JP6845855B2 - 低降伏比型高強度鋼材及びその製造方法 - Google Patents

低降伏比型高強度鋼材及びその製造方法 Download PDF

Info

Publication number
JP6845855B2
JP6845855B2 JP2018532049A JP2018532049A JP6845855B2 JP 6845855 B2 JP6845855 B2 JP 6845855B2 JP 2018532049 A JP2018532049 A JP 2018532049A JP 2018532049 A JP2018532049 A JP 2018532049A JP 6845855 B2 JP6845855 B2 JP 6845855B2
Authority
JP
Japan
Prior art keywords
weight
yield ratio
less
type high
steel material
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.)
Active
Application number
JP2018532049A
Other languages
English (en)
Japanese (ja)
Other versions
JP2019504199A (ja
Inventor
ホ ユ，スン
ホ ユ，スン
ヨン ジョン，ムン
ヨン ジョン，ムン
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 JP2019504199A publication Critical patent/JP2019504199A/ja
Application granted granted Critical
Publication of JP6845855B2 publication Critical patent/JP6845855B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • C22C38/18—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
    • 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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or 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
    • C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties of ferrous metals or ferrous alloys 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
    • C22C38/001—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
    • C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
    • 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
    • C22C38/46—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
    • 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
    • C21D2211/002—Bainite
    • 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

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)
JP2018532049A 2015-12-24 2016-12-02 低降伏比型高強度鋼材及びその製造方法 Active JP6845855B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR1020150186522A KR102348539B1 (ko) 2015-12-24 2015-12-24 저항복비형 고강도 강재 및 그 제조방법
KR10-2015-0186522 2015-12-24
PCT/KR2016/014135 WO2017111345A1 (fr) 2015-12-24 2016-12-02 Acier à haute résistance de type à faible rapport d'élasticité et son procédé de fabrication

Publications (2)

Publication Number Publication Date
JP2019504199A JP2019504199A (ja) 2019-02-14
JP6845855B2 true JP6845855B2 (ja) 2021-03-24

Family

ID=59090793

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2018532049A Active JP6845855B2 (ja) 2015-12-24 2016-12-02 低降伏比型高強度鋼材及びその製造方法

Country Status (6)

Country Link
US (1) US20180371590A1 (fr)
EP (1) EP3395997B1 (fr)
JP (1) JP6845855B2 (fr)
KR (1) KR102348539B1 (fr)
CN (1) CN108474090B (fr)
WO (1) WO2017111345A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101879082B1 (ko) * 2016-12-21 2018-07-16 주식회사 포스코 저항복비형 초고강도 강재 및 그 제조방법
KR102109277B1 (ko) * 2018-10-26 2020-05-11 주식회사 포스코 용접열영향부 인성이 우수한 저항복비 강재 및 그 제조방법
KR102255818B1 (ko) * 2019-06-24 2021-05-25 주식회사 포스코 내부식성이 우수한 고강도 구조용 강재 및 그 제조방법
KR102307903B1 (ko) * 2019-11-04 2021-09-30 주식회사 포스코 저온 충격인성이 우수한 고강도 강재 및 그 제조방법
KR102409896B1 (ko) * 2020-10-23 2022-06-20 주식회사 포스코 성형성이 우수한 고강도 후물 강판 및 그 제조방법

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5597425A (en) 1979-01-19 1980-07-24 Nippon Kokan Kk <Nkk> Preparation of high-tensile steel with low yield ratio, low carbon and low alloy
JPH0551694A (ja) * 1991-08-20 1993-03-02 Nkk Corp 低降伏比高張力鋼およびその製造方法
KR100851189B1 (ko) * 2006-11-02 2008-08-08 주식회사 포스코 저온인성이 우수한 초고강도 라인파이프용 강판 및 그제조방법
JP5223375B2 (ja) * 2007-03-01 2013-06-26 新日鐵住金株式会社 低温靭性に優れるラインパイプ用高強度熱延鋼板およびその製造方法
JP4972451B2 (ja) * 2007-04-20 2012-07-11 株式会社神戸製鋼所 溶接熱影響部および母材の低温靭性に優れた低降伏比高張力鋼板並びにその製造方法
KR101018131B1 (ko) * 2007-11-22 2011-02-25 주식회사 포스코 저온인성이 우수한 고강도 저항복비 건설용 강재 및 그제조방법
KR101096992B1 (ko) * 2008-03-27 2011-12-20 가부시키가이샤 고베 세이코쇼 내진성이 우수한 건축 구조용 780㎫급 저항복비 원형 강관 및 그 제조 방법
JP5162382B2 (ja) * 2008-09-03 2013-03-13 株式会社神戸製鋼所 低降伏比高靭性厚鋼板
KR101070132B1 (ko) * 2008-12-18 2011-10-05 주식회사 포스코 저온 인성이 우수한 건설용 강재 및 그 제조방법
JP5776398B2 (ja) * 2011-02-24 2015-09-09 Ｊｆｅスチール株式会社 低温靭性に優れた低降伏比高強度熱延鋼板およびその製造方法
MX2013012116A (es) * 2011-04-21 2013-12-06 Nippon Steel & Sumitomo Metal Corp Placa de acero laminada en frio de alta resistencia que tiene excelente alargamiento por tension uniforme y capacidad de expansion de agujeros y metodo de fabricacion de la misma.
KR101546124B1 (ko) * 2013-03-28 2015-08-20 현대제철 주식회사 열연강판 및 그 제조 방법
CN105121684B (zh) * 2013-04-04 2017-03-15 杰富意钢铁株式会社 热轧钢板及其制造方法
US20160068937A1 (en) * 2013-04-15 2016-03-10 Jfe Steel Corporation High-strength hot-rolled steel sheet and method for producing the same (as amended)
KR101505299B1 (ko) * 2013-06-27 2015-03-24 현대제철 주식회사 강재 및 그 제조 방법
JP5783229B2 (ja) * 2013-11-28 2015-09-24 Ｊｆｅスチール株式会社 熱延鋼板およびその製造方法
KR101560943B1 (ko) * 2013-12-24 2015-10-15 주식회사 포스코 저온 인성이 우수한 강관용 열연강판 및 그 제조방법
CN105555983B (zh) * 2013-12-25 2018-01-09 新日铁住金株式会社 油井用电焊钢管

Also Published As

Publication number Publication date
CN108474090B (zh) 2021-02-12
KR20170076912A (ko) 2017-07-05
EP3395997A4 (fr) 2018-11-07
EP3395997B1 (fr) 2020-09-02
US20180371590A1 (en) 2018-12-27
KR102348539B1 (ko) 2022-01-07
WO2017111345A1 (fr) 2017-06-29
JP2019504199A (ja) 2019-02-14
EP3395997A1 (fr) 2018-10-31
CN108474090A (zh) 2018-08-31

Similar Documents

Publication Publication Date Title
CN101868560B (zh) 具有优良低温韧性的高强度且低屈强比的结构用钢
JP6829765B2 (ja) 低降伏比型超高強度鋼材及びその製造方法
JP6441939B2 (ja) 溶接熱影響部の靱性に優れた超高強度溶接構造用鋼材及びその製造方法
JP6648270B2 (ja) 脆性亀裂伝播抵抗性及び溶接部の脆性亀裂開始抵抗性に優れた高強度鋼材及びその製造方法
JP6648271B2 (ja) 脆性亀裂伝播抵抗性及び溶接部の脆性亀裂開始抵抗性に優れた高強度鋼材及びその製造方法
JP7411072B2 (ja) 低温衝撃靭性に優れた高強度極厚物鋼材及びその製造方法
JP6845855B2 (ja) 低降伏比型高強度鋼材及びその製造方法
JP7096337B2 (ja) 高強度鋼板及びその製造方法
JP2021509144A (ja) 疲労亀裂伝播抑制特性に優れた構造用高強度鋼材及びその製造方法
JP7332697B2 (ja) 脆性亀裂開始抵抗性に優れた構造用極厚物鋼材及びその製造方法
CN117230374A (zh) 一种低内应力断裂韧性优良的960MPa级桥梁用结构钢及其制备方法
KR101736626B1 (ko) 두께 방향 특성이 우수한 고강도 저항복비 강재 및 그 제조방법
KR20160078624A (ko) 저온인성 및 강도가 우수한 강관용 열연강판 및 그 제조방법
JP7297096B2 (ja) 形鋼およびその製造方法
JP5098210B2 (ja) 耐火用鋼材およびその製造方法
JP2022505840A (ja) 硫化物応力腐食割れ抵抗性に優れた高強度鋼材及びその製造方法
JP7395750B2 (ja) 構造用鋼材及びその製造方法
KR102155431B1 (ko) 형강 및 그 제조 방법
KR101568514B1 (ko) 저항복비형 초고강도 건설용 강재 및 그 제조방법
KR101647230B1 (ko) 저온 인성이 우수한 저항복비 고강도 강재 및 그 제조방법
JP7273298B2 (ja) 低温靱性に優れる圧力容器用鋼板
KR101715485B1 (ko) 고강도 후판 및 그 제조 방법
KR20240106711A (ko) 열연강재 및 그 제조 방법
KR20210037112A (ko) 고강도 구조용 강재

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20180726

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20190619

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20190806

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20191106

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20200519

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20200819

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20201208

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20201217

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20210202

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20210226

R150 Certificate of patent or registration of utility model

Ref document number: 6845855

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

S531 Written request for registration of change of domicile

Free format text: JAPANESE INTERMEDIATE CODE: R313531

S533 Written request for registration of change of name

Free format text: JAPANESE INTERMEDIATE CODE: R313533

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313113

R371 Transfer withdrawn

Free format text: JAPANESE INTERMEDIATE CODE: R371

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313113

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250