KR20130036763A - 가공성 및 내충격성이 우수한 고강도 냉연 강판 및 그 제조 방법 - Google Patents

가공성 및 내충격성이 우수한 고강도 냉연 강판 및 그 제조 방법 Download PDF

Info

Publication number
KR20130036763A
KR20130036763A KR1020137003735A KR20137003735A KR20130036763A KR 20130036763 A KR20130036763 A KR 20130036763A KR 1020137003735 A KR1020137003735 A KR 1020137003735A KR 20137003735 A KR20137003735 A KR 20137003735A KR 20130036763 A KR20130036763 A KR 20130036763A
Authority
KR
South Korea
Prior art keywords
steel sheet
rolled steel
impact resistance
high strength
strength cold
Prior art date
Application number
KR1020137003735A
Other languages
English (en)
Korean (ko)
Inventor
다츠야 나카가이토
사이지 마츠오카
신지로 가네코
요시야스 가와사키
Original Assignee
제이에프이 스틸 가부시키가이샤
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 제이에프이 스틸 가부시키가이샤 filed Critical 제이에프이 스틸 가부시키가이샤
Publication of KR20130036763A publication Critical patent/KR20130036763A/ko

Links

Classifications

    • 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
    • C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C21D1/25—Hardening, combined with annealing between 300 degrees Celsius and 600 degrees Celsius, i.e. heat refining ("Vergüten")
    • 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
    • C22C38/02—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
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
    • 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
    • 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
    • C22C38/16—Ferrous alloys, e.g. steel alloys containing 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
    • C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of 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
    • C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of 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
    • C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/005—Ferrite
    • 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
    • C21D2211/008—Martensite
    • 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
    • C21D9/02—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for springs

Landscapes

  • 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)
KR1020137003735A 2010-08-12 2010-08-12 가공성 및 내충격성이 우수한 고강도 냉연 강판 및 그 제조 방법 KR20130036763A (ko)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2010/063949 WO2012020511A1 (ja) 2010-08-12 2010-08-12 加工性および耐衝撃性に優れた高強度冷延鋼板およびその製造方法

Publications (1)

Publication Number Publication Date
KR20130036763A true KR20130036763A (ko) 2013-04-12

Family

ID=45567489

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020137003735A KR20130036763A (ko) 2010-08-12 2010-08-12 가공성 및 내충격성이 우수한 고강도 냉연 강판 및 그 제조 방법

Country Status (7)

Country Link
US (1) US20130133792A1 (ja)
EP (1) EP2604715B1 (ja)
KR (1) KR20130036763A (ja)
CN (1) CN103069040A (ja)
CA (1) CA2805834C (ja)
MX (1) MX2013001456A (ja)
WO (1) WO2012020511A1 (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160114660A (ko) * 2014-01-29 2016-10-05 제이에프이 스틸 가부시키가이샤 고강도 냉연 강판 및 그 제조 방법
KR20170130578A (ko) * 2015-03-31 2017-11-28 가부시키가이샤 고베 세이코쇼 가공성 및 충돌 특성이 우수한 인장 강도 980MPa 이상의 고강도 냉연 강판 및 그의 제조 방법
WO2017222160A1 (ko) * 2016-06-21 2017-12-28 현대제철 주식회사 굽힘 특성이 우수한 고강도 냉연강판 및 그 제조 방법
KR20200101980A (ko) * 2018-01-31 2020-08-28 제이에프이 스틸 가부시키가이샤 고강도 냉연강판, 고강도 도금강판 및 그것들의 제조방법

Families Citing this family (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5440672B2 (ja) * 2011-09-16 2014-03-12 Ｊｆｅスチール株式会社 加工性に優れた高強度鋼板およびその製造方法
KR101613806B1 (ko) * 2011-10-24 2016-04-29 제이에프이 스틸 가부시키가이샤 가공성이 우수한 고강도 강판의 제조 방법
MX356409B (es) 2012-02-22 2018-05-24 Nippon Steel & Sumitomo Metal Corp Lamina de acero laminada en frio y proceso para fabricar la misma.
TWI507540B (zh) 2012-03-30 2015-11-11 Kobe Steel Ltd Anti-coking excellent gear
CN102876972B (zh) * 2012-11-01 2015-10-28 湖南华菱湘潭钢铁有限公司 一种超高强钢板的生产方法
CN102899563B (zh) * 2012-11-01 2015-11-11 湖南华菱湘潭钢铁有限公司 一种超高强钢板的生产方法
CN103805840B (zh) * 2012-11-15 2016-12-21 宝山钢铁股份有限公司 一种高成形性热镀锌超高强度钢板及其制造方法
CN103805838B (zh) * 2012-11-15 2017-02-08 宝山钢铁股份有限公司 一种高成形性超高强度冷轧钢板及其制造方法
JP6264176B2 (ja) * 2013-04-23 2018-01-24 新日鐵住金株式会社 冷延鋼板およびその製造方法
JP5821911B2 (ja) * 2013-08-09 2015-11-24 Ｊｆｅスチール株式会社 高降伏比高強度冷延鋼板およびその製造方法
JP6322973B2 (ja) * 2013-11-28 2018-05-16 新日鐵住金株式会社 衝撃吸収特性に優れた高強度鋼
KR101831544B1 (ko) 2014-01-06 2018-02-22 신닛테츠스미킨 카부시키카이샤 열간 성형 부재 및 그 제조 방법
PL3093358T3 (pl) 2014-01-06 2020-02-28 Nippon Steel Corporation Stal i sposób jej wytwarzania
JP5896085B1 (ja) * 2014-03-31 2016-03-30 Ｊｆｅスチール株式会社 材質均一性に優れた高強度冷延鋼板およびその製造方法
EP3128027B1 (en) * 2014-03-31 2018-09-05 JFE Steel Corporation High-strength cold rolled steel sheet having high yield ratio, and production method therefor
KR101594670B1 (ko) * 2014-05-13 2016-02-17 주식회사 포스코 연성이 우수한 고강도 냉연강판, 용융아연도금강판 및 이들의 제조방법
JP6379716B2 (ja) * 2014-06-23 2018-08-29 新日鐵住金株式会社 冷延鋼板及びその製造方法
JP6303866B2 (ja) * 2014-06-26 2018-04-04 新日鐵住金株式会社 高強度鋼材およびその製造方法
JP5943156B1 (ja) * 2014-08-07 2016-06-29 Ｊｆｅスチール株式会社 高強度鋼板およびその製造方法、ならびに高強度亜鉛めっき鋼板の製造方法
EP3178957B1 (en) * 2014-08-07 2018-12-19 JFE Steel Corporation High-strength steel sheet and production method for same, and production method for high-strength galvanized steel sheet
US10570475B2 (en) 2014-08-07 2020-02-25 Jfe Steel Corporation High-strength steel sheet and production method for same, and production method for high-strength galvanized steel sheet
CN107002198B (zh) * 2014-12-12 2019-05-28 杰富意钢铁株式会社 高强度冷轧钢板及其制造方法
JP6435864B2 (ja) * 2015-01-07 2018-12-12 新日鐵住金株式会社 冷延鋼板およびその製造方法
CN107208206B (zh) * 2015-01-15 2019-08-02 杰富意钢铁株式会社 高强度热镀锌钢板及其制造方法
JP6417977B2 (ja) * 2015-01-29 2018-11-07 新日鐵住金株式会社 鋼板ブランク
WO2016135794A1 (ja) * 2015-02-27 2016-09-01 Ｊｆｅスチール株式会社 高強度冷延鋼板およびその製造方法
MX2017011695A (es) 2015-03-13 2017-11-10 Jfe Steel Corp Lamina de acero laminada en frio de alta resistencia y metodo para fabricacion de la misma.
JP6453140B2 (ja) * 2015-03-31 2019-01-16 株式会社神戸製鋼所 切断端面の耐遅れ破壊性に優れた高強度鋼板およびその製造方法
DE102015106153A1 (de) * 2015-04-22 2016-10-27 Západoceská Univerzita V Plzni Verfahren zur Wärmebehandlung von Stahlteilen
CN105039846B (zh) * 2015-08-17 2016-09-14 攀钢集团攀枝花钢铁研究院有限公司 钒微合金化tam钢及其制造方法
WO2017109541A1 (en) 2015-12-21 2017-06-29 Arcelormittal Method for producing a high strength coated steel sheet having improved ductility and formability, and obtained coated steel sheet
WO2017109542A1 (en) * 2015-12-21 2017-06-29 Arcelormittal Method for producing a high strength steel sheet having improved ductility and formability, and obtained steel sheet
WO2017109540A1 (en) * 2015-12-21 2017-06-29 Arcelormittal Method for producing a high strength steel sheet having improved ductility and formability, and obtained steel sheet
WO2017109538A1 (en) * 2015-12-21 2017-06-29 Arcelormittal Method for producing a steel sheet having improved strength, ductility and formability
JP6694511B2 (ja) * 2015-12-23 2020-05-13 ポスコＰｏｓｃｏ 延性、穴加工性、及び表面処理特性に優れた高強度冷延鋼板、溶融亜鉛めっき鋼板、並びにそれらの製造方法
EP3444372B1 (en) 2016-04-14 2020-12-02 JFE Steel Corporation High strength steel sheet and manufacturing method therefor
KR102158631B1 (ko) 2016-08-08 2020-09-22 닛폰세이테츠 가부시키가이샤 강판
EP3476963B1 (en) 2016-08-31 2020-04-08 JFE Steel Corporation High-strength cold rolled steel sheet and method for producing the same
CN111406124B (zh) * 2017-11-29 2021-11-09 杰富意钢铁株式会社 高强度冷轧钢板及其制造方法
US11643700B2 (en) 2018-03-30 2023-05-09 Jfe Steel Corporation High-strength steel sheet and production method thereof
CN112703265A (zh) * 2018-10-04 2021-04-23 日本制铁株式会社 冷轧钢板
CN113366126B (zh) * 2019-01-29 2023-09-22 杰富意钢铁株式会社 高强度钢板及其制造方法
CN112760554A (zh) * 2019-10-21 2021-05-07 宝山钢铁股份有限公司 一种延展性优异的高强度钢及其制造方法
CN117660846A (zh) * 2022-08-23 2024-03-08 宝山钢铁股份有限公司 一种120公斤级冷轧低合金退火双相钢及其制造方法

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0670247B2 (ja) 1988-10-05 1994-09-07 新日本製鐵株式会社 成形性良好な高強度鋼板の製造方法
JP3587126B2 (ja) * 1999-04-21 2004-11-10 Ｊｆｅスチール株式会社 延性に優れる高張力溶融亜鉛めっき鋼板およびその製造方法
JP4188608B2 (ja) * 2001-02-28 2008-11-26 株式会社神戸製鋼所 加工性に優れた高強度鋼板およびその製造方法
EP1444374B9 (en) * 2001-10-04 2015-02-18 Nippon Steel Corporation High-strength thin steel sheet drawable and excellent in shape fixation property and method of producing the same
JP4119758B2 (ja) * 2003-01-16 2008-07-16 株式会社神戸製鋼所 加工性および形状凍結性に優れた高強度鋼板、並びにその製法
JP2004256872A (ja) 2003-02-26 2004-09-16 Jfe Steel Kk 伸びおよび伸びフランジ性に優れる高張力冷延鋼板およびその製造方法
ATE526424T1 (de) * 2003-08-29 2011-10-15 Kobe Steel Ltd Hohes stahlblech der dehnfestigkeit ausgezeichnet für die verarbeitung und proze für die produktion desselben
EP2671961A1 (en) * 2005-03-31 2013-12-11 Kabushiki Kaisha Kobe Seiko Sho High strength cold-rolled steel sheet and automobile components of steel having excellent properties in coating film adhesion, workability, and hydrogen embrittlement resistivity
WO2009054539A1 (ja) * 2007-10-25 2009-04-30 Jfe Steel Corporation 加工性に優れた高強度溶融亜鉛めっき鋼板およびその製造方法
JP5369663B2 (ja) * 2008-01-31 2013-12-18 Ｊｆｅスチール株式会社 加工性に優れた高強度溶融亜鉛めっき鋼板およびその製造方法
JP4894863B2 (ja) * 2008-02-08 2012-03-14 Ｊｆｅスチール株式会社 加工性に優れた高強度溶融亜鉛めっき鋼板およびその製造方法
JP5463685B2 (ja) * 2009-02-25 2014-04-09 Ｊｆｅスチール株式会社 加工性および耐衝撃性に優れた高強度冷延鋼板およびその製造方法
US20140342184A1 (en) * 2011-12-26 2014-11-20 Jfe Steel Corporation High-strength steel sheet and method for manufacturing same
EP2881481B1 (en) * 2012-07-31 2019-04-03 JFE Steel Corporation High-strength hot-dip galvanized steel sheet having excellent moldability and shape fixability, and method for manufacturing same

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160114660A (ko) * 2014-01-29 2016-10-05 제이에프이 스틸 가부시키가이샤 고강도 냉연 강판 및 그 제조 방법
US10174396B2 (en) 2014-01-29 2019-01-08 Jfe Steel Corporation High-strength cold-rolled steel sheet and method for manufacturing the same (as amended)
KR20170130578A (ko) * 2015-03-31 2017-11-28 가부시키가이샤 고베 세이코쇼 가공성 및 충돌 특성이 우수한 인장 강도 980MPa 이상의 고강도 냉연 강판 및 그의 제조 방법
WO2017222160A1 (ko) * 2016-06-21 2017-12-28 현대제철 주식회사 굽힘 특성이 우수한 고강도 냉연강판 및 그 제조 방법
KR20200101980A (ko) * 2018-01-31 2020-08-28 제이에프이 스틸 가부시키가이샤 고강도 냉연강판, 고강도 도금강판 및 그것들의 제조방법

Also Published As

Publication number Publication date
WO2012020511A1 (ja) 2012-02-16
CN103069040A (zh) 2013-04-24
CA2805834C (en) 2016-06-07
EP2604715A4 (en) 2017-12-13
EP2604715B1 (en) 2019-12-11
EP2604715A1 (en) 2013-06-19
CA2805834A1 (en) 2012-02-16
US20130133792A1 (en) 2013-05-30
MX2013001456A (es) 2013-04-29

Similar Documents

Publication Publication Date Title
JP5463685B2 (ja) 加工性および耐衝撃性に優れた高強度冷延鋼板およびその製造方法
KR20130036763A (ko) 가공성 및 내충격성이 우수한 고강도 냉연 강판 및 그 제조 방법
JP6654698B2 (ja) 成形性及び穴拡げ性に優れた超高強度鋼板及びその製造方法
KR101218464B1 (ko) 가공성이 우수한 고강도 용융 아연 도금 강판 및 그 제조 방법
JP5493986B2 (ja) 加工性に優れた高強度鋼板および高強度溶融亜鉛めっき鋼板並びにそれらの製造方法
US9580785B2 (en) High-strength galvannealed steel sheet having excellent formability and fatigue resistance and method for manufacturing the same
KR101530835B1 (ko) 고강도 냉연 강판 및 그 제조 방법
KR101540507B1 (ko) 연성 및 내지연 파괴 특성이 우수한 초고강도 냉연 강판 및 그 제조 방법
JP6779320B2 (ja) 強度及び成形性に優れたクラッド鋼板及びその製造方法
JP5858174B2 (ja) 低降伏比高強度冷延鋼板およびその製造方法
JP5402191B2 (ja) 伸びフランジ性に優れた超高強度冷延鋼板およびその製造方法
KR101569977B1 (ko) 가공성이 우수한 고항복비를 갖는 고강도 냉연 강판 및 그 제조 방법
JP5924332B2 (ja) 加工性に優れた高強度溶融亜鉛めっき鋼板およびその製造方法
KR101626233B1 (ko) 고항복비 고강도 냉연 강판과 그 제조 방법
KR20120099505A (ko) 가공성 및 내충격 특성이 우수한 고강도 용융 아연 도금 강판 및 그 제조 방법
US20140234655A1 (en) Hot-dip galvanized steel sheet and method for producing same
JP5509909B2 (ja) 高強度熱延鋼板の製造方法
JP5304522B2 (ja) 加工性に優れた高強度鋼板及びその製造方法
KR101674283B1 (ko) 신장과 신장 플랜지성이 우수한 저항복비 고강도 냉연 강판 및 그 제조 방법
JP5515623B2 (ja) 高強度冷延鋼板およびその製造方法
JP5304521B2 (ja) 加工性に優れた高強度鋼板及びその製造方法

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application