EP0903419A4 - Thin steel plate of high rectangular tube drawability and method of manufacturing the same - Google Patents

Thin steel plate of high rectangular tube drawability and method of manufacturing the same

Info

Publication number
EP0903419A4
EP0903419A4 EP97913460A EP97913460A EP0903419A4 EP 0903419 A4 EP0903419 A4 EP 0903419A4 EP 97913460 A EP97913460 A EP 97913460A EP 97913460 A EP97913460 A EP 97913460A EP 0903419 A4 EP0903419 A4 EP 0903419A4
Authority
EP
European Patent Office
Prior art keywords
rolling
plate
same
thin steel
annealing
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Withdrawn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
EP97913460A
Other languages
German (de)
French (fr)
Other versions
EP0903419A1 (en
Inventor
Kaneharu Okuda
Yoshikazu Kawabata
Kei Sakata
Takaaki Hira
Atsushi Ogino
Takashi Obara
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.)
JFE Steel Corp
Original Assignee
Kawasaki Steel 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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Publication of EP0903419A1 publication Critical patent/EP0903419A1/en
Publication of EP0903419A4 publication Critical patent/EP0903419A4/en
Withdrawn legal-status Critical Current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
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • 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
    • C21D8/04—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 to produce plates or strips for drawing, e.g. for deep-drawing
    • C21D8/0421—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 to produce plates or strips for drawing, e.g. for deep-drawing characterised by the working steps
    • C21D8/0426—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
    • C21D8/04—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 to produce plates or strips for drawing, e.g. for deep-drawing
    • C21D8/0447—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 to produce plates or strips for drawing, e.g. for deep-drawing characterised by the heat treatment
    • C21D8/0463—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 to produce plates or strips for drawing, e.g. for deep-drawing characterised by the heat treatment following 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
    • C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
    • 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
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • 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
    • 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
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
    • 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
    • C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
    • 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
    • C21D8/04—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 to produce plates or strips for drawing, e.g. for deep-drawing
    • C21D8/0421—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 to produce plates or strips for drawing, e.g. for deep-drawing characterised by the working steps
    • C21D8/0436—Cold 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 Sheet Steel (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

A thin steel plate of a high rectangular tube drawability obtained by finishing rough rolling of steel - which containing not more than 0.02 wt.% of C, not more than 0.5 wt.% of Si, not more than 1.0 wt.% of Mn, not more than 0.15 wt.% of P, not more than 0.02 wt.% of S, 0.091-0.10 wt.% of Al, not more than 0.008 wt.% of N, one or two kinds of 0.001-0.20 wt.% of Ti and 0.001-0.15 wt.% of Nb, and the balance including Fe and unavoidable impurities - in a temperature region of 950 °C to Ar3 transformation point, finish-rolling the rough-rolled plate while lubricating the same in a temperature region of the Ar3 transformation point to 500 °C at a draft of over 70 %, pickling the resultant mother plate, annealing the mother plate under conditions satisfying the following relations: (T+273)(20+log t)≥2.50x104 (I) and 745≤T≤920 (2) where T represents the mother plate annealing temperature (°C); and t parent the plate annealing time (sec), and thereafter cold-rolling this mother plate at a draft of 50-95 %, i.e., recrystallization-annealing the same. The resultant thin steel plate satisfying the relations (r¿L? + rC)/2-rD≥0,67 and (rL + 2rD + rC)/4≥2.7, where rL represents the Lankford value in the rolling direction; rD the Lankford value in the direction at an angle of 45° with respect to the rolling direction; and rC the value in the direction perpendicular to the rolling direction.
EP97913460A 1996-12-24 1997-11-27 Thin steel plate of high rectangular tube drawability and method of manufacturing the same Withdrawn EP0903419A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP34344996 1996-12-24
JP343449/96 1996-12-24
PCT/JP1997/004336 WO1998028457A1 (en) 1996-12-24 1997-11-27 Thin steel plate of high rectangular tube drawability and method of manufacturing the same

Publications (2)

Publication Number Publication Date
EP0903419A1 EP0903419A1 (en) 1999-03-24
EP0903419A4 true EP0903419A4 (en) 2000-03-22

Family

ID=18361608

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97913460A Withdrawn EP0903419A4 (en) 1996-12-24 1997-11-27 Thin steel plate of high rectangular tube drawability and method of manufacturing the same

Country Status (3)

Country Link
EP (1) EP0903419A4 (en)
CN (1) CN1083902C (en)
WO (1) WO1998028457A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1150211A (en) * 1997-08-05 1999-02-23 Kawasaki Steel Corp Thick cold rolled steel sheet excellent in deep drawing workability and method for producing the same
WO2000006791A1 (en) † 1998-07-27 2000-02-10 Nippon Steel Corporation Ferrite-based thin steel sheet excellent in shape freezing feature and manufacturing method thereof
KR100711356B1 (en) * 2005-08-25 2007-04-27 주식회사 포스코 Galvanized steel sheet with excellent workability and its manufacturing method
CN101514425B (en) * 2008-02-21 2011-05-11 宝山钢铁股份有限公司 Yield strength 160MPa grade building earthquake-resistance low-yield strength steel and method for producing same
CN104789899B (en) * 2015-03-02 2017-09-01 河南工程学院 A kind of hot-rolled steel plate for double-sided enamel and its preparation process
CN111334716B (en) * 2020-03-25 2021-04-13 江西理工大学 Chromium-titanium-boron-containing low-carbon high-strength deep drawing steel and preparation method and application thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0574814A2 (en) * 1992-06-08 1993-12-22 Kawasaki Steel Corporation High-strength cold-rolled steel sheet excelling in deep drawability and method of producing the same
JPH07188776A (en) * 1993-12-27 1995-07-25 Kawasaki Steel Corp Method for manufacturing high strength cold rolled steel sheet with excellent deep drawability
JPH0841547A (en) * 1994-08-01 1996-02-13 Kawasaki Steel Corp Method for manufacturing high strength cold rolled steel sheet with excellent deep drawability

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5662926A (en) * 1979-10-29 1981-05-29 Kawasaki Steel Corp Production of steel sheet having super high r value
JPS6043415B2 (en) * 1980-07-07 1985-09-27 日本鋼管株式会社 Method for producing Al-killed cold-rolled steel sheet for drawing rectangular tubes with excellent wall-plake resistance
JPS6386819A (en) * 1986-09-30 1988-04-18 Kawasaki Steel Corp Production of cold rolled steel sheet for deep drawing
JPH0765118B2 (en) * 1987-05-22 1995-07-12 株式会社神戸製鋼所 Method for producing hot rolled steel sheet with excellent drawability

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0574814A2 (en) * 1992-06-08 1993-12-22 Kawasaki Steel Corporation High-strength cold-rolled steel sheet excelling in deep drawability and method of producing the same
JPH07188776A (en) * 1993-12-27 1995-07-25 Kawasaki Steel Corp Method for manufacturing high strength cold rolled steel sheet with excellent deep drawability
JPH0841547A (en) * 1994-08-01 1996-02-13 Kawasaki Steel Corp Method for manufacturing high strength cold rolled steel sheet with excellent deep drawability

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 10 30 November 1995 (1995-11-30) *
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 06 28 June 1996 (1996-06-28) *
See also references of WO9828457A1 *

Also Published As

Publication number Publication date
WO1998028457A1 (en) 1998-07-02
CN1083902C (en) 2002-05-01
EP0903419A1 (en) 1999-03-24
CN1198781A (en) 1998-11-11

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