WO2013048181A3 - 내식성 및 열간가공성이 우수한 저합금 듀플렉스 스테인리스강 - Google Patents

내식성 및 열간가공성이 우수한 저합금 듀플렉스 스테인리스강 Download PDF

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Publication number
WO2013048181A3
WO2013048181A3 PCT/KR2012/007919 KR2012007919W WO2013048181A3 WO 2013048181 A3 WO2013048181 A3 WO 2013048181A3 KR 2012007919 W KR2012007919 W KR 2012007919W WO 2013048181 A3 WO2013048181 A3 WO 2013048181A3
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WO
WIPO (PCT)
Prior art keywords
stainless steel
low
duplex stainless
corrosion resistance
hot working
Prior art date
Application number
PCT/KR2012/007919
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English (en)
French (fr)
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WO2013048181A2 (ko
Inventor
김지수
안상곤
김봉운
김광태
Original Assignee
주식회사 포스코
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 주식회사 포스코 filed Critical 주식회사 포스코
Priority to US14/347,827 priority Critical patent/US10280491B2/en
Priority to EP12836056.7A priority patent/EP2762597B1/en
Publication of WO2013048181A2 publication Critical patent/WO2013048181A2/ko
Publication of WO2013048181A3 publication Critical patent/WO2013048181A3/ko

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    • 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
    • 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
    • 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • 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
    • C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical 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)
  • Paper (AREA)

Abstract

본 발명은 담수설비, 펄프 및 제지 산업설비, 화학설비, 건축설비를 포함하는 산업설비 등에 사용되는 저합금 듀플렉스 스테인리스강으로서, 중량%로, C: 0 초과 0.06% 이하, Si: 0 초과 1.5% 이하, Mn: 0 초과 2% 이하, Cr: 19~23%, Ni: 1.8~3.5%, Mo 0.5~1.0%, Cu: 0.3~1.0%, N: 0.16~0.30%를 함유하고, Al: 0.003~0.05%, B: 0.001~0.005%, Ca: 0.001~0.01%를 더 포함하되, 상기 스테인리스강의 소강 O의 함유량이 0.01% 이하이고, 나머지는 Fe 및 불가피한 불순물을 포함하는 내식성 및 열간가공성이 우수한 저합금 듀플렉스 스테인리스강을 제공한다.
PCT/KR2012/007919 2011-09-28 2012-09-28 내식성 및 열간가공성이 우수한 저합금 듀플렉스 스테인리스강 WO2013048181A2 (ko)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US14/347,827 US10280491B2 (en) 2011-09-28 2012-09-28 Low-alloy duplex stainless steel having outstanding corrosion resistance and hot working properties
EP12836056.7A EP2762597B1 (en) 2011-09-28 2012-09-28 Low-alloy duplex stainless steel having outstanding corrosion resistance and hot working properties

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2011-0098320 2011-09-28
KR1020110098320A KR20130034349A (ko) 2011-09-28 2011-09-28 내식성 및 열간가공성이 우수한 저합금 듀플렉스 스테인리스강

Publications (2)

Publication Number Publication Date
WO2013048181A2 WO2013048181A2 (ko) 2013-04-04
WO2013048181A3 true WO2013048181A3 (ko) 2013-05-23

Family

ID=47996645

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2012/007919 WO2013048181A2 (ko) 2011-09-28 2012-09-28 내식성 및 열간가공성이 우수한 저합금 듀플렉스 스테인리스강

Country Status (4)

Country Link
US (1) US10280491B2 (ko)
EP (1) EP2762597B1 (ko)
KR (1) KR20130034349A (ko)
WO (1) WO2013048181A2 (ko)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160080304A (ko) * 2014-12-26 2016-07-08 주식회사 포스코 심가공 특성이 우수한 듀플렉스 스테인리스강
CN108699645B (zh) 2016-02-17 2020-06-16 新日铁住金不锈钢株式会社 铁素体-奥氏体系二相不锈钢材及其制造方法
CN108396223B (zh) * 2018-03-29 2020-09-29 东北大学 一种超级奥氏体不锈钢及其合金成分优化设计方法
CN112063919B (zh) * 2020-07-31 2021-11-26 丽水市正阳电力设计院有限公司 一种双相不锈钢

Citations (4)

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Publication number Priority date Publication date Assignee Title
JPS58224155A (ja) * 1982-06-19 1983-12-26 Kawasaki Steel Corp ２相ステンレス継目無鋼管およびその製造方法
JP2010084220A (ja) * 2008-10-02 2010-04-15 Nippon Steel & Sumikin Stainless Steel Corp 衝撃靭性に優れた二相ステンレス熱間圧延鋼材とその製造方法
JP2010222695A (ja) * 2009-03-25 2010-10-07 Nippon Steel & Sumikin Stainless Steel Corp 耐食性の良好な省合金二相ステンレス鋼材とその製造方法
JP2010229459A (ja) * 2009-03-26 2010-10-14 Nippon Steel & Sumikin Stainless Steel Corp 耐食性の良好な省合金二相ステンレス鋼材とその製造方法

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JPS58197260A (ja) 1982-05-13 1983-11-16 Kobe Steel Ltd 酸性油井用２相系ステンレス鋼
SE451465B (sv) 1984-03-30 1987-10-12 Sandvik Steel Ab Ferrit-austenitiskt rostfritt stal mikrolegerat med molybden och koppar och anvendning av stalet
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FR2765243B1 (fr) 1997-06-30 1999-07-30 Usinor Acier inoxydable austenoferritique a tres bas nickel et presentant un fort allongement en traction
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US8043446B2 (en) 2001-04-27 2011-10-25 Research Institute Of Industrial Science And Technology High manganese duplex stainless steel having superior hot workabilities and method manufacturing thereof
KR100834595B1 (ko) 2001-10-30 2008-06-02 에이티아이 프로퍼티즈, 인코퍼레이티드 듀플렉스 스테인리스 스틸
JP4760032B2 (ja) 2004-01-29 2011-08-31 Ｊｆｅスチール株式会社 成形性に優れるオーステナイト・フェライト系ステンレス鋼
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JP2005271307A (ja) 2004-03-23 2005-10-06 Konica Minolta Business Technologies Inc 画像形成装置および画像形成装置の装置情報出力方法
KR20060074400A (ko) 2004-12-27 2006-07-03 주식회사 포스코 니켈 절감형 고내식성 2상 스테인리스강
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Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58224155A (ja) * 1982-06-19 1983-12-26 Kawasaki Steel Corp ２相ステンレス継目無鋼管およびその製造方法
JP2010084220A (ja) * 2008-10-02 2010-04-15 Nippon Steel & Sumikin Stainless Steel Corp 衝撃靭性に優れた二相ステンレス熱間圧延鋼材とその製造方法
JP2010222695A (ja) * 2009-03-25 2010-10-07 Nippon Steel & Sumikin Stainless Steel Corp 耐食性の良好な省合金二相ステンレス鋼材とその製造方法
JP2010229459A (ja) * 2009-03-26 2010-10-14 Nippon Steel & Sumikin Stainless Steel Corp 耐食性の良好な省合金二相ステンレス鋼材とその製造方法

Non-Patent Citations (1)

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Title
See also references of EP2762597A4 *

Also Published As

Publication number Publication date
US10280491B2 (en) 2019-05-07
WO2013048181A2 (ko) 2013-04-04
EP2762597B1 (en) 2017-02-01
US20150267285A1 (en) 2015-09-24
EP2762597A2 (en) 2014-08-06
KR20130034349A (ko) 2013-04-05
EP2762597A4 (en) 2015-08-19

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