EP3831978A4 - FERRITIC STAINLESS STEEL WITH THE ADDITION OF TI AND NB WITH EXCELLENT TENACITY OF LOW TEMPERATURE WELDING - Google Patents

FERRITIC STAINLESS STEEL WITH THE ADDITION OF TI AND NB WITH EXCELLENT TENACITY OF LOW TEMPERATURE WELDING Download PDF

Info

Publication number
EP3831978A4
EP3831978A4 EP18928736.0A EP18928736A EP3831978A4 EP 3831978 A4 EP3831978 A4 EP 3831978A4 EP 18928736 A EP18928736 A EP 18928736A EP 3831978 A4 EP3831978 A4 EP 3831978A4
Authority
EP
European Patent Office
Prior art keywords
welds
low
stainless steel
ferritic stainless
temperature toughness
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Withdrawn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
EP18928736.0A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3831978A1 (en
Inventor
Jong Chul Kim
Wan-Yi KIM
Il Chan JUNG
Jin-Suk Kim
Deok Chan Ahn
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 EP3831978A1 publication Critical patent/EP3831978A1/en
Publication of EP3831978A4 publication Critical patent/EP3831978A4/en
Withdrawn legal-status Critical Current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
    • C22C38/18—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
    • 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
    • C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/005—Manufacture of stainless steel
    • 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
    • C21D8/10—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
    • C21D8/105—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies of ferrous 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
EP18928736.0A 2018-08-03 2018-11-02 FERRITIC STAINLESS STEEL WITH THE ADDITION OF TI AND NB WITH EXCELLENT TENACITY OF LOW TEMPERATURE WELDING Withdrawn EP3831978A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020180090874A KR20200015265A (ko) 2018-08-03 2018-08-03 용접부 저온인성이 우수한 Ti, Nb 첨가 페라이트계 스테인리스강
PCT/KR2018/013229 WO2020027380A1 (ko) 2018-08-03 2018-11-02 용접부 저온인성이 우수한 ti, nb 첨가 페라이트계 스테인리스강

Publications (2)

Publication Number Publication Date
EP3831978A1 EP3831978A1 (en) 2021-06-09
EP3831978A4 true EP3831978A4 (en) 2021-09-08

Family

ID=69231991

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18928736.0A Withdrawn EP3831978A4 (en) 2018-08-03 2018-11-02 FERRITIC STAINLESS STEEL WITH THE ADDITION OF TI AND NB WITH EXCELLENT TENACITY OF LOW TEMPERATURE WELDING

Country Status (5)

Country Link
US (1) US20210310105A1 (zh)
EP (1) EP3831978A4 (zh)
KR (1) KR20200015265A (zh)
CN (1) CN112654727A (zh)
WO (1) WO2020027380A1 (zh)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5685923A (en) * 1994-12-28 1997-11-11 Nippon Steel Corporation Ferritic stainless steel bellows
US20040154708A1 (en) * 2002-03-27 2004-08-12 Akihiko Takahashi Cast piece and sheet of ferritic stainless steel, and method for production thereof
KR20100077244A (ko) * 2008-12-29 2010-07-08 주식회사 포스코 표면품질이 우수한 페라이트계 스테인리스강 및 그의 제조방법
KR20150000893A (ko) * 2013-03-29 2015-01-05 닛폰 스틸 앤드 스미킨 스테인레스 스틸 코포레이션 냉간 단조성 및 절삭성이 우수한 페라이트계 스테인리스 강선
KR20180000782A (ko) * 2016-06-23 2018-01-04 주식회사 포스코 용접부 저온인성이 우수한 페라이트계 스테인리스강

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08333656A (ja) * 1995-06-05 1996-12-17 Nippon Steel Corp ベローズ用フェライト系ステンレス鋼管
KR20000001715A (ko) 1998-06-12 2000-01-15 조현정 약품 재고 관리 시스템
JP4055252B2 (ja) 1998-06-18 2008-03-05 Ｊｆｅスチール株式会社 含クロム鋼の溶製方法
JP3448537B2 (ja) 2000-03-10 2003-09-22 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
JP3837083B2 (ja) * 2002-04-16 2006-10-25 新日本製鐵株式会社 溶接熱影響部靭性の優れた１パス大入熱溶接方法
JP4309140B2 (ja) * 2003-01-15 2009-08-05 新日鐵住金ステンレス株式会社 自動車排気系機器用フェライト系ステンレス鋼
KR100718410B1 (ko) * 2005-12-09 2007-05-14 가부시키가이샤 고베 세이코쇼 용접이음부의 저온 인성이 우수한 강판
KR20070068211A (ko) * 2005-12-26 2007-06-29 주식회사 포스코 대입열 용접에 적용되는 용접용 강재의 제조 방법 및대입열 용접에 의해 제조된 용접 구조물
KR100856306B1 (ko) * 2006-12-11 2008-09-03 주식회사 포스코 용접부의 저온 가공성이 우수한 페라이트계 스테인리스강
JP2009091654A (ja) * 2007-09-18 2009-04-30 Jfe Steel Kk 溶接性に優れたフェライト系ステンレス鋼
JP5242495B2 (ja) * 2009-05-08 2013-07-24 新日鐵住金ステンレス株式会社 高温耐久性に優れたボス材用フェライト系ステンレス鋼線
KR101239555B1 (ko) 2009-12-24 2013-03-06 주식회사 포스코 티타늄 첨가 페라이트계 스테인리스강 주편 등축정율 향상방법

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5685923A (en) * 1994-12-28 1997-11-11 Nippon Steel Corporation Ferritic stainless steel bellows
US20040154708A1 (en) * 2002-03-27 2004-08-12 Akihiko Takahashi Cast piece and sheet of ferritic stainless steel, and method for production thereof
KR20100077244A (ko) * 2008-12-29 2010-07-08 주식회사 포스코 표면품질이 우수한 페라이트계 스테인리스강 및 그의 제조방법
KR20150000893A (ko) * 2013-03-29 2015-01-05 닛폰 스틸 앤드 스미킨 스테인레스 스틸 코포레이션 냉간 단조성 및 절삭성이 우수한 페라이트계 스테인리스 강선
KR20180000782A (ko) * 2016-06-23 2018-01-04 주식회사 포스코 용접부 저온인성이 우수한 페라이트계 스테인리스강

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2020027380A1 *

Also Published As

Publication number Publication date
WO2020027380A1 (ko) 2020-02-06
US20210310105A1 (en) 2021-10-07
EP3831978A1 (en) 2021-06-09
KR20200015265A (ko) 2020-02-12
CN112654727A (zh) 2021-04-13

Similar Documents

Publication Publication Date Title
EP3508598A4 (en) FERRITIC STAINLESS STEEL
EP3760753A4 (en) AUSTENITIC STAINLESS STEEL WELDED JOINT
EP3604589A4 (en) FERRITIC STAINLESS STEEL
PL2907886T3 (pl) Blacha stalowa cienka walcowana na gorąco o dużej wytrzymałości mająca maksymalną wytrzymałość na rozciąganie wynoszącą 980 MPa lub więcej oraz mająca doskonałą utwardzalność przy wypalaniu i wiązkość w niskiej temperaturze
EP3508602A4 (en) AUSTENITIC STAINLESS STEEL
EP3309274A4 (en) HIGH-Cr AUSTENITIC STAINLESS STEEL
EP3050988A4 (en) High-strength steel sheet having excellent ductility and low-temperature toughness, and method for producing same
EP3239341A4 (en) Austenitic stainless steel having excellent flexibility
EP3173502A4 (en) Ferritic stainless steel and method for producing same, and heat exchanger equipped with ferritic stainless steel as member
EP2566994A4 (en) Low-nickel austenitic stainless steel and use of the steel
EP3480334A4 (en) FERRITIC STAINLESS STEEL, STEEL SHEET THEREOF AND METHODS OF PRODUCING THE SAME
EP3266898A4 (en) High-strength austenitic stainless steel having excellent hydrogen embrittlement resistance characteristics and method for producing same
EP2980235A4 (en) Steel plate with excellent hydrogen-induced cracking resistance and toughness of the weld heat affected zone, and steel tube for use as line pipe
EP3441495A4 (en) AUSTENITIC STAINLESS STEEL MATERIAL
EP3231883A4 (en) Ferritic stainless steel and process for producing same
EP3121304A4 (en) Ferritic stainless steel and production method therefor
SI3008222T1 (sl) Dupleks feritno avstenitno nerjavno jeklo
EP3278887A4 (en) Ferritic stainless steel sheet, cover member, and method for producing ferritic stainless steel sheet
EP3480330A4 (en) AUSTENITIC STAINLESS STEEL
EP3178958A4 (en) Austenitic stainless steel
EP3396000A4 (en) AUSTENITIC STAINLESS STEEL TUBE HAVING EXCELLENT WRINKLE RESISTANCE
EP3103889A4 (en) Hot-rolled and annealed ferritic stainless steel sheet, method for producing same, and cold-rolled and annealed ferritic stainless steel sheet
EP3835450A4 (en) AUSTENITIC STAINLESS STEEL WITH EXCELLENT PIPE EXPANSIBILITY AND RESISTANCE TO AGING CRACKING
EP3889296A4 (en) HIGH-STRENGTH STEEL SHEET WITH OUTSTANDING DUCTILITY AND LOW TEMPERATURE RESISTANCE AND PROCESS FOR PRODUCING IT
EP3604595A4 (en) AUSTENITIC STAINLESS STEEL WITH HIGH CONTENT IN MN INTENDED FOR USE IN THE PRESENCE OF HYDROGEN HAVING EXCELLENT WELDABILITY, WELDED JOINT USING SAID STEEL, DEVICE FOR USE IN THE PRESENCE OF HYDROGEN USING SAME STEEL, AND PROCESS

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20210224

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

A4 Supplementary search report drawn up and despatched

Effective date: 20210805

RIC1 Information provided on ipc code assigned before grant

Ipc: C22C 38/06 20060101ALI20210730BHEP

Ipc: C22C 38/04 20060101ALI20210730BHEP

Ipc: C22C 38/02 20060101ALI20210730BHEP

Ipc: C22C 38/00 20060101ALI20210730BHEP

Ipc: C22C 38/28 20060101ALI20210730BHEP

Ipc: C22C 38/26 20060101AFI20210730BHEP

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20220304