DE69529147T2 - Bainitischer stahl gleichbleibender qualität und verfahren zu seiner herstellung - Google Patents

Bainitischer stahl gleichbleibender qualität und verfahren zu seiner herstellung

Info

Publication number
DE69529147T2
DE69529147T2 DE69529147T DE69529147T DE69529147T2 DE 69529147 T2 DE69529147 T2 DE 69529147T2 DE 69529147 T DE69529147 T DE 69529147T DE 69529147 T DE69529147 T DE 69529147T DE 69529147 T2 DE69529147 T2 DE 69529147T2
Authority
DE
Germany
Prior art keywords
bainitical
steel
production
same quality
quality
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.)
Expired - Fee Related
Application number
DE69529147T
Other languages
English (en)
Other versions
DE69529147D1 (de
Inventor
Tohru Hayashi
Keniti Amano
Mitsuhiro Okatsu
Kenji Ooi
Fumimaru Kawabata
Tomoya Koseki
Noritsugu Itakura
Hiroki Ota
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.)
JFE Steel Corp
Original Assignee
Kawasaki Steel Corp
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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Publication of DE69529147D1 publication Critical patent/DE69529147D1/de
Application granted granted Critical
Publication of DE69529147T2 publication Critical patent/DE69529147T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • 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
    • C21D6/02—Hardening by precipitation
    • 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
    • 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
    • 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
    • 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
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • 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
    • 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
    • C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0263—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment following hot rolling

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)
  • Heat Treatment Of Steel (AREA)
DE69529147T 1994-09-20 1995-09-20 Bainitischer stahl gleichbleibender qualität und verfahren zu seiner herstellung Expired - Fee Related DE69529147T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP22492294 1994-09-20
PCT/JP1995/001871 WO1996009419A1 (fr) 1994-09-20 1995-09-20 Materiau en acier bainitique a faible dispersion de qualite et son procede de production

Publications (2)

Publication Number Publication Date
DE69529147D1 DE69529147D1 (de) 2003-01-23
DE69529147T2 true DE69529147T2 (de) 2003-04-17

Family

ID=16821279

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69529147T Expired - Fee Related DE69529147T2 (de) 1994-09-20 1995-09-20 Bainitischer stahl gleichbleibender qualität und verfahren zu seiner herstellung

Country Status (5)

Country Link
US (2) US5766381A (de)
EP (1) EP0730042B1 (de)
KR (1) KR100266378B1 (de)
DE (1) DE69529147T2 (de)
WO (1) WO1996009419A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112006003553B4 (de) * 2005-12-26 2013-10-17 Posco Dicke Stahlplatte für eine Schweißkonstruktion mit ausgezeichneter Festigkeit und Zähigkeit in einem Zentralbereich der Dicke und geringen Eigenschaftsänderungen durch ihre Dicke und Produktionsverfahren dafür

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3646512B2 (ja) 1998-03-23 2005-05-11 Ｊｆｅスチール株式会社 材質ばらつきが少なくかつ溶接部低温靱性に優れた高強度高靱性鋼材およびその製造方法
AU749066B2 (en) * 1998-06-17 2002-06-20 Kawasaki Steel Corporation Weatherable steel material
EP1104816A4 (de) * 1999-06-04 2005-01-26 Jfe Steel Corp Hochfestes stahlmaterial,hervorragend geeignet zum schweissen mit hochenergiedichter wärmequelle und daraus geschweisste struktur
US6451134B1 (en) 1999-06-24 2002-09-17 Kawasaki Steel Corporation 590MPa class heavy gauge H-shaped steel having excellent toughness and method of producing the same
JP3873540B2 (ja) 1999-09-07 2007-01-24 Ｊｆｅスチール株式会社 高生産性・高強度圧延ｈ形鋼の製造方法
US6376375B1 (en) * 2000-01-13 2002-04-23 Delphi Technologies, Inc. Process for preventing the formation of a copper precipitate in a copper-containing metallization on a die
US6632301B2 (en) 2000-12-01 2003-10-14 Benton Graphics, Inc. Method and apparatus for bainite blades
KR100526123B1 (ko) * 2001-04-10 2005-11-08 주식회사 포스코 기계적 성질의 편차가 적은 냉간압조용 강 선재의 제조방법

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5458615A (en) * 1977-10-18 1979-05-11 Kobe Steel Ltd Niobium-containing line pipe steel with superior weldability
JPS54132421A (en) * 1978-04-05 1979-10-15 Nippon Steel Corp Manufacture of high toughness bainite high tensile steel plate with superior weldability
JPS58733B2 (ja) * 1978-04-11 1983-01-07 川崎製鉄株式会社 加工用非調質高張力熱延鋼帯の製造方法
JPS55100924A (en) * 1979-01-25 1980-08-01 Nippon Steel Corp Production of high toughness bainite high tension steel plate having excellent weldability
JPS5763628A (en) * 1980-10-03 1982-04-17 Daido Steel Co Ltd Production of forge hardened parts
JPS5877528A (ja) * 1981-10-31 1983-05-10 Nippon Steel Corp 低温靭性の優れた高張力鋼の製造法
JPS58151425A (ja) * 1982-02-27 1983-09-08 Nippon Kokan Kk <Nkk> 低温靭性の優れた高耐食性クラツド鋼管の製造方法
JPS60245722A (ja) * 1984-05-21 1985-12-05 Kawasaki Steel Corp 高張力線材の製造方法
JPS62130215A (ja) * 1985-12-03 1987-06-12 Kawasaki Steel Corp Ｃｕ析出型高じん性鋼板の製造方法
JPH0615689B2 (ja) * 1987-05-19 1994-03-02 新日本製鐵株式会社 低降状比高張力鋼の製造方法
JPS6455334A (en) * 1987-08-25 1989-03-02 Nippon Kokan Kk Production of high-tensile steel having low surface hardness
JPH07116504B2 (ja) * 1990-12-25 1995-12-13 株式会社神戸製鋼所 板厚方向の硬度差が小さい板厚５０ｍｍ以上の５０キロ級低降伏比厚肉高張力鋼板の製造方法
JPH05331538A (ja) * 1992-06-01 1993-12-14 Kobe Steel Ltd 板厚中央部の靭性の優れた厚肉高靭性高張力鋼板の製 造方法
JP2776174B2 (ja) * 1992-09-11 1998-07-16 住友金属工業株式会社 高張力・高靱性微細ベイナイト鋼の製造法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112006003553B4 (de) * 2005-12-26 2013-10-17 Posco Dicke Stahlplatte für eine Schweißkonstruktion mit ausgezeichneter Festigkeit und Zähigkeit in einem Zentralbereich der Dicke und geringen Eigenschaftsänderungen durch ihre Dicke und Produktionsverfahren dafür
DE112006003553B9 (de) * 2005-12-26 2014-01-16 Posco Dicke Stahlplatte für eine Schweißkonstruktion mit ausgezeichneter Festigkeit und Zähigkeit in einem Zentralbereich der Dicke und geringen Eigenschaftsänderungen durch ihre Dicke und Produktionsverfahren dafür

Also Published As

Publication number Publication date
EP0730042B1 (de) 2002-12-11
DE69529147D1 (de) 2003-01-23
EP0730042A4 (de) 1997-03-19
KR100266378B1 (ko) 2000-09-15
EP0730042A1 (de) 1996-09-04
WO1996009419A1 (fr) 1996-03-28
US5900076A (en) 1999-05-04
US5766381A (en) 1998-06-16
KR960705953A (ko) 1996-11-08

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee
8370 Indication of lapse of patent is to be deleted
8339 Ceased/non-payment of the annual fee