DE602004027147D1 - Strip of hot rolled micro-alloyed steel for getting the finished pieces through the pressing and shearing cold - Google Patents

Strip of hot rolled micro-alloyed steel for getting the finished pieces through the pressing and shearing cold

Info

Publication number
DE602004027147D1
DE602004027147D1 DE602004027147T DE602004027147T DE602004027147D1 DE 602004027147 D1 DE602004027147 D1 DE 602004027147D1 DE 602004027147 T DE602004027147 T DE 602004027147T DE 602004027147 T DE602004027147 T DE 602004027147T DE 602004027147 D1 DE602004027147 D1 DE 602004027147D1
Authority
DE
Germany
Prior art keywords
strip
getting
pressing
hot rolled
alloyed steel
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 - Lifetime
Application number
DE602004027147T
Other languages
German (de)
Inventor
Giovanni Arvedi
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.)
Individual
Original Assignee
Individual
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=34932908&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE602004027147(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Publication of DE602004027147D1 publication Critical patent/DE602004027147D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • 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
    • C21D6/005—Heat treatment of ferrous alloys containing Mn
    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • 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
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • 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

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 Sheet Steel (AREA)
  • Coating With Molten Metal (AREA)

Abstract

A micro-alloyed low carbon steel strip is obtained by hot rolling at temperature of the pre-strip never lower than 900°C and shows such metallurgical and geometrical features, as well as relating to planarity and deformability, to render the same suitable to obtain structures of low weight and good mechanical resistance, thus being able for use in replacement of cold rolled strips for the production of finished stamped or cut pieces. Said steel strip, having thickness ‰¥ 0.7 mm, has a ratio yield load/breaking load ‰¥ 70%, a fine grain structure better than grade 10 of ASTM E 112 standard in a percentage higher than 90% of the whole structure and a ratio between breaking limit under strain and yield point à FP /R p0.2 ‰¥90%.
DE602004027147T 2004-11-24 2004-11-24 Strip of hot rolled micro-alloyed steel for getting the finished pieces through the pressing and shearing cold Expired - Lifetime DE602004027147D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04425879A EP1662012B1 (en) 2004-11-24 2004-11-24 Strip of hot rolled micro-alloyed steel for obtaining finished pieces by cold pressing and shearing

Publications (1)

Publication Number Publication Date
DE602004027147D1 true DE602004027147D1 (en) 2010-06-24

Family

ID=34932908

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602004027147T Expired - Lifetime DE602004027147D1 (en) 2004-11-24 2004-11-24 Strip of hot rolled micro-alloyed steel for getting the finished pieces through the pressing and shearing cold

Country Status (4)

Country Link
EP (1) EP1662012B1 (en)
AT (1) ATE467691T1 (en)
DE (1) DE602004027147D1 (en)
ES (1) ES2343460T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BRPI0621258B1 (en) * 2006-01-26 2014-10-07 Giovanni Arvedi STEEL STRIP WITH LOW CARBON CONNECTION IN HOT Laminated MICROLIGA
EP3943210A1 (en) 2020-07-23 2022-01-26 Primetals Technologies Austria GmbH Casting rolling composite system for the production of a hot rolled strip from a steel melt

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3562028A (en) * 1968-08-28 1971-02-09 Inland Steel Co Tough,high strength steel article
US6488790B1 (en) * 2001-01-22 2002-12-03 International Steel Group Inc. Method of making a high-strength low-alloy hot rolled steel
JP2003253381A (en) * 2002-03-01 2003-09-10 Mitsubishi Heavy Ind Ltd High-strength low-alloy steel
KR100630402B1 (en) * 2002-03-29 2006-10-02 신닛뽄세이테쯔 카부시키카이샤 High tensile strength steel with excellent high temperature strength and its manufacturing method
ITMI20021996A1 (en) * 2002-09-19 2004-03-20 Giovanni Arvedi PROCESS AND PRODUCTION LINE FOR THE MANUFACTURE OF ULTRA-THIN HOT TAPE BASED ON THE TECHNOLOGY OF THE THIN SHEET

Also Published As

Publication number Publication date
EP1662012B1 (en) 2010-05-12
ES2343460T3 (en) 2010-08-02
ATE467691T1 (en) 2010-05-15
EP1662012A1 (en) 2006-05-31

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Legal Events

Date Code Title Description
8363 Opposition against the patent