FR2756298B1 - Acier et procede pour la fabrication d'une piece de mecanique ayant une structure bainitique - Google Patents

Acier et procede pour la fabrication d'une piece de mecanique ayant une structure bainitique

Info

Publication number
FR2756298B1
FR2756298B1 FR9614434A FR9614434A FR2756298B1 FR 2756298 B1 FR2756298 B1 FR 2756298B1 FR 9614434 A FR9614434 A FR 9614434A FR 9614434 A FR9614434 A FR 9614434A FR 2756298 B1 FR2756298 B1 FR 2756298B1
Authority
FR
France
Prior art keywords
steel
section
sum
tensile strength
ratio
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
FR9614434A
Other languages
English (en)
French (fr)
Other versions
FR2756298A1 (fr
Inventor
Jacques Bellus
Gilles Pierson
Claude Pichard
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.)
Ascometal SA
Original Assignee
Ascometal SA
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 Ascometal SA filed Critical Ascometal SA
Priority to FR9614434A priority Critical patent/FR2756298B1/fr
Priority to DE69718132T priority patent/DE69718132T2/de
Priority to EP97402787A priority patent/EP0845544B1/de
Priority to ES97402787T priority patent/ES2190514T3/es
Priority to AT97402787T priority patent/ATE230443T1/de
Priority to NO975392A priority patent/NO975392L/no
Publication of FR2756298A1 publication Critical patent/FR2756298A1/fr
Application granted granted Critical
Publication of FR2756298B1 publication Critical patent/FR2756298B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • C21D8/0247—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
    • 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
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C21D1/19—Hardening; Quenching with or without subsequent tempering by interrupted quenching
    • C21D1/20—Isothermal quenching, e.g. bainitic hardening
    • 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
    • C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium 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
FR9614434A 1996-11-26 1996-11-26 Acier et procede pour la fabrication d'une piece de mecanique ayant une structure bainitique Expired - Fee Related FR2756298B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FR9614434A FR2756298B1 (fr) 1996-11-26 1996-11-26 Acier et procede pour la fabrication d'une piece de mecanique ayant une structure bainitique
DE69718132T DE69718132T2 (de) 1996-11-26 1997-11-20 Stahlprodukt aus bainitischem Stahl sowie Verfahren zur Herstellung des Stahlproduktes
EP97402787A EP0845544B1 (de) 1996-11-26 1997-11-20 Stahlprodukt aus bainitischem Stahl sowie Verfahren zur Herstellung des Stahlproduktes
ES97402787T ES2190514T3 (es) 1996-11-26 1997-11-20 Producto siderurgico hecho de acero bainitico y proceso para fabricarlo.
AT97402787T ATE230443T1 (de) 1996-11-26 1997-11-20 Stahlprodukt aus bainitischem stahl sowie verfahren zur herstellung des stahlproduktes
NO975392A NO975392L (no) 1996-11-26 1997-11-24 Metallurgisk strÕlprodukt med bainittisk struktur og fremgangsmÕte for fremstilling av dette

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9614434A FR2756298B1 (fr) 1996-11-26 1996-11-26 Acier et procede pour la fabrication d'une piece de mecanique ayant une structure bainitique

Publications (2)

Publication Number Publication Date
FR2756298A1 FR2756298A1 (fr) 1998-05-29
FR2756298B1 true FR2756298B1 (fr) 1998-12-24

Family

ID=9498012

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9614434A Expired - Fee Related FR2756298B1 (fr) 1996-11-26 1996-11-26 Acier et procede pour la fabrication d'une piece de mecanique ayant une structure bainitique

Country Status (6)

Country Link
EP (1) EP0845544B1 (de)
AT (1) ATE230443T1 (de)
DE (1) DE69718132T2 (de)
ES (1) ES2190514T3 (de)
FR (1) FR2756298B1 (de)
NO (1) NO975392L (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2802607B1 (fr) 1999-12-15 2002-02-01 Inst Francais Du Petrole Conduite flexible comportant des armures en acier bas carbone
FR2807068B1 (fr) * 2000-03-29 2002-10-11 Usinor Acier lamine a chaud a tres haute limite d'elasticite et resistance mecanique utilisable notamment pour la realisation de piece de vehicules automobiles
JP2003096534A (ja) * 2001-07-19 2003-04-03 Mitsubishi Heavy Ind Ltd 高強度耐熱鋼、高強度耐熱鋼の製造方法、及び高強度耐熱管部材の製造方法
EP2309012B1 (de) * 2003-09-30 2012-09-12 Nippon Steel Corporation Kalt gewalztes Stahlblech mit hohem Streckgrenzenverhältnis und hoher Festigkeit und feuerverzinktes, dünnes, kalt gewalztes Stahlblech mit hohem Streckgrenzenverhältnis und hoher Festigkeit mit hervorragender Schweissbarkeit und Duktilität sowie legiertes, feuerverzinktes, dünnes, kalt gewalztes Stahlblech mit hohem Streckgrenzenverhältnis und hoher Festigkeit und Herstellungsverfahren dafür
SI2103704T1 (sl) 2008-03-10 2012-11-30 Swiss Steel Ag Vroče valjani dolg proizvod in postopek za njegovo izdelavo
FR2958660B1 (fr) * 2010-04-07 2013-07-19 Ascometal Sa Acier pour pieces mecaniques a hautes caracteristiques et son procede de fabrication.
EP2453026A1 (de) 2010-11-10 2012-05-16 Swiss Steel AG Warmumgeformtes Stahlprodukt und Verfahren zu dessen Herstellung
WO2013117953A1 (en) * 2012-02-10 2013-08-15 Ascometal Process for making a steel part, and steel part so obtained
US20160138142A1 (en) 2014-11-18 2016-05-19 Air Liquide Large Industries U.S. Lp Materials of construction for use in high pressure hydrogen storage in a salt cavern

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5524932A (en) * 1978-08-08 1980-02-22 Nippon Steel Corp Manufacture of bainite tough hardening steel
JPS59110721A (ja) * 1982-12-14 1984-06-26 Nippon Steel Corp 硫化物応力腐食割れ抵抗性に優れた低合金高張力鋼の製造方法
DE3571254D1 (en) * 1985-02-16 1989-08-03 Ovako Oy Method and steel alloy for producing high-strength hot forgings
GB8603500D0 (en) * 1986-02-13 1986-03-19 Hunting Oilfield Services Ltd Steel alloys
JPH0565540A (ja) * 1991-09-10 1993-03-19 Nissan Motor Co Ltd 高強度ボルトの製造方法
FR2685708B1 (fr) * 1991-12-30 1994-07-22 Ascometal Sa Produit long pour la fabrication par formage a froid, notamment par frappe a froid, de produits elabores tels que des boulons et procede de fabrication d'un produit a froid.
JPH06248341A (ja) * 1993-02-23 1994-09-06 Sumitomo Metal Ind Ltd 非調質鋼からの高強度高靱性鋼の製造方法
FR2741632B1 (fr) * 1995-11-27 1997-12-26 Ascometal Sa Acier pour la fabrication d'une piece forgee ayant une structure bainitique et procede de fabrication d'une piece

Also Published As

Publication number Publication date
NO975392D0 (no) 1997-11-24
ES2190514T3 (es) 2003-08-01
EP0845544A1 (de) 1998-06-03
FR2756298A1 (fr) 1998-05-29
DE69718132T2 (de) 2003-10-09
ATE230443T1 (de) 2003-01-15
NO975392L (no) 1998-05-27
DE69718132D1 (de) 2003-02-06
EP0845544B1 (de) 2003-01-02

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20100730