A1 (en) * 2006-07-11 2008-01-16 ARCELOR France Process for manufacturing iron-carbon-manganese austenitic steel sheet with excellent resistance to delayed cracking, and sheet thus produced
KR101068401B1 (ko) 2008-12-05 2011-10-04 김산 산소절단 장치
JP2013023742A (ja) * 2011-07-22 2013-02-04 Kobe Steel Ltd 非磁性鋼線材又は棒鋼
KR101889187B1 (ko) * 2015-12-23 2018-08-16 주식회사 포스코 열간 가공성이 우수한 비자성 강재 및 그 제조방법

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4329172A (en) * 1980-01-08 1982-05-11 Nippon Kokan Kabushiki Kaisha High manganese nonmagnetic steel having excellent machinability
JPS621823A (ja) * 1985-06-25 1987-01-07 Kobe Steel Ltd 被削性にすぐれた高Ｍｎ非磁性鋼の製造方法
WO2009084792A1 (en) * 2007-12-28 2009-07-09 Posco High manganese steel having high strength and excellent delayed fracture resistance and manufacturing method thereof
JP2013023743A (ja) * 2011-07-22 2013-02-04 Kobe Steel Ltd 非磁性鋼線材又は棒鋼、及びその製造方法
WO2017111510A1 (ko) * 2015-12-23 2017-06-29 주식회사 포스코 열간 가공성이 우수한 비자성 강재 및 그 제조방법
CN107620010A (zh) * 2017-10-18 2018-01-23 舞阳钢铁有限责任公司 一种低屈强比高韧性高锰钢板及其生产方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2020085855A1 *

Also Published As

Publication number Publication date
EP3872214A1 (en) 2021-09-01
CN112912526A (zh) 2021-06-04
KR20200047316A (ko) 2020-05-07
CN112912526B (zh) 2022-08-02
KR102245226B1 (ko) 2021-04-28

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Owner name: POSCO HOLDINGS INC.

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

Owner name: POSCO CO., LTD