MY150597A - Cold-rolled steel sheet with excellent formability, shape fixability, and surface appearance and method for manufacturing the same - Google Patents

Cold-rolled steel sheet with excellent formability, shape fixability, and surface appearance and method for manufacturing the same

Info

Publication number
MY150597A
MY150597A MYPI2011004399A MY150597A MY 150597 A MY150597 A MY 150597A MY PI2011004399 A MYPI2011004399 A MY PI2011004399A MY 150597 A MY150597 A MY 150597A
Authority
MY
Malaysia
Prior art keywords
cold
steel sheet
less
rolled steel
rolling direction
Prior art date
Application number
Inventor
Yasuhara Eiko
Fujita Koichiro
Kizu Taro
Hanazawa Kazuhiro
Takajo Shigehiro
Original Assignee
Jfe 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 Jfe Steel Corp filed Critical Jfe Steel Corp
Publication of MY150597A publication Critical patent/MY150597A/en

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
    • C21D8/0221—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
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0236—Cold 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
    • C21D8/0273—Final recrystallisation annealing
    • 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
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • 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
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium

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)
  • Metal Rolling (AREA)

Abstract

IN LOW-CARBON STEEL, A COLD-ROLLED STEEL SHEET AND A METHOD FOR MANUFACTURING THE SAME ARE PROVIDED. THE COLD-ROLLED STEEL SHEET CAN SATISFY BOTH WORKABILITY AND SHAPE FIXABILITY; CAN BE SUBJECTED TO DRAWING, BENDING, AND STRETCHING; CAN ENSURE SHAPES REQUIRED FOR LARGE-SIZE PARTS; HAVE HIGH FLATNESS; IS FREE FROM APPEARANCE DEFECTS; AND IS EXCELLENT IN FORMABILITY, SHAPE FIXABILITY, AND SURFACE APPEARANCE. THE COLD-ROLLED STEEL SHEET HAS A COMPOSITION OF 0.030% TO 0.060% C, 0.05% OR LESS Si, 0.1% TO 0.3% Mn, 0.05% OR LESS P, 0.02% OR LESS S, 0.02% TO 0.10% A1, AND 0.005% OR LESS N ON A MASS BASIS, THE REMAINDER BEING IRON AND UNAVOIDABLE IMPURITIES. THE LANKFORD VALUE THEREOF IS 0.7 TO 1.4 IN A ROLLING DIRECTION AND A DIRECTION PERPENDICULAR TO THE ROLLING DIRECTION. THE IN-PLANE ANISOTROPY (?R) OF THE LANKFORD VALUE THEREOF SATISFIES THE INEQUALITY -0.2 ? ?R ? 0.2. THE MEAN YIELD STRENGTH THEREOF IS 230 MPa OR LESS AND THE MEAN ELONGATION THEREOF IS 40% OR MORE IN THREE DIRECTIONS: THE ROLLING DIRECTION, A DIRECTION AT 45 DEGREES TO THE ROLLING DIRECTION, AND A DIRECTION PERPENDICULAR TO THE ROLLING DIRECTION. THE YIELD ELONGATION OF THE COLD-ROLLED STEEL SHEET HELD AT 170°C FOR 60 MINUTES IS 2% OR LESS IN EACH OF THE THREE DIRECTIONS.
MYPI2011004399 2009-04-28 2010-02-19 Cold-rolled steel sheet with excellent formability, shape fixability, and surface appearance and method for manufacturing the same MY150597A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2009108820A JP4962527B2 (en) 2009-04-28 2009-04-28 Cold-rolled steel sheet excellent in formability, shape freezing property, surface appearance, and method for producing the same

Publications (1)

Publication Number Publication Date
MY150597A true MY150597A (en) 2014-01-30

Family

ID=43032002

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI2011004399 MY150597A (en) 2009-04-28 2010-02-19 Cold-rolled steel sheet with excellent formability, shape fixability, and surface appearance and method for manufacturing the same

Country Status (8)

Country Link
EP (1) EP2431490B1 (en)
JP (1) JP4962527B2 (en)
KR (1) KR101263612B1 (en)
CN (1) CN102414334B (en)
MX (1) MX2011010580A (en)
MY (1) MY150597A (en)
PL (1) PL2431490T3 (en)
WO (1) WO2010125848A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104264038A (en) * 2014-09-23 2015-01-07 攀钢集团西昌钢钒有限公司 440 MPa-grade continuous-annealed and cold-rolled structural steel plate and production process thereof
JP7355994B2 (en) * 2019-03-29 2023-10-04 日本製鉄株式会社 High carbon steel plate and its manufacturing method

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5548574B2 (en) * 1974-03-12 1980-12-06
JPS5910413B2 (en) * 1979-02-20 1984-03-08 株式会社神戸製鋼所 Manufacturing method of Al-killed cold-rolled high-strength steel sheet
JPS5896821A (en) * 1981-12-02 1983-06-09 Nippon Steel Corp Production of painted steel plate having strain aging hardness
JPS6386819A (en) * 1986-09-30 1988-04-18 Kawasaki Steel Corp Production of cold rolled steel sheet for deep drawing
JPH0826403B2 (en) 1991-03-05 1996-03-13 新日本製鐵株式会社 Method for producing cold-rolled steel sheet with excellent surface properties by continuous annealing
JPH10237548A (en) * 1997-02-20 1998-09-08 Nippon Steel Corp Manufacture of cold rolled steel sheet excellent in formability
JP4157279B2 (en) * 1998-07-27 2008-10-01 新日本製鐵株式会社 Ferritic steel sheet with excellent shape freezing properties
JP3532138B2 (en) * 2000-04-25 2004-05-31 新日本製鐵株式会社 Ferrite thin steel sheet excellent in shape freezing property and method for producing the same
KR100949694B1 (en) * 2002-03-29 2010-03-29 제이에프이 스틸 가부시키가이샤 Cold rolled steel sheet having ultrafine grain structure and method for producing the same
JP4189209B2 (en) 2002-12-04 2008-12-03 新日本製鐵株式会社 Steel plate with excellent shape freezing property and method for producing the same

Also Published As

Publication number Publication date
CN102414334A (en) 2012-04-11
EP2431490A4 (en) 2012-10-31
PL2431490T3 (en) 2014-05-30
EP2431490A1 (en) 2012-03-21
KR101263612B1 (en) 2013-05-10
CN102414334B (en) 2013-11-06
KR20110137816A (en) 2011-12-23
MX2011010580A (en) 2011-10-19
JP2010255069A (en) 2010-11-11
WO2010125848A1 (en) 2010-11-04
EP2431490B1 (en) 2014-01-15
JP4962527B2 (en) 2012-06-27

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