BR112018000633A2 - chapa de aço laminada a quente de alta resistência - Google Patents

chapa de aço laminada a quente de alta resistência

Info

Publication number
BR112018000633A2
BR112018000633A2 BR112018000633-5A BR112018000633A BR112018000633A2 BR 112018000633 A2 BR112018000633 A2 BR 112018000633A2 BR 112018000633 A BR112018000633 A BR 112018000633A BR 112018000633 A2 BR112018000633 A2 BR 112018000633A2
Authority
BR
Brazil
Prior art keywords
steel sheet
rolled steel
strength hot
polygonal ferrite
bainite
Prior art date
Application number
BR112018000633-5A
Other languages
English (en)
Japanese (ja)
Inventor
Sugiura Natsuko
Tanaka Yasuaki
Yokoyama Takafumi
Original Assignee
Nippon Steel & Sumitomo Metal Corporation
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 Nippon Steel & Sumitomo Metal Corporation filed Critical Nippon Steel & Sumitomo Metal Corporation
Publication of BR112018000633A2 publication Critical patent/BR112018000633A2/pt

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
    • 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
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
    • 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
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel 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
    • C22C38/002—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
    • 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
    • C22C38/18—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
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • 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
    • C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
    • 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
    • C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
    • 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
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
    • C23C2/06—Zinc or cadmium or alloys based thereon
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
    • C23C2/36—Elongated material
    • C23C2/40—Plates; Strips
    • 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)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

esta chapa de aço laminada a quente de alta resistência tem uma composição química prescrita, sendo que a dita composição contendo 80% ou mais de ferrita poligonal, não mais que 5% de mar-tensita e austenita no total, e não mais que 5% de perlita e cementita no total (porcentagens sendo expressas em termos de área), sendo que o restante é um ou mais selecionados a partir de ferrita bainítica e bainita. shv, que é o desvio padrão em microdureza de 50 grãos de ferrita poligonal arbitrários presentes em uma faixa de ± 100 µm a partir de um plano central na direção da espessura da chapa, não é superior a 30. pelo menos 5×107 carbonetos contendo ti/mm2 estão presentes nos grãos de ferrita poligonal. pelo menos 50% dos carbonetos contendo ti, têm uma razão de aspecto menor que 3, sendo que a razão de aspecto é a razão do comprimento de lado longo para o comprimento de lado curto. a resistência à tração é pelo menos 540 mpa.
BR112018000633-5A 2015-07-31 2015-07-31 chapa de aço laminada a quente de alta resistência BR112018000633A2 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2015/071845 WO2017022025A1 (ja) 2015-07-31 2015-07-31 高強度熱延鋼板

Publications (1)

Publication Number Publication Date
BR112018000633A2 true BR112018000633A2 (pt) 2018-09-18

Family

ID=57942560

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112018000633-5A BR112018000633A2 (pt) 2015-07-31 2015-07-31 chapa de aço laminada a quente de alta resistência

Country Status (8)

Country Link
US (1) US20180209007A1 (pt)
EP (1) EP3330394B1 (pt)
JP (1) JP6485549B2 (pt)
KR (1) KR102079968B1 (pt)
CN (1) CN107849651B (pt)
BR (1) BR112018000633A2 (pt)
MX (1) MX2018001140A (pt)
WO (1) WO2017022025A1 (pt)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3516085B1 (en) * 2016-09-22 2020-07-08 Tata Steel IJmuiden B.V. A method of producing a hot-rolled high-strength steel with excellent stretch-flange formability and edge fatigue performance
CN110656292A (zh) * 2018-06-28 2020-01-07 上海梅山钢铁股份有限公司 一种抗拉强度440MPa级低屈强比高扩孔性热轧钢板
CN109047692B (zh) * 2018-08-22 2021-01-26 江阴兴澄特种钢铁有限公司 一种能够在-60℃条件下使用的超薄规格高强钢板及其制造方法
KR102643337B1 (ko) * 2019-07-10 2024-03-08 닛폰세이테츠 가부시키가이샤 고강도 강판
CN112522568A (zh) * 2019-09-19 2021-03-19 宝山钢铁股份有限公司 一种耐火耐候钢板/带及其制造方法
WO2021144953A1 (ja) * 2020-01-17 2021-07-22 日本製鉄株式会社 鋼板および鋼管
EP4123046B1 (en) * 2020-03-19 2024-05-01 Nippon Steel Corporation Steel sheet
WO2021210644A1 (ja) * 2020-04-17 2021-10-21 日本製鉄株式会社 高強度熱延鋼板
EP3925771A1 (en) * 2020-06-16 2021-12-22 SSAB Technology AB High strength steel product and method of manufacturing the same
CN113005352B (zh) * 2021-02-08 2022-04-12 大连理工大学 一种外加纳米TiC强韧化马氏体钢的方法

Family Cites Families (16)

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JP3426465B2 (ja) 1997-04-15 2003-07-14 新日本製鐵株式会社 靱性と加工性に優れた４００〜８００Ｎ／ｍｍ２級高強度熱延鋼板及びその製造方法
JP3882577B2 (ja) 2000-10-31 2007-02-21 Ｊｆｅスチール株式会社 伸びおよび伸びフランジ性に優れた高張力熱延鋼板ならびにその製造方法および加工方法
JP4411005B2 (ja) 2003-04-04 2010-02-10 株式会社神戸製鋼所 成形性に優れた高強度熱延鋼板
JP4649868B2 (ja) * 2003-04-21 2011-03-16 Ｊｆｅスチール株式会社 高強度熱延鋼板およびその製造方法
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JP5765080B2 (ja) 2010-06-25 2015-08-19 Ｊｆｅスチール株式会社 伸びフランジ性に優れた高強度熱延鋼板およびその製造方法
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BR112014024879B1 (pt) * 2012-04-06 2019-01-22 Nippon Steel & Sumitomo Metal Corporation chapa de aço laminada a quente galvanizada por imersão a quente e processo para produzir a mesma
BR112015006077B1 (pt) * 2012-09-26 2020-01-28 Nippon Steel & Sumitomo Metal Corp folha de aço bifásico e método de fabricação da mesma
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JP6177551B2 (ja) * 2013-03-15 2017-08-09 株式会社神戸製鋼所 絞り加工性と加工後の表面硬さに優れる熱延鋼板
JP5892147B2 (ja) * 2013-03-29 2016-03-23 Ｊｆｅスチール株式会社 高強度熱延鋼板およびその製造方法

Also Published As

Publication number Publication date
EP3330394A4 (en) 2018-12-19
CN107849651B (zh) 2019-09-03
EP3330394A1 (en) 2018-06-06
CN107849651A (zh) 2018-03-27
JP6485549B2 (ja) 2019-03-20
JPWO2017022025A1 (ja) 2018-05-31
MX2018001140A (es) 2018-04-20
EP3330394B1 (en) 2020-08-26
KR102079968B1 (ko) 2020-02-21
KR20180019736A (ko) 2018-02-26
WO2017022025A1 (ja) 2017-02-09
US20180209007A1 (en) 2018-07-26

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Legal Events

Date Code Title Description
B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]
B25D Requested change of name of applicant approved

Owner name: NIPPON STEEL CORPORATION (JP)

B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B11B Dismissal acc. art. 36, par 1 of ipl - no reply within 90 days to fullfil the necessary requirements