EP2376666A4 - Surface decarburization-restrained steel and manufacturing method thereof - Google Patents

Surface decarburization-restrained steel and manufacturing method thereof

Info

Publication number
EP2376666A4
EP2376666A4 EP09835310.5A EP09835310A EP2376666A4 EP 2376666 A4 EP2376666 A4 EP 2376666A4 EP 09835310 A EP09835310 A EP 09835310A EP 2376666 A4 EP2376666 A4 EP 2376666A4
Authority
EP
European Patent Office
Prior art keywords
manufacturing
surface decarburization
restrained steel
restrained
steel
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Withdrawn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
EP09835310.5A
Other languages
German (de)
French (fr)
Other versions
EP2376666A2 (en
Inventor
Jae-Seung Lee
Sang-Yoon Lee
Hoe-Young Jung
Byoung-Ju Park
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 EP2376666A2 publication Critical patent/EP2376666A2/en
Publication of EP2376666A4 publication Critical patent/EP2376666A4/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Withdrawn legal-status Critical Current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
    • C22C38/02—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
    • C22C38/001—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
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing 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
    • C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium 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
    • C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
EP09835310.5A 2008-12-26 2009-12-28 Surface decarburization-restrained steel and manufacturing method thereof Withdrawn EP2376666A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020080134348A KR101115761B1 (en) 2008-12-26 2008-12-26 Steel restrained from surface decarborization and manufacturing method for the same
PCT/KR2009/007846 WO2010074544A2 (en) 2008-12-26 2009-12-28 Surface decarburization-restrained steel and manufacturing method thereof

Publications (2)

Publication Number Publication Date
EP2376666A2 EP2376666A2 (en) 2011-10-19
EP2376666A4 true EP2376666A4 (en) 2014-03-26

Family

ID=42288331

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09835310.5A Withdrawn EP2376666A4 (en) 2008-12-26 2009-12-28 Surface decarburization-restrained steel and manufacturing method thereof

Country Status (6)

Country Link
US (1) US20110247734A1 (en)
EP (1) EP2376666A4 (en)
JP (1) JP5581335B2 (en)
KR (1) KR101115761B1 (en)
CN (1) CN102264935B (en)
WO (1) WO2010074544A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102221352A (en) * 2011-03-21 2011-10-19 哈尔滨飞机工业集团有限责任公司 Method for measuring depth of alloy steel decarbonized layer
CN107779751B (en) * 2017-10-31 2020-08-11 攀钢集团攀枝花钢铁研究院有限公司 Corrosion-resistant steel rail for high-speed railway and production method thereof
KR102326047B1 (en) * 2019-12-20 2021-11-15 주식회사 포스코 B-containing steel wire rod with excellent hardenability and corrosion resistance and manufacturing method of the same
WO2023190867A1 (en) * 2022-03-30 2023-10-05 日本製鉄株式会社 Steel member and steel sheet

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008133539A (en) * 2006-10-31 2008-06-12 Kobe Steel Ltd Hard drawn spring steel wire superior in fatigue characteristic and wire drawing property

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5927370B2 (en) * 1980-07-05 1984-07-05 新日本製鐵株式会社 High strength cold rolled steel plate for press working
JPH03197642A (en) * 1989-12-26 1991-08-29 Kawasaki Steel Corp Steel sheet for working having excellent slidability
JPH03232953A (en) * 1990-02-09 1991-10-16 Kawasaki Steel Corp Zinc-series coated steel sheet for working excellent in spot weldability
JPH07286254A (en) * 1994-04-21 1995-10-31 Sumitomo Metal Ind Ltd Steel sheet excellent in secondary working brittleness resistance and its production
JP3226737B2 (en) * 1994-12-21 2001-11-05 三菱製鋼株式会社 Low decarburized spring steel
US6503344B2 (en) * 1999-02-05 2003-01-07 Houghton Durferrit Gmbh Boronizing agent in paste form
JP4012475B2 (en) * 2003-02-21 2007-11-21 新日本製鐵株式会社 Machine structural steel excellent in cold workability and low decarburization and method for producing the same
JP4681290B2 (en) * 2004-12-03 2011-05-11 本田技研工業株式会社 High strength steel plate and manufacturing method thereof
EP1715140A1 (en) * 2005-04-21 2006-10-25 Siemens Aktiengesellschaft Turbine blade with a cover plate and a protective layer on the cover plate
JPWO2006118242A1 (en) * 2005-04-28 2008-12-18 アイシン・エィ・ダブリュ株式会社 Steel member and heat treatment method thereof
JP4473786B2 (en) * 2005-06-08 2010-06-02 株式会社神戸製鋼所 High strength steel with excellent delayed fracture resistance
JP2007009300A (en) * 2005-07-01 2007-01-18 Daido Steel Co Ltd Method for manufacturing cold-coiled wire rod for spring
KR101253790B1 (en) * 2005-12-27 2013-04-12 주식회사 포스코 High-strength steel part having excellent resistance for delayed fracture and method for producing the same
JP4847988B2 (en) * 2007-07-20 2011-12-28 株式会社神戸製鋼所 Spring wire with excellent corrosion fatigue characteristics

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008133539A (en) * 2006-10-31 2008-06-12 Kobe Steel Ltd Hard drawn spring steel wire superior in fatigue characteristic and wire drawing property

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SPIEKERMANN P: "LEGIERUNGEN - EIN BESONDERES PATENTRECHTLICHES PROBLEM? - LEGIERUNGSPRUEFUNG IM EUROPAEISCHEN PATENTAMT -", MITTEILUNGEN DER DEUTSCHEN PATENTANWAELTE, HEYMANN, KOLN, DE, 1 January 1993 (1993-01-01), pages 178 - 190, XP000961882, ISSN: 0026-6884 *

Also Published As

Publication number Publication date
JP2012514133A (en) 2012-06-21
US20110247734A1 (en) 2011-10-13
JP5581335B2 (en) 2014-08-27
EP2376666A2 (en) 2011-10-19
WO2010074544A3 (en) 2010-09-23
KR20100076336A (en) 2010-07-06
CN102264935A (en) 2011-11-30
WO2010074544A2 (en) 2010-07-01
KR101115761B1 (en) 2012-06-12
CN102264935B (en) 2014-09-03

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Legal Events

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

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17P Request for examination filed

Effective date: 20110630

AK Designated contracting states

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Designated state(s): 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 SE SI SK SM TR

RIN1 Information on inventor provided before grant (corrected)

Inventor name: JUNG, HOE-YOUNG

Inventor name: PARK, BYOUNG-JU

Inventor name: LEE, SANG-YOON

Inventor name: LEE, JAE-SEUNG

DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20140224

RIC1 Information provided on ipc code assigned before grant

Ipc: C22C 38/00 20060101AFI20140218BHEP

Ipc: C22C 38/32 20060101ALI20140218BHEP

Ipc: C22C 38/54 20060101ALI20140218BHEP

17Q First examination report despatched

Effective date: 20170102

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18D Application deemed to be withdrawn

Effective date: 20190710