WO2016104883A8 - 연성이 우수한 페라이트계 스테인리스 강재 및 그 제조방법 - Google Patents

연성이 우수한 페라이트계 스테인리스 강재 및 그 제조방법 Download PDF

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Publication number
WO2016104883A8
WO2016104883A8 PCT/KR2015/004410 KR2015004410W WO2016104883A8 WO 2016104883 A8 WO2016104883 A8 WO 2016104883A8 KR 2015004410 W KR2015004410 W KR 2015004410W WO 2016104883 A8 WO2016104883 A8 WO 2016104883A8
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WIPO (PCT)
Prior art keywords
stainless steel
ferritic stainless
manufacturing same
excellent ductility
less
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PCT/KR2015/004410
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English (en)
French (fr)
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WO2016104883A1 (ko
Inventor
박수호
심재홍
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주식회사 포스코
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Priority to US15/529,263 priority Critical patent/US20170283894A1/en
Priority to ES15873411T priority patent/ES2767505T3/es
Priority to EP15873411.1A priority patent/EP3239335B1/en
Priority to CN201580071217.4A priority patent/CN107109598B/zh
Priority to JP2017533577A priority patent/JP6605032B2/ja
Publication of WO2016104883A1 publication Critical patent/WO2016104883A1/ko
Publication of WO2016104883A8 publication Critical patent/WO2016104883A8/ko

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    • 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
    • C21D9/0081—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for slabs; for billets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
    • B22D11/002—Stainless steels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
    • B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
    • 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
    • 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
    • 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
    • C21D8/021—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular fabrication or treatment of ingot or slab
    • 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
    • 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
    • C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
    • 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

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  • 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 Sheet Steel (AREA)
  • Heat Treatment Of Steel (AREA)
  • Continuous Casting (AREA)

Abstract

연성이 우수한 페라이트계 스테인리스 강재 및 그 제조방법이 개시된다. 본 발명의 일 측면의 일 실시형태는, 중량%로, C: 0.005~0.1%, Si: 0.01~2.0%, Mn: 0.01~1.5%, P: 0.05% 이하, S: 0.005% 이하, Cr: 10~30%, Ti: 0.01~0.10%, Al: 0.01~0.15%, N: 0.005~0.03%, 잔부 Fe 및 불가피한 불순물을 포함하고, 페라이트 기지에, 3.5×106개/mm2 이하의 Ti(CN) 독립 석출물을 포함하는 페라이트계 스테인리스 강재를 제공한다.
PCT/KR2015/004410 2014-12-26 2015-04-30 연성이 우수한 페라이트계 스테인리스 강재 및 그 제조방법 WO2016104883A1 (ko)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US15/529,263 US20170283894A1 (en) 2014-12-26 2015-04-30 Ferritic stainless steel having excellent ductility and method for manufacturing same
ES15873411T ES2767505T3 (es) 2014-12-26 2015-04-30 Acero inoxidable ferrítico con excelente ductilidad y método de fabricación del mismo
EP15873411.1A EP3239335B1 (en) 2014-12-26 2015-04-30 Ferritic stainless steel having excellent ductility and method for manufacturing same
CN201580071217.4A CN107109598B (zh) 2014-12-26 2015-04-30 延展性优异的铁素体系不锈钢材及其制造方法
JP2017533577A JP6605032B2 (ja) 2014-12-26 2015-04-30 延性に優れたフェライト系ステンレス鋼材及びその製造方法

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20140190545 2014-12-26
KR10-2014-0190545 2014-12-26
KR10-2015-0061378 2015-04-30
KR1020150061378A KR101553607B1 (ko) 2014-12-26 2015-04-30 연성이 우수한 페라이트계 스테인리스 강재 및 그 제조방법

Publications (2)

Publication Number Publication Date
WO2016104883A1 WO2016104883A1 (ko) 2016-06-30
WO2016104883A8 true WO2016104883A8 (ko) 2017-01-19

Family

ID=54248455

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PCT/KR2015/004410 WO2016104883A1 (ko) 2014-12-26 2015-04-30 연성이 우수한 페라이트계 스테인리스 강재 및 그 제조방법

Country Status (7)

Country Link
US (1) US20170283894A1 (ko)
EP (1) EP3239335B1 (ko)
JP (1) JP6605032B2 (ko)
KR (1) KR101553607B1 (ko)
CN (1) CN107109598B (ko)
ES (1) ES2767505T3 (ko)
WO (1) WO2016104883A1 (ko)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6022097B1 (ja) * 2016-03-30 2016-11-09 日新製鋼株式会社 Ｔｉ含有フェライト系ステンレス鋼板および製造方法
KR101835021B1 (ko) * 2016-09-28 2018-03-09 주식회사 포스코 카본 슬러지 흡착이 저감된 배기계 열교환기용 페라이트계 스테인리스강 및 이의 제조 방법
KR102020511B1 (ko) * 2017-12-14 2019-09-10 주식회사 포스코 충격 인성이 우수한 페라이트계 스테인리스강 및 그 제조방법
KR102123665B1 (ko) * 2018-10-23 2020-06-18 주식회사 포스코 클램프용 고강도 페라이트계 스테인리스강 및 그 제조방법
CN109648064B (zh) * 2019-01-25 2021-04-20 北京科技大学 一种超级奥氏体不锈钢凝固组织σ相变性的方法

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JP3422871B2 (ja) * 1995-04-11 2003-06-30 新日本製鐵株式会社 溶接性に優れたフェライト系ステンレス鋼
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Also Published As

Publication number Publication date
JP2018505308A (ja) 2018-02-22
CN107109598B (zh) 2018-09-14
EP3239335B1 (en) 2019-11-13
ES2767505T3 (es) 2020-06-17
WO2016104883A1 (ko) 2016-06-30
EP3239335A4 (en) 2017-11-29
CN107109598A (zh) 2017-08-29
JP6605032B2 (ja) 2019-11-13
US20170283894A1 (en) 2017-10-05
EP3239335A1 (en) 2017-11-01
KR101553607B1 (ko) 2015-09-17

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