DE59105852D1 - Process for the production of a high-strength sheet suitable for welding and its use. - Google Patents

Process for the production of a high-strength sheet suitable for welding and its use.

Info

Publication number
DE59105852D1
DE59105852D1 DE59105852T DE59105852T DE59105852D1 DE 59105852 D1 DE59105852 D1 DE 59105852D1 DE 59105852 T DE59105852 T DE 59105852T DE 59105852 T DE59105852 T DE 59105852T DE 59105852 D1 DE59105852 D1 DE 59105852D1
Authority
DE
Germany
Prior art keywords
max
cooled
air
welding
production
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
DE59105852T
Other languages
German (de)
Inventor
Klaus Dr Freier
Klaus Dr Seifert
Walter Dr Zimnik
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.)
Preussag Stahl AG
Original Assignee
Preussag Stahl AG
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 Preussag Stahl AG filed Critical Preussag Stahl AG
Application granted granted Critical
Publication of DE59105852D1 publication Critical patent/DE59105852D1/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
    • C21D8/021—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular fabrication or treatment of ingot or slab
    • 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
    • C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
    • 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
    • C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
    • 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
    • C21D2211/009—Pearlite
    • 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
    • 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)
  • Laminated Bodies (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

A process for manufacturing a thick-walled sheet and the use and application thereof, from steel having a yield strength of 420-500 but especially higher than 500 N/mm<2>, which has a ferritic-perlitic microstructure, high toughness and good weldability, are proposed. A continuous casting ingot having a composition in % by weight of 0.02 to 0.10 % C 0.05 to 0.50 % Si 1.00 to 2.00 % Mn max. 0.02 % P max. 0.01 % S 0.015 to 0.08 % Al max. 0.01 % N 0.30 to 1.60 % Ni 0.20 to 1.60 % Cu 0.04 to 0.10 % V 0.01 to 0.05 % Nb 0.01 to 0.04 % Ti the remainder being iron and unavoidable impurities, is heated to temperatures greater than 1200 DEG C, cooled in air to a surface temperature of less than 1000 DEG C and then thermomechanically rolled without interval between passes at a final rolling temperature of about 750 to 650 DEG C, and the sheet is then cooled in still air or in a stack to less than 200 DEG C and finally, after heating to about 420 to 610 DEG C, again cooled in air to room temperature. <IMAGE>
DE59105852T 1990-10-19 1991-10-11 Process for the production of a high-strength sheet suitable for welding and its use. Expired - Fee Related DE59105852D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4033700A DE4033700C1 (en) 1990-10-19 1990-10-19

Publications (1)

Publication Number Publication Date
DE59105852D1 true DE59105852D1 (en) 1995-08-03

Family

ID=6416886

Family Applications (2)

Application Number Title Priority Date Filing Date
DE4033700A Expired - Lifetime DE4033700C1 (en) 1990-10-19 1990-10-19
DE59105852T Expired - Fee Related DE59105852D1 (en) 1990-10-19 1991-10-11 Process for the production of a high-strength sheet suitable for welding and its use.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE4033700A Expired - Lifetime DE4033700C1 (en) 1990-10-19 1990-10-19

Country Status (4)

Country Link
EP (1) EP0481575B1 (en)
AT (1) ATE124464T1 (en)
DE (2) DE4033700C1 (en)
ES (1) ES2074651T3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003069008A1 (en) * 2002-02-12 2003-08-21 The Timken Company Low carbon microalloyed steel
CN105132805B (en) * 2015-09-15 2017-03-15 攀钢集团攀枝花钢铁研究院有限公司 A kind of steel for welded structures containing vanadium and preparation method thereof
DE102018132816A1 (en) * 2018-12-19 2020-06-25 Voestalpine Stahl Gmbh Process for the production of thermo-mechanically produced profiled hot-rolled products
DE102018132908A1 (en) * 2018-12-19 2020-06-25 Voestalpine Stahl Gmbh Process for the production of thermo-mechanically produced hot strip products
CN114438415A (en) * 2022-01-26 2022-05-06 宝武集团鄂城钢铁有限公司 36 kg-grade extra-thick low-temperature high-toughness ship plate steel and production method thereof

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0030309B1 (en) * 1979-12-06 1985-02-13 Preussag Stahl Aktiengesellschaft Hot rolled strip or plate of denitrided steel and process for its production
CS330783A2 (en) * 1982-07-09 1984-06-18 Mannesmann Ag Zpusob vyroby plechu s jemnozrnnou strukturou z nizce legovane oceli pro vyrobu trub velkeho prumeru
CA1207639A (en) * 1983-03-17 1986-07-15 Rodney J. Jesseman Low alloy steel plate and process for production therefor
DE3818879C1 (en) * 1988-06-01 1989-11-16 Mannesmann Ag, 4000 Duesseldorf, De
JPH0794687B2 (en) * 1989-03-29 1995-10-11 新日本製鐵株式会社 Method for producing HT80 steel excellent in high weldability, stress corrosion cracking resistance and low temperature toughness

Also Published As

Publication number Publication date
DE4033700C1 (en) 1992-02-06
ES2074651T3 (en) 1995-09-16
EP0481575A3 (en) 1992-08-26
EP0481575A2 (en) 1992-04-22
EP0481575B1 (en) 1995-06-28
ATE124464T1 (en) 1995-07-15

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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