FR2756298B1 - STEEL AND METHOD FOR THE MANUFACTURE OF A MECHANICAL PART HAVING A BATH STRUCTURE - Google Patents

STEEL AND METHOD FOR THE MANUFACTURE OF A MECHANICAL PART HAVING A BATH STRUCTURE

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
French (fr)
Other versions
FR2756298A1 (en
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/en
Priority to AT97402787T priority patent/ATE230443T1/en
Priority to EP97402787A priority patent/EP0845544B1/en
Priority to DE69718132T priority patent/DE69718132T2/en
Priority to ES97402787T priority patent/ES2190514T3/en
Priority to NO975392A priority patent/NO975392L/en
Publication of FR2756298A1 publication Critical patent/FR2756298A1/en
Application granted granted Critical
Publication of FR2756298B1 publication Critical patent/FR2756298B1/en
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

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)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Coating With Molten Metal (AREA)

Abstract

A steel section comprises by weight 0.06-0.11% carbon, 1-1.7% manganese, 0.15-0.40% silicon, 0.025-0.10% sulphur, up to 0.025% phosphorous, 0-0.25% nickel, 0.5-1.2% chromium, 0.08-0.13% molybdenum, 0-0.25% copper, 0.003-0.035% aluminium, 0-0.035% titanium, 0-0.10% vanadium, 0-0.06% niobium, 0.0008-0.0040% boron and 0.0060-0.011% nitrogen, with optionally up to following levels- 0.010% tellurium, 0.025% selenium, 0.13% bismuth, 0.090% lead and 0.0040% calcium, the remainder being iron and impurities. The sum Mn+Cr+Mo is at least 2.1%, the sum V+Nb+Ti is between 0.015 and 0.13%, Al+Ti is at least 0.020% and the ratio Mn/S is at least 12. The section has a bainitic structure and exhibits following mechanical properties at 20 degrees C- tensile strength at least 1000 MPa, ratio of elastic limit to tensile strength at least 0.78, resilience at least 45 J/cm<2> and contraction of area at least 55%. Also claimed are making such a section and machining it to form a finished article.
FR9614434A 1996-11-26 1996-11-26 STEEL AND METHOD FOR THE MANUFACTURE OF A MECHANICAL PART HAVING A BATH STRUCTURE Expired - Fee Related FR2756298B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FR9614434A FR2756298B1 (en) 1996-11-26 1996-11-26 STEEL AND METHOD FOR THE MANUFACTURE OF A MECHANICAL PART HAVING A BATH STRUCTURE
AT97402787T ATE230443T1 (en) 1996-11-26 1997-11-20 STEEL PRODUCT MADE OF BAINITIC STEEL AND METHOD FOR PRODUCING THE STEEL PRODUCT
EP97402787A EP0845544B1 (en) 1996-11-26 1997-11-20 Steel product made from bainitic steel and process for making the steel product
DE69718132T DE69718132T2 (en) 1996-11-26 1997-11-20 Steel product made from bainitic steel and method for producing the steel product
ES97402787T ES2190514T3 (en) 1996-11-26 1997-11-20 SIDERURGICO PRODUCT MADE OF BAINITIC STEEL AND PROCESS TO MANUFACTURE IT.
NO975392A NO975392L (en) 1996-11-26 1997-11-24 Metallurgical beam product with bainitic structure and process for making it

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9614434A FR2756298B1 (en) 1996-11-26 1996-11-26 STEEL AND METHOD FOR THE MANUFACTURE OF A MECHANICAL PART HAVING A BATH STRUCTURE

Publications (2)

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

Family

ID=9498012

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9614434A Expired - Fee Related FR2756298B1 (en) 1996-11-26 1996-11-26 STEEL AND METHOD FOR THE MANUFACTURE OF A MECHANICAL PART HAVING A BATH STRUCTURE

Country Status (6)

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

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2802607B1 (en) 1999-12-15 2002-02-01 Inst Francais Du Petrole FLEXIBLE PIPE COMPRISING LOW CARBON STEEL WEAPONS
FR2807068B1 (en) * 2000-03-29 2002-10-11 Usinor HOT ROLLED STEEL WITH VERY HIGH LIMIT OF ELASTICITY AND MECHANICAL STRENGTH FOR USE IN PARTICULAR FOR THE PRODUCTION OF PARTS OF MOTOR VEHICLES
JP2003096534A (en) * 2001-07-19 2003-04-03 Mitsubishi Heavy Ind Ltd High strength heat resistant steel, method of producing high strength heat resistant steel, and method of producing high strength heat resistant tube member
EP2309012B1 (en) * 2003-09-30 2012-09-12 Nippon Steel Corporation High yield ratio and high-strength cold rolled thin steel sheet superior in weldability and ductility, high-yield ratio high-strength hot-dip galvanized cold rolled thin steel sheet, high-yield ratio high-strength hot-dip galvannealed cold rolled thin steel sheet, and methods of production of same
ES2391312T3 (en) 2008-03-10 2012-11-23 Swiss Steel Ag Longitudinal hot rolled product and manufacturing process
FR2958660B1 (en) * 2010-04-07 2013-07-19 Ascometal Sa STEEL FOR MECHANICAL PIECES WITH HIGH CHARACTERISTICS AND METHOD FOR MANUFACTURING THE SAME.
EP2453026A1 (en) 2010-11-10 2012-05-16 Swiss Steel AG Thermoformed steel product and method for producing same
EP2812455A1 (en) * 2012-02-10 2014-12-17 Ascometal Process for making a steel part, and steel part so obtained
US20160138143A1 (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 (en) * 1982-12-14 1984-06-26 Nippon Steel Corp Preparation of low alloyed high tensile steel excellent in sulfide stress corrosion cracking resistance
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 (en) * 1991-09-10 1993-03-19 Nissan Motor Co Ltd Manufacture of high strength bolt
FR2685708B1 (en) * 1991-12-30 1994-07-22 Ascometal Sa LONG PRODUCT FOR MANUFACTURING BY COLD FORMING, ESPECIALLY BY COLD HITTING, OF PRODUCTS ELABORATED SUCH AS BOLTS AND METHOD FOR MANUFACTURING A COLD PRODUCT.
JPH06248341A (en) * 1993-02-23 1994-09-06 Sumitomo Metal Ind Ltd Production of steel with high strength and high toughness from non-heat-treated steel
FR2741632B1 (en) * 1995-11-27 1997-12-26 Ascometal Sa STEEL FOR MANUFACTURING A FORGED PART HAVING A BATH STRUCTURE AND METHOD FOR MANUFACTURING A PART

Also Published As

Publication number Publication date
EP0845544B1 (en) 2003-01-02
ES2190514T3 (en) 2003-08-01
ATE230443T1 (en) 2003-01-15
DE69718132D1 (en) 2003-02-06
DE69718132T2 (en) 2003-10-09
FR2756298A1 (en) 1998-05-29
NO975392D0 (en) 1997-11-24
NO975392L (en) 1998-05-27
EP0845544A1 (en) 1998-06-03

Similar Documents

Publication Publication Date Title
AU708786B2 (en) Low alloy steel for the manufacture of moulds for plastics
CA2280923A1 (en) High-tensile-strength steel and method of manufacturing the same
AU2005271134B2 (en) Martensitic stainless steel for moulds and injection mould frames
US4812182A (en) Air-cooling low-carbon bainitic steel
AU663023B2 (en) Process for manufacturing high-strength bainitic steel rails with excellent rolling-contact fatigue resistance
GB2297094A (en) Improvements in and relating to carbide-free bainitic steels and methods of producing such steels
FR2756298B1 (en) STEEL AND METHOD FOR THE MANUFACTURE OF A MECHANICAL PART HAVING A BATH STRUCTURE
FR2733516B1 (en) STEEL AND PROCESS FOR THE MANUFACTURE OF PARTS WITH HIGH ABRASION RESISTANCE
JPH08209298A (en) Low-alloy steel for producing mold for plastic or rubber material
KR960034448A (en) High-strength hot-rolled steel sheet with excellent toughness and its manufacturing method
KR970043238A (en) Steels and spare parts for manufacturing separate mechanical parts
FR2439309A1 (en) Cast stainless steel for generator water pump impeller - contains carbon, silicon, manganese, chromium, nickel, molybdenum, and vanadium, and pref. also niobium, zirconium, and hafnium
FR2757878B1 (en) STAINLESS STEEL STEEL WIRE AND MANUFACTURING METHOD
WO2002010469A1 (en) Stainless-steel pipe with excellent suitability for secondary processing for automotive structural member
RU2002111391A (en) LAMINATED CORROSION RESISTANT STEEL AND PRODUCT PERFORMED FROM IT
CN115198175B (en) 960MPa grade ultra-high strength steel plate with marine organism adhesion resistance and manufacturing method thereof
EP0693570A4 (en) Bainite rod wire or steel wire for wire drawing and process for producing the same
CA1084734A (en) Ductile ferritic steels
JPS56123324A (en) Production of high-strength steel of superior workability
JPS5531123A (en) Manufacture of hot rolled steel plate of composite structure having superior corrosion resistance, low yield ratio and high strength
KR100263426B1 (en) Large moulding sreel having constant hardness
FR2566000B1 (en) HIGH STRENGTH CONSTRUCTION STEEL HAVING GOOD MACHINABILITY AND HIGH ABILITY FOR SURFACE CURING BY NITRURATION, USE OF THIS STEEL BEFORE OR AFTER NITRURATION AS A CONSTRUCTION STEEL AND PROCESS FOR THE MANUFACTURE OF THIS STEEL
GB2022137A (en) Chrome-nickel steel
FR2764219B1 (en) METHOD FOR MANUFACTURING A STEEL SPRING, SPRING OBTAINED AND STEEL FOR MANUFACTURING SUCH A SPRING
Michel et al. Use of a Heat-Resistant Steel for Corrosion-Resistant Components

Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20100730