EP3239341A4 - Austenitic stainless steel having excellent flexibility - Google Patents

Austenitic stainless steel having excellent flexibility Download PDF

Info

Publication number
EP3239341A4
EP3239341A4 EP15873501.9A EP15873501A EP3239341A4 EP 3239341 A4 EP3239341 A4 EP 3239341A4 EP 15873501 A EP15873501 A EP 15873501A EP 3239341 A4 EP3239341 A4 EP 3239341A4
Authority
EP
European Patent Office
Prior art keywords
stainless steel
austenitic stainless
excellent flexibility
flexibility
austenitic
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Withdrawn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
EP15873501.9A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3239341A1 (en
Inventor
Hyung Gu Kang
Gyu Jin Jo
Dong Chul Chae
Jae Hwa 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 EP3239341A1 publication Critical patent/EP3239341A1/en
Publication of EP3239341A4 publication Critical patent/EP3239341A4/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Withdrawn legal-status Critical Current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
    • C22C38/40—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
    • 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
    • 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
    • C22C38/02—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
    • C22C38/18—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
    • 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
    • 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
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C2202/00—Physical properties

Landscapes

  • 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 Steel (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Materials For Medical Uses (AREA)
EP15873501.9A 2014-12-26 2015-12-01 Austenitic stainless steel having excellent flexibility Withdrawn EP3239341A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020140191165A KR101659186B1 (ko) 2014-12-26 2014-12-26 가요성이 우수한 오스테나이트계 스테인리스강
PCT/KR2015/012973 WO2016104974A1 (ko) 2014-12-26 2015-12-01 가요성이 우수한 오스테나이트계 스테인리스강

Publications (2)

Publication Number Publication Date
EP3239341A1 EP3239341A1 (en) 2017-11-01
EP3239341A4 true EP3239341A4 (en) 2018-10-31

Family

ID=56150947

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15873501.9A Withdrawn EP3239341A4 (en) 2014-12-26 2015-12-01 Austenitic stainless steel having excellent flexibility

Country Status (6)

Country Link
US (1) US20170349985A1 (ko)
EP (1) EP3239341A4 (ko)
JP (1) JP2018502991A (ko)
KR (1) KR101659186B1 (ko)
CN (1) CN107429367A (ko)
WO (1) WO2016104974A1 (ko)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101756701B1 (ko) * 2015-12-23 2017-07-12 주식회사 포스코 가공성이 향상된 오스테나이트계 스테인리스강
WO2017171178A1 (ko) * 2016-03-28 2017-10-05 엘지전자 주식회사 스테인리스강 및 상기 스테인리스강으로 이루어지는 배관
KR101923922B1 (ko) * 2016-12-23 2018-11-30 주식회사 포스코 표면특성이 우수한 오스테나이트계 스테인리스강 가공품 및 이의 제조 방법
KR20180104513A (ko) 2017-03-13 2018-09-21 엘지전자 주식회사 공기 조화기
KR20180104507A (ko) 2017-03-13 2018-09-21 엘지전자 주식회사 공기 조화기
KR20180104514A (ko) * 2017-03-13 2018-09-21 엘지전자 주식회사 공기 조화기
KR20180104511A (ko) 2017-03-13 2018-09-21 엘지전자 주식회사 공기 조화기
KR20180104509A (ko) 2017-03-13 2018-09-21 엘지전자 주식회사 공기 조화기
KR20180104520A (ko) 2017-03-13 2018-09-21 엘지전자 주식회사 공기 조화기
KR20180104506A (ko) 2017-03-13 2018-09-21 엘지전자 주식회사 공기 조화기
KR102357608B1 (ko) * 2017-03-13 2022-02-04 엘지전자 주식회사 공기 조화기
KR20180104508A (ko) 2017-03-13 2018-09-21 엘지전자 주식회사 공기 조화기
KR20180104521A (ko) 2017-03-13 2018-09-21 엘지전자 주식회사 공기 조화기
KR20180104519A (ko) * 2017-03-13 2018-09-21 엘지전자 주식회사 공기 조화기
KR20180111416A (ko) 2017-03-31 2018-10-11 엘지전자 주식회사 연성 스테인리스 강관
KR20190000254A (ko) 2017-06-22 2019-01-02 엘지전자 주식회사 공기 조화기
KR102419898B1 (ko) * 2017-06-26 2022-07-12 엘지전자 주식회사 가스 히트 펌프 시스템
KR102364389B1 (ko) * 2017-09-27 2022-02-17 엘지전자 주식회사 공기 조화기
US11457783B2 (en) 2019-06-05 2022-10-04 Lg Electronics Inc. Cleaner

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0387336A (ja) * 1989-08-30 1991-04-12 Nisshin Steel Co Ltd 高級洋食器用非磁性オーステナイト系ステンレス鋼
JPH0770705A (ja) * 1993-09-03 1995-03-14 Aichi Steel Works Ltd 熱膨張特性に優れたオーステナイトステンレス鋼
JPH07150307A (ja) * 1993-11-30 1995-06-13 Kurimoto Ltd オーステナイト系ステンレス鋼製のｔ頭ボルトおよびその製造方法
JPH09263905A (ja) * 1996-03-29 1997-10-07 Nisshin Steel Co Ltd 軟質オーステナイト系ステンレス鋼
JPH11181550A (ja) * 1997-12-17 1999-07-06 Sanyo Special Steel Co Ltd 冷間加工性の良好なオーステナイト系ステンレス鋼
JPH11350089A (ja) * 1998-06-12 1999-12-21 Nisshin Steel Co Ltd 抗菌性に優れ高加工性を具備したオーステナイト系ステンレス鋼およびその製造方法
JP2000248339A (ja) * 1999-02-26 2000-09-12 Nisshin Steel Co Ltd 加工性及び耐食性に優れたオーステナイト系快削ステンレス鋼
JP2000303152A (ja) * 1999-04-20 2000-10-31 Nisshin Steel Co Ltd 抗菌性に優れ、２次加工での穴拡げ加工性に優れたオーステナイト系ステンレス鋼およびその製造方法
US20020015655A1 (en) * 2000-05-16 2002-02-07 Satoshi Suzuki Austenitic stainless steel excellent in fine blankability
EP1221494A1 (en) * 2001-01-09 2002-07-10 Nisshin Steel Co., Ltd. An austenitic stainless steel less crack-sensitive during forming and a manufacturing method thereof
EP1306600A1 (en) * 2000-08-01 2003-05-02 Nisshin Steel Co., Ltd. Stainless steel oil feeding pipe
EP1306258A1 (en) * 2000-08-01 2003-05-02 Nisshin Steel Co., Ltd. Stainless steel fuel tank for automobile
JP2003129188A (ja) * 2001-10-16 2003-05-08 Nisshin Steel Co Ltd ステンレス鋼製フレキシブル管又はダクト管
EP2060646A1 (en) * 2006-12-27 2009-05-20 Nippon Steel & Sumikin Stainless Steel Corporation Stainless steel sheet for structural members excellent in impact -absorbing characteristics

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09310155A (ja) * 1996-05-16 1997-12-02 Nkk Corp 加工後の表面特性に優れたオーステナイトステンレス鋼
JPH1036922A (ja) * 1996-07-23 1998-02-10 Kawasaki Steel Corp オーステナイト系ステンレス鋼板の結晶粒径制御方法
JP4907151B2 (ja) * 2005-11-01 2012-03-28 新日鐵住金ステンレス株式会社 高圧水素ガス用オ−ステナイト系高Ｍｎステンレス鋼
JP2008208430A (ja) * 2007-02-27 2008-09-11 Nippon Steel & Sumikin Stainless Steel Corp 軟質オーステナイト系ステンレス鋼およびその製造方法
US8337749B2 (en) * 2007-12-20 2012-12-25 Ati Properties, Inc. Lean austenitic stainless steel
EP2245202B1 (en) 2007-12-20 2011-08-31 ATI Properties, Inc. Austenitic stainless steel low in nickel containing stabilizing elements
JP5448023B2 (ja) * 2008-02-12 2014-03-19 独立行政法人物質・材料研究機構 塑性加工性に優れた鋼細線又は薄帯鋼板
JP5308726B2 (ja) * 2008-06-17 2013-10-09 新日鐵住金ステンレス株式会社 微細粒組織を有するプレス成形用オーステナイト系ステンレス鋼板およびその製造方法
KR20100069875A (ko) * 2008-12-17 2010-06-25 주식회사 포스코 열간가공성이 우수한 고망간 오스테나이트계 스테인리스강
JP5500960B2 (ja) * 2009-12-01 2014-05-21 新日鐵住金ステンレス株式会社 耐応力腐食割れ性と加工性に優れた微細粒オーステナイト系ステンレス鋼板
KR101177488B1 (ko) * 2009-12-29 2012-08-27 주식회사 포스코 초고강도 고내식 스테인리스 합금 및 그 제조방법
CN103534373B (zh) * 2011-03-01 2017-05-17 新日铁住金株式会社 激光加工用金属板和激光加工用不锈钢板的制造方法
JP5920691B2 (ja) * 2011-06-22 2016-05-18 日本精線株式会社 ソーワイヤー用の高強度金属細線とその製造方法、並びに該金属細線を用いたソーワイヤー
KR101554771B1 (ko) * 2012-12-20 2015-09-21 주식회사 포스코 고연성 린 듀플렉스 스테인리스강.
JP6340870B2 (ja) * 2014-03-31 2018-06-13 新日鐵住金株式会社 オーステナイト系ステンレス鋼

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0387336A (ja) * 1989-08-30 1991-04-12 Nisshin Steel Co Ltd 高級洋食器用非磁性オーステナイト系ステンレス鋼
JPH0770705A (ja) * 1993-09-03 1995-03-14 Aichi Steel Works Ltd 熱膨張特性に優れたオーステナイトステンレス鋼
JPH07150307A (ja) * 1993-11-30 1995-06-13 Kurimoto Ltd オーステナイト系ステンレス鋼製のｔ頭ボルトおよびその製造方法
JPH09263905A (ja) * 1996-03-29 1997-10-07 Nisshin Steel Co Ltd 軟質オーステナイト系ステンレス鋼
JPH11181550A (ja) * 1997-12-17 1999-07-06 Sanyo Special Steel Co Ltd 冷間加工性の良好なオーステナイト系ステンレス鋼
JPH11350089A (ja) * 1998-06-12 1999-12-21 Nisshin Steel Co Ltd 抗菌性に優れ高加工性を具備したオーステナイト系ステンレス鋼およびその製造方法
JP2000248339A (ja) * 1999-02-26 2000-09-12 Nisshin Steel Co Ltd 加工性及び耐食性に優れたオーステナイト系快削ステンレス鋼
JP2000303152A (ja) * 1999-04-20 2000-10-31 Nisshin Steel Co Ltd 抗菌性に優れ、２次加工での穴拡げ加工性に優れたオーステナイト系ステンレス鋼およびその製造方法
US20020015655A1 (en) * 2000-05-16 2002-02-07 Satoshi Suzuki Austenitic stainless steel excellent in fine blankability
EP1306600A1 (en) * 2000-08-01 2003-05-02 Nisshin Steel Co., Ltd. Stainless steel oil feeding pipe
EP1306258A1 (en) * 2000-08-01 2003-05-02 Nisshin Steel Co., Ltd. Stainless steel fuel tank for automobile
EP1221494A1 (en) * 2001-01-09 2002-07-10 Nisshin Steel Co., Ltd. An austenitic stainless steel less crack-sensitive during forming and a manufacturing method thereof
JP2003129188A (ja) * 2001-10-16 2003-05-08 Nisshin Steel Co Ltd ステンレス鋼製フレキシブル管又はダクト管
EP2060646A1 (en) * 2006-12-27 2009-05-20 Nippon Steel & Sumikin Stainless Steel Corporation Stainless steel sheet for structural members excellent in impact -absorbing characteristics

Also Published As

Publication number Publication date
JP2018502991A (ja) 2018-02-01
CN107429367A (zh) 2017-12-01
KR101659186B1 (ko) 2016-09-23
US20170349985A1 (en) 2017-12-07
WO2016104974A1 (ko) 2016-06-30
EP3239341A1 (en) 2017-11-01
KR20160079998A (ko) 2016-07-07

Similar Documents

Publication Publication Date Title
EP3239341A4 (en) Austenitic stainless steel having excellent flexibility
EP3508602A4 (en) AUSTENITIC STAINLESS STEEL
EP3508598A4 (en) FERRITIC STAINLESS STEEL
EP3309274A4 (en) HIGH-Cr AUSTENITIC STAINLESS STEEL
ZA201606617B (en) Austenitic stainless steel
EP3508597A4 (en) FERRITIC STAINLESS STEEL
SG11201701799RA (en) Austenitic stainless steel sheet
EP3178958A4 (en) Austenitic stainless steel
EP3441495A4 (en) AUSTENITIC STAINLESS STEEL MATERIAL
PL3322830T3 (pl) Martenzytyczna stal nierdzewna
EP3604589A4 (en) FERRITIC STAINLESS STEEL
EP3276029A4 (en) Stainless steel having excellent brazeability
EP3530769A4 (en) MARTENSITIC STAINLESS STEEL SHEET
EP3287536A4 (en) Martensitic stainless steel
EP3480330A4 (en) AUSTENITIC STAINLESS STEEL
EP3118342A4 (en) Ferritic stainless steel
EP3102714A4 (en) Duplex stainless steel
EP3318654A4 (en) Ferrite stainless steel sheet
EP3339462A4 (en) STAINLESS STEEL SHEET BASED ON AUSTENITY
EP3318653A4 (en) Ferrite-based stainless steel
EP3162920A4 (en) Sn-PLATED STAINLESS STEEL SHEET
EP3396000A4 (en) AUSTENITIC STAINLESS STEEL TUBE HAVING EXCELLENT WRINKLE RESISTANCE
EP3444371A4 (en) BLECH MADE OF MARTIN STAINLESS STEEL
EP3124654A4 (en) Stainless steel plate
EP3339461A4 (en) STAINLESS STEEL SHEET

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: 20170621

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

AX Request for extension of the european patent

Extension state: BA ME

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: POSCO

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
RIC1 Information provided on ipc code assigned before grant

Ipc: C22C 38/02 20060101ALI20180227BHEP

Ipc: C22C 38/04 20060101ALI20180227BHEP

Ipc: C21D 6/00 20060101ALI20180227BHEP

Ipc: C22C 38/42 20060101AFI20180227BHEP

Ipc: C21D 9/46 20060101ALI20180227BHEP

Ipc: C22C 38/00 20060101ALI20180227BHEP

Ipc: C22C 38/58 20060101ALI20180227BHEP

Ipc: C21D 8/02 20060101ALI20180227BHEP

A4 Supplementary search report drawn up and despatched

Effective date: 20180928

RIC1 Information provided on ipc code assigned before grant

Ipc: C21D 8/02 20060101ALI20180924BHEP

Ipc: C22C 38/00 20060101ALI20180924BHEP

Ipc: C22C 38/04 20060101ALI20180924BHEP

Ipc: C21D 6/00 20060101ALI20180924BHEP

Ipc: C22C 38/02 20060101ALI20180924BHEP

Ipc: C21D 9/46 20060101ALI20180924BHEP

Ipc: C22C 38/58 20060101ALI20180924BHEP

Ipc: C22C 38/42 20060101AFI20180924BHEP

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

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20190521

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

Free format text: STATUS: EXAMINATION IS IN PROGRESS

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

RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: POSCO HOLDINGS INC.

18D Application deemed to be withdrawn

Effective date: 20220705