EP3674434A4 - Low-ni austenitic stainless steel with excellent hot workability and hydrogen embrittlement resistance - Google Patents

Low-ni austenitic stainless steel with excellent hot workability and hydrogen embrittlement resistance Download PDF

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Publication number
EP3674434A4
EP3674434A4 EP18849053.6A EP18849053A EP3674434A4 EP 3674434 A4 EP3674434 A4 EP 3674434A4 EP 18849053 A EP18849053 A EP 18849053A EP 3674434 A4 EP3674434 A4 EP 3674434A4
Authority
EP
European Patent Office
Prior art keywords
low
stainless steel
austenitic stainless
hot workability
hydrogen embrittlement
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
EP18849053.6A
Other languages
German (de)
French (fr)
Other versions
EP3674434A1 (en
Inventor
Jae-Hwa Lee
Gyu Jin Jo
Mun-Soo Lee
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 EP3674434A1 publication Critical patent/EP3674434A1/en
Publication of EP3674434A4 publication Critical patent/EP3674434A4/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • C22C38/18—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
    • C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel 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
    • C22C38/40—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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/001—Austenite

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Heat Treatment Of Steel (AREA)
EP18849053.6A 2017-08-22 2018-08-06 Low-ni austenitic stainless steel with excellent hot workability and hydrogen embrittlement resistance Pending EP3674434A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020170105892A KR101952808B1 (en) 2017-08-22 2017-08-22 Low nickel austenitic stainless steel having excellent hot workability and hydrogen embrittlement resistance
PCT/KR2018/008871 WO2019039768A1 (en) 2017-08-22 2018-08-06 Low-ni austenitic stainless steel with excellent hot workability and hydrogen embrittlement resistance

Publications (2)

Publication Number Publication Date
EP3674434A1 EP3674434A1 (en) 2020-07-01
EP3674434A4 true EP3674434A4 (en) 2020-07-01

Family

ID=65439097

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18849053.6A Pending EP3674434A4 (en) 2017-08-22 2018-08-06 Low-ni austenitic stainless steel with excellent hot workability and hydrogen embrittlement resistance

Country Status (5)

Country Link
EP (1) EP3674434A4 (en)
JP (1) JP7117369B2 (en)
KR (1) KR101952808B1 (en)
CN (1) CN111212928B (en)
WO (1) WO2019039768A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102160735B1 (en) * 2018-08-13 2020-09-28 주식회사 포스코 Austenitic stainless steel with improved strength
KR102249965B1 (en) * 2019-05-28 2021-05-11 주식회사 포스코 Austenitic stainless steel having excellent corrosion resistance of weld
JP7262617B2 (en) * 2020-06-19 2023-04-21 ヒュンダイ スチール カンパニー Reinforcing bar and its manufacturing method
CN113981308B (en) * 2021-09-11 2022-08-23 广东省高端不锈钢研究院有限公司 Preparation method of 8K mirror plate manganese-nitrogen series nickel-saving austenitic stainless steel

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030102058A1 (en) * 2001-04-12 2003-06-05 Nisshin Steel Co., Ltd. Soft stainless steel sheet excellent in workability
US20090041613A1 (en) * 2007-08-09 2009-02-12 Satoshi Suzuki Ni-reduced austenite stainless steel
US20100047105A1 (en) * 2007-12-20 2010-02-25 Ati Properties, Inc. Lean Austenitic Stainless Steel
US20120034126A1 (en) * 2009-01-30 2012-02-09 Sandvik Intellectual Property Ab STAINLESS AUSTENITIC LOW Ni STEEL ALLOY
JP2012172212A (en) * 2011-02-22 2012-09-10 Nisshin Steel Co Ltd Low nickel austenitic stainless steel and method for manufacturing hot-rolled steel sheet of the same

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0686645B2 (en) * 1989-05-31 1994-11-02 日本金属工業株式会社 Nickel-saving austenitic stainless steel with excellent hot workability
JP2004238700A (en) * 2003-02-07 2004-08-26 Nisshin Steel Co Ltd Austenitic stainless steel sheet suitable for press molded product with high surface smoothness
JP2007063632A (en) 2005-08-31 2007-03-15 Nippon Metal Ind Co Ltd Austenitic stainless steel
KR100857697B1 (en) * 2006-12-28 2008-09-08 주식회사 포스코 ethod of manufacturing an austenitic stainless steel added low Ni for improving hot workability
JP5349015B2 (en) * 2008-11-19 2013-11-20 日新製鋼株式会社 Method for producing Ni-saving austenitic stainless hot-rolled steel sheet, slab and hot-rolled steel sheet
KR20100069875A (en) * 2008-12-17 2010-06-25 주식회사 포스코 Austenitic stainless steel having excellent hot workability with high manganese
CN102605291A (en) * 2012-03-27 2012-07-25 宝山钢铁股份有限公司 Ni-saving austenitic stainless steel cold-rolled sheet with excellent processability and manufacturing method thereof
FI124993B (en) * 2012-09-27 2015-04-15 Outokumpu Oy Austenitic stainless steel
CN102994916A (en) * 2012-11-23 2013-03-27 四川金广技术开发有限公司 Processable nickel-saving type austenitic stainless steel and production method thereof
JP2014189801A (en) 2013-03-26 2014-10-06 Nisshin Steel Co Ltd WELD ARTICLE OF LOW Ni AUSTENITIC STAINLESS STEEL SHEET
JP6105996B2 (en) * 2013-03-26 2017-03-29 日新製鋼株式会社 Low Ni austenitic stainless steel sheet and processed product obtained by processing the steel sheet
KR20150074697A (en) 2013-12-24 2015-07-02 주식회사 포스코 Low-nickel containing stainless steels

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030102058A1 (en) * 2001-04-12 2003-06-05 Nisshin Steel Co., Ltd. Soft stainless steel sheet excellent in workability
US20090041613A1 (en) * 2007-08-09 2009-02-12 Satoshi Suzuki Ni-reduced austenite stainless steel
US20100047105A1 (en) * 2007-12-20 2010-02-25 Ati Properties, Inc. Lean Austenitic Stainless Steel
US20120034126A1 (en) * 2009-01-30 2012-02-09 Sandvik Intellectual Property Ab STAINLESS AUSTENITIC LOW Ni STEEL ALLOY
JP2012172212A (en) * 2011-02-22 2012-09-10 Nisshin Steel Co Ltd Low nickel austenitic stainless steel and method for manufacturing hot-rolled steel sheet of the same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2019039768A1 *

Also Published As

Publication number Publication date
CN111212928A (en) 2020-05-29
WO2019039768A1 (en) 2019-02-28
EP3674434A1 (en) 2020-07-01
JP7117369B2 (en) 2022-08-12
KR101952808B1 (en) 2019-02-28
CN111212928B (en) 2022-11-01
JP2020531688A (en) 2020-11-05

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