EP3431201A3 - A hot rolled thin cast strip product and method for making the same - Google Patents

A hot rolled thin cast strip product and method for making the same Download PDF

Info

Publication number
EP3431201A3
EP3431201A3 EP18190655.3A EP18190655A EP3431201A3 EP 3431201 A3 EP3431201 A3 EP 3431201A3 EP 18190655 A EP18190655 A EP 18190655A EP 3431201 A3 EP3431201 A3 EP 3431201A3
Authority
EP
European Patent Office
Prior art keywords
strip
less
hot rolled
cast strip
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.)
Withdrawn
Application number
EP18190655.3A
Other languages
German (de)
French (fr)
Other versions
EP3431201A2 (en
Inventor
Daniel Geoffrey Edelman
Christopher Ronald Killmore
Mary E. Alwin-Becker
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.)
Nucor Corp
Original Assignee
Nucor Corp
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 Nucor Corp filed Critical Nucor Corp
Publication of EP3431201A2 publication Critical patent/EP3431201A2/en
Publication of EP3431201A3 publication Critical patent/EP3431201A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0622—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by two casting wheels
    • 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
    • C21D8/0215—Rapid solidification; Thin strip casting
    • 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
    • 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
    • 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
    • C21D2211/005—Ferrite
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12785—Group IIB metal-base component
    • Y10T428/12792—Zn-base component
    • Y10T428/12799—Next to Fe-base component [e.g., galvanized]

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)
  • Continuous Casting (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Metal Rolling (AREA)
  • Coating With Molten Metal (AREA)

Abstract

A hot rolled steel strip made by the steps including assembling a twin roll caster, forming a casting pool of molten steel having a free oxygen content between 20 and 75 ppm and having a composition such that the cast strip comprises by weight, less than 0.25% carbon, between 0.9 and 2.0% manganese, between 0.05 and 0.50% silicon, greater than 0.01% and less than or equal to 0.15% phosphorus, and less than 0.01% aluminum, counter rotating the casting rolls forming the steel strip, hot rolling the strip such that mechanical properties at 10% and 35% reduction are within 10% for yield strength, tensile strength and total elongation, and coiling the strip at a temperature between 300 and 700 DEG C. to provide a majority of the microstructure comprising bainite and acicular ferrite. Alternatively, the steel may have between 0.20 and 0.60% copper and manganese as low as 0.08%.
EP18190655.3A 2009-02-20 2010-02-20 A hot rolled thin cast strip product and method for making the same Withdrawn EP3431201A3 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US15423309P 2009-02-20 2009-02-20
PCT/AU2010/000189 WO2010094076A1 (en) 2009-02-20 2010-02-20 A hot rolled thin cast strip product and method for making the same
EP10743332.8A EP2398602B1 (en) 2009-02-20 2010-02-20 Method for making a hot rolled thin cast strip product

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP10743332.8A Division-Into EP2398602B1 (en) 2009-02-20 2010-02-20 Method for making a hot rolled thin cast strip product
EP10743332.8A Division EP2398602B1 (en) 2009-02-20 2010-02-20 Method for making a hot rolled thin cast strip product

Publications (2)

Publication Number Publication Date
EP3431201A2 EP3431201A2 (en) 2019-01-23
EP3431201A3 true EP3431201A3 (en) 2019-03-13

Family

ID=42631240

Family Applications (2)

Application Number Title Priority Date Filing Date
EP10743332.8A Active EP2398602B1 (en) 2009-02-20 2010-02-20 Method for making a hot rolled thin cast strip product
EP18190655.3A Withdrawn EP3431201A3 (en) 2009-02-20 2010-02-20 A hot rolled thin cast strip product and method for making the same

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP10743332.8A Active EP2398602B1 (en) 2009-02-20 2010-02-20 Method for making a hot rolled thin cast strip product

Country Status (10)

Country Link
US (1) US20100215981A1 (en)
EP (2) EP2398602B1 (en)
JP (1) JP5509222B2 (en)
KR (1) KR101715086B1 (en)
CN (2) CN105215299A (en)
AU (2) AU2010215077B2 (en)
MY (1) MY173389A (en)
PL (1) PL2398602T3 (en)
RU (1) RU2532794C2 (en)
WO (1) WO2010094076A1 (en)

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Publication number Priority date Publication date Assignee Title
DE102010010536B4 (en) * 2010-03-05 2017-01-05 Theodor Stuth Process for the production of nickel strip
US20140261905A1 (en) * 2013-03-15 2014-09-18 Castrip, Llc Method of thin strip casting
CN104959561B (en) * 2015-07-09 2017-12-01 东北大学 A kind of method for improving double roller continuous casting low-carbon micro steel-alloy acicular ferrite content
CN112522629B (en) * 2019-09-19 2022-06-24 宝山钢铁股份有限公司 Nb microalloying high-strength high-hole-expansion steel and production method thereof
CN112522588B (en) * 2019-09-19 2022-06-28 宝山钢铁股份有限公司 Method for producing high-strength thin-specification patterned steel plate/strip through thin strip continuous casting
WO2023062643A1 (en) * 2021-10-13 2023-04-20 Stephen Fernandes Slip planes in metal and mechanical strength in materials
CN115478203A (en) * 2022-09-27 2022-12-16 张家港中美超薄带科技有限公司 Method for producing hot-rolled thin strip steel based on thin strip casting and rolling and ultrahigh-strength part

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US5901777A (en) * 1994-04-04 1999-05-11 Nippon Steel Corporation Twin-roll continuous casting method
JP3262993B2 (en) * 1996-09-18 2002-03-04 株式会社神戸製鋼所 Hot rolled steel sheet excellent in perforation corrosion resistance and method for producing the same
US20040177945A1 (en) * 2001-09-14 2004-09-16 Blejde Walter N. Casting steel strip
JP2008045196A (en) * 2006-08-21 2008-02-28 Kobe Steel Ltd High-tensile strength thick steel plate and its production method

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US5901777A (en) * 1994-04-04 1999-05-11 Nippon Steel Corporation Twin-roll continuous casting method
JP3262993B2 (en) * 1996-09-18 2002-03-04 株式会社神戸製鋼所 Hot rolled steel sheet excellent in perforation corrosion resistance and method for producing the same
US20040177945A1 (en) * 2001-09-14 2004-09-16 Blejde Walter N. Casting steel strip
JP2008045196A (en) * 2006-08-21 2008-02-28 Kobe Steel Ltd High-tensile strength thick steel plate and its production method

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Also Published As

Publication number Publication date
RU2011138463A (en) 2013-03-27
EP2398602B1 (en) 2018-10-31
AU2010215077A1 (en) 2011-07-28
JP5509222B2 (en) 2014-06-04
KR20110117142A (en) 2011-10-26
KR101715086B1 (en) 2017-03-10
EP2398602A4 (en) 2014-09-24
PL2398602T3 (en) 2019-04-30
CN102325608B (en) 2015-11-25
RU2532794C2 (en) 2014-11-10
EP3431201A2 (en) 2019-01-23
AU2010215077B2 (en) 2017-05-25
AU2017202997A1 (en) 2017-06-01
EP2398602A1 (en) 2011-12-28
MY173389A (en) 2020-01-22
AU2017202997B2 (en) 2019-01-17
JP2012518539A (en) 2012-08-16
CN102325608A (en) 2012-01-18
CN105215299A (en) 2016-01-06
WO2010094076A1 (en) 2010-08-26
US20100215981A1 (en) 2010-08-26

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