BR112018067794A2 - aço de liga leve contendo cu tendo excelente equilíbrio entre resistência e tenacidade à baixa temperatura e método para produzir o mesmo - Google Patents

aço de liga leve contendo cu tendo excelente equilíbrio entre resistência e tenacidade à baixa temperatura e método para produzir o mesmo

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Publication number
BR112018067794A2
BR112018067794A2 BR112018067794A BR112018067794A BR112018067794A2 BR 112018067794 A2 BR112018067794 A2 BR 112018067794A2 BR 112018067794 A BR112018067794 A BR 112018067794A BR 112018067794 A BR112018067794 A BR 112018067794A BR 112018067794 A2 BR112018067794 A2 BR 112018067794A2
Authority
BR
Brazil
Prior art keywords
alloy steel
strength
toughness
low temperature
excellent balance
Prior art date
Application number
BR112018067794A
Other languages
English (en)
Other versions
BR112018067794B1 (pt
Inventor
Sasaki Gen
Uno Kokichi
Hashi Kunihiko
Kayano Rinzo
Honma Yuta
Original Assignee
Japan Steel Works 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 Japan Steel Works Ltd filed Critical Japan Steel Works Ltd
Publication of BR112018067794A2 publication Critical patent/BR112018067794A2/pt
Publication of BR112018067794B1 publication Critical patent/BR112018067794B1/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
    • 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
    • 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
    • C21D1/19—Hardening; Quenching with or without subsequent tempering by interrupted quenching
    • 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
    • C21D1/78—Combined heat-treatments not provided for above
    • 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
    • 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
    • C21D6/002—Heat treatment of ferrous alloys containing Cr
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/005—Heat treatment of ferrous alloys containing Mn
    • 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
    • C21D6/008—Heat treatment of ferrous alloys containing Si
    • 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
    • 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
    • C22C38/001—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
    • C22C38/02—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
    • C22C38/18—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
    • C22C38/48—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
    • C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese

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 Steel (AREA)

Abstract

a presente invenção refere-se a um aço de liga leve contendo cu tendo ex-celente equilíbrio entre resistência e tenacidade à baixa temperatura. o aço de liga leve contendo cu tem uma composição química que compreende, em % em massa, c: 0,01 a 0,08%, si: 0,10 a 0,40%, mn: 0,80 a 1,80%, ni: 0,80 a 2,50%, cr: 0,50 a 1,00 %, cu: 0,80 a 1,50%, mo: 0,20 a 0,60%, al: 0,010 a 0,050%, nb: 0,030 a 0,080% e n: 0,005 a 0,020%, e ainda compreendendo ca: 0,010% ou menos conforme ne-cessário, e consistindo em fe e impurezas inevitáveis como o equilíbrio; tem um limi-te de elasticidade de 0,2% de 525 mpa ou mais. o aço de liga leve contendo cu tem uma temperatura de transição de aparência de fratura dúctil frágil (fatt) conforme medido pelo teste de impacto charpy de entalhe em v de -70 ºc ou menos.
BR112018067794-9A 2016-02-25 2017-02-08 Processo para produzir aço baixa liga contendo cobre BR112018067794B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2016034390A JP6242415B2 (ja) 2016-02-25 2016-02-25 強度−低温靱性バランスに優れたＣｕ含有低合金鋼およびその製造方法
JP2016-034390 2016-02-25
PCT/JP2017/004617 WO2017145766A1 (ja) 2016-02-25 2017-02-08 強度－低温靱性バランスに優れたＣｕ含有低合金鋼およびその製造方法

Publications (2)

Publication Number Publication Date
BR112018067794A2 true BR112018067794A2 (pt) 2019-02-12
BR112018067794B1 BR112018067794B1 (pt) 2022-07-19

Family

ID=59685059

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112018067794-9A BR112018067794B1 (pt) 2016-02-25 2017-02-08 Processo para produzir aço baixa liga contendo cobre

Country Status (6)

Country Link
US (1) US20190055620A1 (pt)
EP (1) EP3421630B1 (pt)
JP (1) JP6242415B2 (pt)
KR (2) KR20180118117A (pt)
BR (1) BR112018067794B1 (pt)
WO (1) WO2017145766A1 (pt)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7025950B2 (ja) * 2018-02-16 2022-02-25 日本製鋼所Ｍ＆Ｅ株式会社 高強度高靱性を有するＣｕ含有低合金鋼およびその製造方法
JP7402055B2 (ja) 2020-01-07 2023-12-20 日本製鋼所Ｍ＆Ｅ株式会社 溶接熱影響部の靱性が優れたＣｕ含有低合金鋼およびその製造方法
CN114134404B (zh) * 2021-05-20 2022-07-29 江阴兴澄特种钢铁有限公司 一种经济型破冰船用fh36钢板及其制备方法
CN114892072B (zh) * 2022-04-08 2023-06-09 上海大学 一种高强高韧抗氢脆钢板及其成分优选和制备方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61149430A (ja) 1984-12-25 1986-07-08 Kawasaki Steel Corp 低温じん性および溶接性の優れた低Ｃ−Ｃｕ析出型高張力鋼の製造方法
JPH062899B2 (ja) * 1986-01-30 1994-01-12 日本鋳鍛鋼株式会社 低温靭性のすぐれた鋳鋼の製造法
JP2662409B2 (ja) * 1988-02-26 1997-10-15 新日本製鐵株式会社 低温靭性の優れた極厚調質高張力鋼板の製造方法
JPH05171263A (ja) 1991-12-24 1993-07-09 Kawasaki Steel Corp Ｂ添加鋼の２相域焼入れ方法
JPH06220577A (ja) * 1993-01-26 1994-08-09 Kawasaki Steel Corp 耐ｈｉｃ特性に優れた高張力鋼及びその製造方法
JPH07233438A (ja) * 1993-12-29 1995-09-05 Nkk Corp 高張力鋼及びその製造方法
JPH07207334A (ja) * 1994-01-12 1995-08-08 Nippon Steel Corp 溶接性および塑性変形能に優れた高張力鋼の製造法
JP3262972B2 (ja) * 1995-07-31 2002-03-04 新日本製鐵株式会社 低降伏比を有する低温靭性に優れた溶接性高強度鋼
JP3541746B2 (ja) 1999-09-13 2004-07-14 住友金属工業株式会社 Ｃｔｏｄ特性に優れた高強度厚鋼板及びその製造方法
JP3968011B2 (ja) * 2002-05-27 2007-08-29 新日本製鐵株式会社 低温靱性および溶接熱影響部靱性に優れた高強度鋼とその製造方法および高強度鋼管の製造方法
JP5076423B2 (ja) 2006-09-27 2012-11-21 Ｊｆｅスチール株式会社 Ｎｉ含有鋼板の製造方法

Also Published As

Publication number Publication date
BR112018067794B1 (pt) 2022-07-19
JP6242415B2 (ja) 2017-12-06
EP3421630B1 (en) 2021-03-24
KR20240027879A (ko) 2024-03-04
US20190055620A1 (en) 2019-02-21
EP3421630A1 (en) 2019-01-02
EP3421630A4 (en) 2019-01-02
KR20180118117A (ko) 2018-10-30
WO2017145766A1 (ja) 2017-08-31
JP2017150041A (ja) 2017-08-31

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Legal Events

Date Code Title Description
B25A Requested transfer of rights approved

Owner name: NIKKO MEC CO., LTD. (JP)

B25D Requested change of name of applicant approved

Owner name: JAPAN STEEL WORKS MANDE, INC. (JP)

B06W Patent application suspended after preliminary examination (for patents with searches from other patent authorities) chapter 6.23 patent gazette]
B350 Update of information on the portal [chapter 15.35 patent gazette]
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 08/02/2017, OBSERVADAS AS CONDICOES LEGAIS