EP3239340A4 - Superduplexedelstahl mit hervorragender streckgrenze und schlagzähigkeit und herstellungsverfahren dafür - Google Patents

Superduplexedelstahl mit hervorragender streckgrenze und schlagzähigkeit und herstellungsverfahren dafür Download PDF

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Publication number
EP3239340A4
EP3239340A4 EP15873621.5A EP15873621A EP3239340A4 EP 3239340 A4 EP3239340 A4 EP 3239340A4 EP 15873621 A EP15873621 A EP 15873621A EP 3239340 A4 EP3239340 A4 EP 3239340A4
Authority
EP
European Patent Office
Prior art keywords
manufacturing
stainless steel
yield strength
method therefor
duplex stainless
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Withdrawn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
EP15873621.5A
Other languages
English (en)
French (fr)
Other versions
EP3239340A1 (de
Inventor
Jong Jin Jeon
Dong Ik Shin
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 EP3239340A1 publication Critical patent/EP3239340A1/de
Publication of EP3239340A4 publication Critical patent/EP3239340A4/de
Withdrawn legal-status Critical Current

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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
    • 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
    • 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
    • C21D1/26—Methods of annealing
    • 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
    • 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
    • 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
    • C22C38/18—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
    • 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
    • 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
    • C21D2211/004—Dispersions; Precipitations
    • 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
    • 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
    • C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
    • C21D8/0421—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the working steps
    • C21D8/0426—Hot rolling

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)
EP15873621.5A 2014-12-26 2015-12-22 Superduplexedelstahl mit hervorragender streckgrenze und schlagzähigkeit und herstellungsverfahren dafür Withdrawn EP3239340A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020140191169A KR101668532B1 (ko) 2014-12-26 2014-12-26 항복강도 및 충격인성이 우수한 슈퍼 듀플렉스 스테인리스강 및 그 제조방법
PCT/KR2015/014114 WO2016105094A1 (ko) 2014-12-26 2015-12-22 항복강도 및 충격인성이 우수한 슈퍼 듀플렉스 스테인리스강 및 그 제조방법

Publications (2)

Publication Number Publication Date
EP3239340A1 EP3239340A1 (de) 2017-11-01
EP3239340A4 true EP3239340A4 (de) 2018-07-25

Family

ID=56151033

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15873621.5A Withdrawn EP3239340A4 (de) 2014-12-26 2015-12-22 Superduplexedelstahl mit hervorragender streckgrenze und schlagzähigkeit und herstellungsverfahren dafür

Country Status (6)

Country Link
US (1) US20170327923A1 (de)
EP (1) EP3239340A4 (de)
JP (1) JP2018501403A (de)
KR (1) KR101668532B1 (de)
CN (1) CN107109603B (de)
WO (1) WO2016105094A1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017204099A1 (de) * 2016-03-15 2017-09-21 Ksb Aktiengesellschaft Verfahren zur Herstellung von Bauteilen aus einem Duplexstahl sowie mit dem Verfahren hergestellte Bauteile
CN109385507B (zh) * 2018-12-20 2020-06-09 四川民盛特钢锻造有限公司 一种超低碳双相不锈钢钵体的热处理方法
CN113523166A (zh) * 2021-07-21 2021-10-22 苏州雷格姆海洋石油设备科技有限公司 深海连接器用25%Cr大壁厚超级双目不锈钢锻件的生产工艺
CN114164373B (zh) * 2021-11-10 2022-11-11 中国兵器科学研究院宁波分院 一种Nb微合金化双相不锈钢及其制备方法
CN114346142B (zh) * 2022-01-18 2023-07-14 山西太钢不锈钢股份有限公司 一种提高s32750超级双相不锈钢圆钢低温冲击韧性的锻造方法
CN114657335B (zh) * 2022-04-01 2023-06-16 山西太钢不锈钢股份有限公司 超级双相不锈钢及其退火方法
CN115341074B (zh) * 2022-09-05 2024-01-09 江苏圣珀新材料科技有限公司 一种双相钢的退火工艺

Citations (1)

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CN1052036C (zh) * 1994-05-21 2000-05-03 朴庸秀 有高耐腐蚀性的双相不锈钢
JP3041050B2 (ja) * 1995-06-05 2000-05-15 ポハング アイアン アンド スチール カンパニー リミテッド 二相ステンレス鋼およびその製造法
KR100460346B1 (ko) * 2002-03-25 2004-12-08 이인성 금속간상의 형성이 억제된 내식성, 내취화성, 주조성 및열간가공성이 우수한 슈퍼 듀플렉스 스테인리스강
KR100537135B1 (ko) * 2002-12-14 2005-12-16 금호미쓰이화학 주식회사 난연3등급 패널용 폴리우레탄 발포체의 제조방법
JP2006274323A (ja) * 2005-03-28 2006-10-12 Kokino Zairyo Kogaku Kenkyusho:Kk 高硬度で優れた耐食性を有するナノ結晶合金鋼粉末及び高強度・強靱で優れた耐食性を有するナノ結晶合金鋼バルク材並びにそれらの製造方法
EP2172574B1 (de) * 2007-08-02 2019-01-23 Nippon Steel & Sumikin Stainless Steel Corporation Ferritisch-austenitischer edelstahl mit hervorragender korrosionsbeständigkeit und bearbeitbarkeit sowie herstellungsverfahren dafür
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IRENE CALLIARI ET AL: "Phase Transformation in Duplex Stainless Steels after Isothermal Treatments, Continuous Cooling and Cold Working", MATERIALS SCIENCE FORUM, 1 January 2010 (2010-01-01), pages 2986 - 2991, XP055477979, Retrieved from the Internet <URL:https://doi.org/10.4028/www.scientific.net/MSF.638-642.2986?nosfx=y> [retrieved on 20180524], DOI: 10.4028/www.scientific.net/MSF.638-642.2986 *
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See also references of WO2016105094A1 *

Also Published As

Publication number Publication date
CN107109603A (zh) 2017-08-29
CN107109603B (zh) 2019-05-07
US20170327923A1 (en) 2017-11-16
JP2018501403A (ja) 2018-01-18
KR20160080316A (ko) 2016-07-08
WO2016105094A1 (ko) 2016-06-30
KR101668532B1 (ko) 2016-10-24
EP3239340A1 (de) 2017-11-01

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