CA2513096A1 - Acier lamine a chaud a tres haute resistance et procede de fabrication de bandes - Google Patents

Acier lamine a chaud a tres haute resistance et procede de fabrication de bandes Download PDF

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Publication number
CA2513096A1
CA2513096A1 CA002513096A CA2513096A CA2513096A1 CA 2513096 A1 CA2513096 A1 CA 2513096A1 CA 002513096 A CA002513096 A CA 002513096A CA 2513096 A CA2513096 A CA 2513096A CA 2513096 A1 CA2513096 A1 CA 2513096A1
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CA
Canada
Prior art keywords
steel
hot rolled
equal
iron
rolled steel
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Granted
Application number
CA002513096A
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English (en)
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CA2513096C (fr
Inventor
Mireille Seux
Christophe Issartel
Fabienne Roumegoux
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USINOR SA
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Individual
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Publication of CA2513096A1 publication Critical patent/CA2513096A1/fr
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Publication of CA2513096C publication Critical patent/CA2513096C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 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
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
    • 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
    • C21D2211/008—Martensite
    • 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
    • C21D8/0247—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 heat treatment
    • C21D8/0263—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 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
    • 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
    • C21D8/0278—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 involving a particular surface treatment 

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  • 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 Sheet Steel (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

L'invention concerne un acier laminé à chaud à très haute résistance, dont la composition chimique comprend, en poids 0,05% <= C <= 0,1 0,7% <= Mn <= 1, 1%
0,5% <= Cr <= 1, 0% 0,05% <= Si<= 0,3% 0, 05 <=Ti < 0,1 AI <= 0,07 S <= 0,03%
P <= 0,05% le reste étant du fer et des impuretés résultant de l'élaboration, ledit acier ayant une structure bainito-martensitique pouvant contenir jusqu'à
5% de ferrite, ainsi qu'un procédé de fabrication de bandes de cet acier.

Claims (10)

1. ~Acier laminé à chaud à très haute résistance, caractérisé en ce que sa composition chimique comprend, en poids :
0,05% <= C <= 0,1 0,7% <= Mn <= 1,1%
0,5% <= Cr <= 1,0%
0,05% <= Si <= 0,3%
0,05 <= Ti <= 0,1%
Al <= 0,07 S <= 0,03%
P <= 0,05%

le reste étant du fer et des impuretés résultant de l'élaboration, ledit acier ayant une structure bainito-martensitique pouvant contenir jusqu'à 5% de ferrite.
2. ~Acier selon la revendication 1, caractérisé en ce que sa composition comprend en outre:
0,08% <= C <= 0,09%
0,8% <= Mn <= 1,0%
0,6% <= Cr <= 0,9%
0,2% <= Si <= 0,3%
0,05% <= Ti <= 0,09%
Al <= 0,07 S <= 0,03%
P <= 0,05%

le reste étant du fer et des impuretés résultant de l'élaboration, ledit acier ayant une structure bainito-martensitique pouvant contenir~
jusqu'à 5% de ferrite.
3. ~Acier selon l'une ou l'autre des revendications 1 ou 2, caractérisé en outre en ce que sa structure est constituée de 70 à 90% de bainite, de 10 à
30% de martensite et de 0 à 5% de ferrite.

9~~~~
4. Acier selon l'une quelconque des revendications 1 à 3, caractérisé en ce qu'il présente une résistance à la traction Rm supérieure ou égale à
950MPa.
5. Acier selon l'une quelconque des revendications 1 à 4, caractérisé en ce qu'il présente un allongement à la rupture A supérieur ou égal à 10%.
6. Acier selon l'une quelconque des revendications 1 à 5, caractérisé en ce qu'il présente une limite d'élasticité E supérieure ou égale à 680 MPa.
7. Acier selon l'une quelconque des revendications 1 à 6, caractérisé en ce qu'il présente un rapport E/Rm inférieur à 0,8.
8. Procédé de fabrication d'une bande d'acier laminé à chaud à très haute résistance selon l'une quelconque des revendications 1 à 7, caractérisé
en ce que l'on lamine à chaud une brame dont la composition comprend:
0,05% <= C <= 0,1%
0,7% <= Mn <= 1,1%
0,5% <= Cr <= 1,0%
0,05% <= Si <= 0,3%
0,05 <= Ti <= 0,1%
Al <= 0,07 S <= 0,03%
P <= 0,05%
le reste étant du fer et des impuretés résultant de l'élaboration, la température de laminage étant inférieure à 950°C, puis on fait refroidir la bande ainsi obtenue jusqu'à une température inférieure ou égale à
400°C, en maintenant une vitesse de refroidissement supérieure à
50°C/s entre 800 et 700°C, puis on bobine ladite bande à une température de bobinage inférieure ou égale à 250°C.
9. Procédé de fabrication selon la revendication 8, caractérisé en outre en ce que l'on lamine à chaud une brame dont la composition comprend:
0,08% <= C <= 0,09%
0,8% <= Mn <= 1,0%
0,6% <= Cr <= 0,9%
0,2% <= Si <= 0,3%
0,05% <= Ti <= 0,09%
10 Al <= 0,07 S <= 0,03%
P <= 0,05%

le reste étant du fer et des impuretés résultant de l'élaboration.

10. Procédé de fabrication selon l'une ou l'autre des revendications 3 ou 9, caractérisé en ce que la bande d'acier laminé à chaud est revêtue de zinc ou d'un alliage de zinc, par immersion dans un bain de zinc ou d'alliage de zinc fondu, à l'issue dudit bobinage et après avoir été débobinée, puis recuite.
CA2513096A 2003-01-15 2004-01-14 Acier lamine a chaud a tres haute resistance et procede de fabrication de bandes Expired - Lifetime CA2513096C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0300371A FR2849864B1 (fr) 2003-01-15 2003-01-15 Acier lamine a chaud a tres haute resistance et procede de fabrication de bandes
FR03/00371 2003-01-15
PCT/FR2004/000058 WO2004070064A2 (fr) 2003-01-15 2004-01-14 Acier lamine a chaud a tres haute resistance et procede de fabrication de bandes

Publications (2)

Publication Number Publication Date
CA2513096A1 true CA2513096A1 (fr) 2004-08-19
CA2513096C CA2513096C (fr) 2011-03-29

Family

ID=32524914

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2513096A Expired - Lifetime CA2513096C (fr) 2003-01-15 2004-01-14 Acier lamine a chaud a tres haute resistance et procede de fabrication de bandes

Country Status (16)

Country Link
US (1) US7699947B2 (fr)
EP (1) EP1587963B1 (fr)
JP (1) JP4505055B2 (fr)
KR (1) KR101065781B1 (fr)
CN (1) CN100366759C (fr)
AT (1) ATE528414T1 (fr)
BR (1) BRPI0406731B1 (fr)
CA (1) CA2513096C (fr)
ES (1) ES2374188T3 (fr)
FR (1) FR2849864B1 (fr)
MX (1) MXPA05007580A (fr)
PL (1) PL209154B1 (fr)
RU (1) RU2333284C2 (fr)
UA (1) UA79531C2 (fr)
WO (1) WO2004070064A2 (fr)
ZA (1) ZA200505161B (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2355814C1 (ru) * 2008-03-27 2009-05-20 Юлия Алексеевна Щепочкина Горячекатаная сталь
RU2355813C1 (ru) * 2008-03-27 2009-05-20 Юлия Алексеевна Щепочкина Горячекатаная сталь
KR101531453B1 (ko) * 2010-10-18 2015-06-24 신닛테츠스미킨 카부시키카이샤 고속 변형 하에서의 균일 연성 및 국부 연성이 우수한 열연 강판, 냉연 강판 및 도금 강판
WO2012153009A1 (fr) * 2011-05-12 2012-11-15 Arcelormittal Investigación Y Desarrollo Sl Procede de fabrication d'acier martensitique a tres haute resistance et tole ainsi obtenue
WO2012153008A1 (fr) 2011-05-12 2012-11-15 Arcelormittal Investigación Y Desarrollo Sl Procede de fabrication d'acier martensitique a tres haute resistance et tole ou piece ainsi obtenue
CN102560272B (zh) * 2011-11-25 2014-01-22 宝山钢铁股份有限公司 一种超高强度耐磨钢板及其制造方法
WO2014019844A1 (fr) * 2012-08-03 2014-02-06 Tata Steel Ijmuiden Bv Procédé permettant de produire une bande d'acier laminée à chaud, et bande d'acier ainsi produite
CN103695762B (zh) * 2013-12-13 2016-06-08 安徽工业大学 一种抗拉强度560～590MPa热轧轮辋用钢及其制造方法
HUE054213T2 (hu) * 2014-01-24 2021-08-30 Rautaruukki Oyj Meleghengerelt ultranagy szilárdságú acélszalag termék
DE102017130237A1 (de) * 2017-12-15 2019-06-19 Salzgitter Flachstahl Gmbh Hochfestes, warmgewalztes Stahlflachprodukt mit hohem Kantenrisswiderstand und gleichzeitig hohem Bake-Hardening Potential, ein Verfahren zur Herstellung eines solchen Stahlflachprodukts
KR102020435B1 (ko) 2017-12-22 2019-09-10 주식회사 포스코 굽힘성 및 저온인성이 우수한 고강도 열연강판 및 이의 제조방법
CN115354237B (zh) * 2022-08-29 2023-11-14 东北大学 抗拉强度1000MPa级热轧超高强钢板及其制备方法
CN115386783B (zh) * 2022-08-29 2023-10-03 东北大学 一种屈服强度1000MPa级超高强钢板及其制备方法
CN120700411A (zh) * 2024-03-25 2025-09-26 宝山钢铁股份有限公司 一种汽车大梁用钢及其制造方法

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Also Published As

Publication number Publication date
US7699947B2 (en) 2010-04-20
PL209154B1 (pl) 2011-07-29
KR101065781B1 (ko) 2011-09-19
UA79531C2 (en) 2007-06-25
WO2004070064A2 (fr) 2004-08-19
RU2005125717A (ru) 2006-02-10
BRPI0406731B1 (pt) 2012-11-27
US20060207692A1 (en) 2006-09-21
EP1587963A2 (fr) 2005-10-26
ATE528414T1 (de) 2011-10-15
CN100366759C (zh) 2008-02-06
PL378236A1 (pl) 2006-03-20
MXPA05007580A (es) 2005-09-21
EP1587963B1 (fr) 2011-10-12
JP4505055B2 (ja) 2010-07-14
FR2849864B1 (fr) 2005-02-18
ZA200505161B (en) 2006-12-27
CA2513096C (fr) 2011-03-29
CN1735700A (zh) 2006-02-15
WO2004070064A3 (fr) 2004-09-16
JP2006518009A (ja) 2006-08-03
KR20050090458A (ko) 2005-09-13
FR2849864A1 (fr) 2004-07-16
ES2374188T3 (es) 2012-02-14
RU2333284C2 (ru) 2008-09-10
BRPI0406731A (pt) 2005-12-20

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