US20070181232A1 - Cold rolled steel sheet and hot dipped steel sheet with superior strength and bake hardenability and method for manufacturing the steel sheets - Google Patents

Cold rolled steel sheet and hot dipped steel sheet with superior strength and bake hardenability and method for manufacturing the steel sheets Download PDF

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Publication number
US20070181232A1
US20070181232A1 US10/594,140 US59414005A US2007181232A1 US 20070181232 A1 US20070181232 A1 US 20070181232A1 US 59414005 A US59414005 A US 59414005A US 2007181232 A1 US2007181232 A1 US 2007181232A1
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US
United States
Prior art keywords
steel sheet
less
hot
steel
grain
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.)
Abandoned
Application number
US10/594,140
Other languages
English (en)
Inventor
Seong-Ho Han
Tae-Kyu Kim
Sang-Ho Han
San-Kyung Ko
Kwang-Geun Chin
Hee-Jae Kang
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
Priority claimed from KR1020040103610A external-priority patent/KR20050095537A/ko
Application filed by Posco Co Ltd filed Critical Posco Co Ltd
Assigned to POSCO reassignment POSCO ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHIN, KWANG-GEUN, HAN, SANG-HO, HAN, SEONG-HO, KANG, HEE-JAE, KIM, TAE-KYU, KO, SAN-KYUNG
Publication of US20070181232A1 publication Critical patent/US20070181232A1/en
Priority to US12/499,829 priority Critical patent/US20090272468A1/en
Abandoned legal-status Critical Current

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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
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • 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
    • 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
    • C22C38/04—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
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium

Definitions

  • Requirements for a bake-hardenable cold-rolled steel sheet include a high bake hardening value, a low aging index at room temperature, and excellent secondary work embrittlement resistance.
  • the steel sheet of the invention has excellent bake hardenability, aging resistance, secondary work embrittlement resistance, and a tensile strength of 300 MPa or more.
  • inventive steels have excellent bake hardenability and secondary work embrittlement resistance, and are not deteriorated due to aging under long-term duration of 6 months or more at a high temperature of the tropic region.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
US10/594,140 2004-03-25 2005-03-22 Cold rolled steel sheet and hot dipped steel sheet with superior strength and bake hardenability and method for manufacturing the steel sheets Abandoned US20070181232A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/499,829 US20090272468A1 (en) 2004-03-25 2009-07-09 Method for Manufacturing Bake-Hardenable High-Strength Cold-Rolled Steel Sheet

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
KR10-2004-0020204 2004-03-25
KR20040020204 2004-03-25
KR10-2004-0103610 2004-12-09
KR1020040103610A KR20050095537A (ko) 2004-03-25 2004-12-09 고강도 소부경화형 냉간압연강판, 용용도금강판 및 그제조방법
PCT/KR2005/000828 WO2006001583A1 (en) 2004-03-25 2005-03-22 Cold rolled steel sheet and hot dipped steel sheet with superior strength and bake hardenability and method for manufacturing the steel sheets

Publications (1)

Publication Number Publication Date
US20070181232A1 true US20070181232A1 (en) 2007-08-09

Family

ID=35781970

Family Applications (2)

Application Number Title Priority Date Filing Date
US10/594,140 Abandoned US20070181232A1 (en) 2004-03-25 2005-03-22 Cold rolled steel sheet and hot dipped steel sheet with superior strength and bake hardenability and method for manufacturing the steel sheets
US12/499,829 Abandoned US20090272468A1 (en) 2004-03-25 2009-07-09 Method for Manufacturing Bake-Hardenable High-Strength Cold-Rolled Steel Sheet

Family Applications After (1)

Application Number Title Priority Date Filing Date
US12/499,829 Abandoned US20090272468A1 (en) 2004-03-25 2009-07-09 Method for Manufacturing Bake-Hardenable High-Strength Cold-Rolled Steel Sheet

Country Status (4)

Country Link
US (2) US20070181232A1 (ja)
EP (1) EP1735474B1 (ja)
JP (1) JP5127444B2 (ja)
WO (1) WO2006001583A1 (ja)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110100516A1 (en) * 2008-06-23 2011-05-05 Posco Bake Hardening Steel with Excellent Surface Properties and Resistance to Secondary Work Embrittlement, and Preparation Method Thereof
US20140050971A1 (en) * 2011-04-28 2014-02-20 Toyo Kohan Co., Ltd. Surface-treated steel sheet for battery cases, battery case and battery
US10704116B2 (en) 2015-06-05 2020-07-07 Posco High-strength thin steel sheet with excellent drawability and bake hardenability, and method for manufacturing same
US20210319098A1 (en) * 2018-12-31 2021-10-14 Intel Corporation Securing systems employing artificial intelligence
CN114262844A (zh) * 2021-12-03 2022-04-01 本钢板材股份有限公司 低成本220bh冷轧烘烤硬化钢及其制备方法

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100685030B1 (ko) * 2005-07-08 2007-02-20 주식회사 포스코 내2차가공취성, 피로특성 및 도금특성이 우수한 심가공용박강판 및 그 제조방법
KR100685037B1 (ko) * 2005-09-23 2007-02-20 주식회사 포스코 내시효성이 우수한 고장력 소부경화형 냉간압연강판,용융도금강판 및 냉연강판의 제조방법
EP2492363B1 (en) * 2005-09-23 2013-11-27 Posco Bake-hardenable cold rolled steel sheet with superior strength and method for manufacturing the cold rolled steel sheet
KR100775339B1 (ko) * 2006-11-21 2007-11-08 주식회사 포스코 면내이방성 및 가공성이 우수한 냉연강판 및 그 제조방법
KR20080061855A (ko) * 2006-12-28 2008-07-03 주식회사 포스코 딥드로잉성이 우수한 복합조직강판
WO2012073538A1 (ja) 2010-11-29 2012-06-07 新日本製鐵株式会社 高強度焼付硬化型冷延鋼板及びその製造方法
WO2016195456A1 (ko) * 2015-06-05 2016-12-08 주식회사 포스코 드로잉성 및 소부경화성이 우수한 고강도 박강판 및 그 제조방법
US11174530B2 (en) 2016-10-17 2021-11-16 Tata Steel Ijmuiden B.V. Steel for painted parts
WO2018073116A2 (en) * 2016-10-17 2018-04-26 Tata Steel Ijmuiden B.V. Method for producing a steel strip for painted parts
DE202017007170U1 (de) * 2016-10-17 2019-11-15 Tata Steel Ijmuiden B.V. Stahlsubstrat für lackierte Teile
CN109283053A (zh) * 2018-11-01 2019-01-29 唐山钢铁集团有限责任公司 超低碳烘烤硬化用钢的时效性评价方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4589931A (en) * 1980-11-26 1986-05-20 Kawasaki Steel Corporation Method of producing a thin steel sheet having baking hardenability and adapted for drawing
US5356494A (en) * 1991-04-26 1994-10-18 Kawasaki Steel Corporation High strength cold rolled steel sheet having excellent non-aging property at room temperature and suitable for drawing and method of producing the same
US5556485A (en) * 1994-11-07 1996-09-17 Bethlehem Steel Corporation Bake hardenable vanadium containing steel and method of making thereof
US5656102A (en) * 1996-02-27 1997-08-12 Bethlehem Steel Corporation Bake hardenable vanadium containing steel and method thereof

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* Cited by examiner, † Cited by third party
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JPH04120217A (ja) * 1990-09-11 1992-04-21 Nippon Steel Corp 焼付硬化性に優れた冷延鋼板の製造方法
JPH04131357A (ja) * 1990-09-21 1992-05-06 Nippon Steel Corp 焼付硬化性に優れた非時効性の深絞り用薄鋼板およびその製造方法
JPH0525549A (ja) * 1991-07-22 1993-02-02 Nippon Steel Corp 焼付硬化性に優れた冷延鋼板の製造方法
JPH05171353A (ja) * 1991-07-30 1993-07-09 Nippon Steel Corp 焼付け硬化性に優れた深絞り用薄鋼板およびその製造方法
JPH0681045A (ja) * 1992-01-23 1994-03-22 Nippon Steel Corp 加工性および焼付硬化性に優れた冷延鋼板の製造方法
JP3249572B2 (ja) * 1992-04-15 2002-01-21 川崎製鉄株式会社 常温遅時効性を有する焼付硬化型薄鋼板
JP3046145B2 (ja) * 1992-07-02 2000-05-29 新日本製鐵株式会社 深絞り用冷延鋼板の製造方法
JPH07188856A (ja) * 1993-12-28 1995-07-25 Nippon Steel Corp 常温遅時効性と焼付硬化性に優れた冷延鋼板
JPH10130733A (ja) * 1996-10-22 1998-05-19 Kawasaki Steel Corp 時効劣化の少ない焼き付け硬化性鋼板の製造方法
JP3769914B2 (ja) * 1998-01-06 2006-04-26 Ｊｆｅスチール株式会社 耐時効性と焼き付け硬化性に優れた缶用鋼板
JP3793351B2 (ja) * 1998-06-30 2006-07-05 新日本製鐵株式会社 焼付硬化性に優れた冷延鋼板
JP2000167615A (ja) * 1998-12-03 2000-06-20 Toshiba Corp 巻取温度制御方法及び制御装置
DE60220191T2 (de) * 2001-06-06 2008-01-17 Nippon Steel Corp. Hochfestes feuerverzinktes galvanisiertes stahlblech und feuerverzinktes geglühtes stahlblech mit ermüdungsfestigkeit,korrosionsbeständigkeit,duktilität und plattierungshaftung,nach starker verformung und verfahren zu dessen herstellung
CN1169991C (zh) * 2001-10-19 2004-10-06 住友金属工业株式会社 具有优异的可加工性和成型精度的薄钢板及其制造方法
KR100544645B1 (ko) * 2001-12-24 2006-01-24 주식회사 포스코 가공성이 우수한 복합조직 냉연강판 제조방법
JP3921100B2 (ja) * 2002-02-27 2007-05-30 新日本製鐵株式会社 常温遅時効性と焼付硬化性に優れた薄鋼板
EP1516937B1 (en) * 2002-06-25 2008-03-05 JFE Steel Corporation High-strength cold rolled steel sheet and process for producing the same
KR100946067B1 (ko) * 2002-12-27 2010-03-10 주식회사 포스코 내시효성이 우수한 용융도금용 소부경화형 냉연강판제조방법

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4589931A (en) * 1980-11-26 1986-05-20 Kawasaki Steel Corporation Method of producing a thin steel sheet having baking hardenability and adapted for drawing
US5356494A (en) * 1991-04-26 1994-10-18 Kawasaki Steel Corporation High strength cold rolled steel sheet having excellent non-aging property at room temperature and suitable for drawing and method of producing the same
US5556485A (en) * 1994-11-07 1996-09-17 Bethlehem Steel Corporation Bake hardenable vanadium containing steel and method of making thereof
US5656102A (en) * 1996-02-27 1997-08-12 Bethlehem Steel Corporation Bake hardenable vanadium containing steel and method thereof

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110100516A1 (en) * 2008-06-23 2011-05-05 Posco Bake Hardening Steel with Excellent Surface Properties and Resistance to Secondary Work Embrittlement, and Preparation Method Thereof
US9011615B2 (en) 2008-06-23 2015-04-21 Posco Bake hardening steel with excellent surface properties and resistance to secondary work embrittlement, and preparation method thereof
US20140050971A1 (en) * 2011-04-28 2014-02-20 Toyo Kohan Co., Ltd. Surface-treated steel sheet for battery cases, battery case and battery
US11223069B2 (en) * 2011-04-28 2022-01-11 Toyo Kohan Co., Ltd. Surface-treated steel sheet for battery cases, battery case and battery
US10704116B2 (en) 2015-06-05 2020-07-07 Posco High-strength thin steel sheet with excellent drawability and bake hardenability, and method for manufacturing same
US20210319098A1 (en) * 2018-12-31 2021-10-14 Intel Corporation Securing systems employing artificial intelligence
CN114262844A (zh) * 2021-12-03 2022-04-01 本钢板材股份有限公司 低成本220bh冷轧烘烤硬化钢及其制备方法

Also Published As

Publication number Publication date
JP5127444B2 (ja) 2013-01-23
US20090272468A1 (en) 2009-11-05
WO2006001583A1 (en) 2006-01-05
EP1735474A4 (en) 2010-09-29
EP1735474A1 (en) 2006-12-27
JP2007530783A (ja) 2007-11-01
EP1735474B1 (en) 2015-10-21

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Legal Events

Date Code Title Description
AS Assignment

Owner name: POSCO, KOREA, REPUBLIC OF

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:HAN, SEONG-HO;KIM, TAE-KYU;HAN, SANG-HO;AND OTHERS;REEL/FRAME:018358/0812

Effective date: 20060914

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION