ATE467691T1 - STRIPS OF HOT ROLLED MICRO-ALLOYED STEEL FOR MAINTAINING FINISHED PIECES BY COLD ACTUATING AND SHEARING - Google Patents

STRIPS OF HOT ROLLED MICRO-ALLOYED STEEL FOR MAINTAINING FINISHED PIECES BY COLD ACTUATING AND SHEARING

Info

Publication number
ATE467691T1
ATE467691T1 AT04425879T AT04425879T ATE467691T1 AT E467691 T1 ATE467691 T1 AT E467691T1 AT 04425879 T AT04425879 T AT 04425879T AT 04425879 T AT04425879 T AT 04425879T AT E467691 T1 ATE467691 T1 AT E467691T1
Authority
AT
Austria
Prior art keywords
strips
shearing
hot rolled
alloyed steel
micro
Prior art date
Application number
AT04425879T
Other languages
German (de)
Inventor
Giovanni Arvedi
Original Assignee
Giovanni Arvedi
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=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE467691(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Giovanni Arvedi filed Critical Giovanni Arvedi
Application granted granted Critical
Publication of ATE467691T1 publication Critical patent/ATE467691T1/en

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

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%.
AT04425879T 2004-11-24 2004-11-24 STRIPS OF HOT ROLLED MICRO-ALLOYED STEEL FOR MAINTAINING FINISHED PIECES BY COLD ACTUATING AND SHEARING ATE467691T1 (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
ATE467691T1 true ATE467691T1 (en) 2010-05-15

Family

ID=34932908

Family Applications (1)

Application Number Title Priority Date Filing Date
AT04425879T ATE467691T1 (en) 2004-11-24 2004-11-24 STRIPS OF HOT ROLLED MICRO-ALLOYED STEEL FOR MAINTAINING FINISHED PIECES BY COLD ACTUATING AND SHEARING

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
AU2006336816B2 (en) * 2006-01-26 2011-09-15 Giovanni Arvedi Strip of hot rolled micro-alloyed steel for obtaining finished pieces by cold pressing and shearing
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 steel excellent in high temperature strength and method for production thereof
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
ES2343460T3 (en) 2010-08-02
DE602004027147D1 (en) 2010-06-24
EP1662012A1 (en) 2006-05-31
EP1662012B1 (en) 2010-05-12

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