JPS55107733A - Cold rolled steel plate having superior press workability - Google Patents

Cold rolled steel plate having superior press workability

Info

Publication number
JPS55107733A
JPS55107733A JP1640179A JP1640179A JPS55107733A JP S55107733 A JPS55107733 A JP S55107733A JP 1640179 A JP1640179 A JP 1640179A JP 1640179 A JP1640179 A JP 1640179A JP S55107733 A JPS55107733 A JP S55107733A
Authority
JP
Japan
Prior art keywords
steel plate
content
sol
cold rolled
press workability
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.)
Pending
Application number
JP1640179A
Other languages
Japanese (ja)
Inventor
Isao Ito
Yoshio Sakamoto
Kojiro Eguchi
Noboru Okamoto
Hiroyuki Uesugi
Takumasa Shibayama
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
Priority to JP1640179A priority Critical patent/JPS55107733A/en
Publication of JPS55107733A publication Critical patent/JPS55107733A/en
Pending legal-status Critical Current

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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • C21D9/48—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals deep-drawing sheets

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Sheet Steel (AREA)

Abstract

PURPOSE:To improve the press workability of a steel plate used in the auto industry by hot rolling a steel with a low N content, a specified relation between B and N contents, a specified Al content, etc. followed by cold rolling and recrystallization annealing. CONSTITUTION:A steel consisting of, by wt., C 0.002-0.10%, N<=0.0035%, acid sol. Al 0.001-0.010%, B<=0.0025%, P<=0.1%, S<=0.03%, Si<=0.03%, Mn<=1.0%, and the balance Fe and inevitable impurities and satisfying (B%)-11/14(N%)<= 0.0005% and Mn/S>=7 is hot rolled by low temp. heating, cold rolled, and subjected to recrystallization annealing. By restricting the N content of the compsn. and combinedly adding an adequate amt. of Al and B the contents of AlN, BN, sol. Al and sol. N in the resulting steel plate are regulated to optimum ranges, so the plate shows superior values in yield strength, tensile strength, total elongation, Erichsen test, etc.
JP1640179A 1979-02-15 1979-02-15 Cold rolled steel plate having superior press workability Pending JPS55107733A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1640179A JPS55107733A (en) 1979-02-15 1979-02-15 Cold rolled steel plate having superior press workability

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1640179A JPS55107733A (en) 1979-02-15 1979-02-15 Cold rolled steel plate having superior press workability

Publications (1)

Publication Number Publication Date
JPS55107733A true JPS55107733A (en) 1980-08-19

Family

ID=11915215

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1640179A Pending JPS55107733A (en) 1979-02-15 1979-02-15 Cold rolled steel plate having superior press workability

Country Status (1)

Country Link
JP (1) JPS55107733A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5680354A (en) * 1979-12-06 1981-07-01 Nippon Steel Corp Method of suppressing cracking of b-containing steel ingot continuously cast
JPS56156720A (en) * 1980-05-01 1981-12-03 Nippon Steel Corp Manufacture of cold rolled steel plate excellent in workability
JPS5819465A (en) * 1981-07-27 1983-02-04 Nippon Kokan Kk <Nkk> Manufacture of galvanized steel plate with superior press formability
JPS6082616A (en) * 1983-10-13 1985-05-10 Kawasaki Steel Corp Production of extra low carbon cold rolled steel plate for deep drawing
JPS62139849A (en) * 1985-12-13 1987-06-23 Kobe Steel Ltd Hot rolled soft steel sheet having superior workability
CN103757644A (en) * 2014-01-23 2014-04-30 常州盛德无缝钢管有限公司 Complex heat treatment method capable of improving nickel-based alloy pipe

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51138516A (en) * 1975-05-27 1976-11-30 Nippon Steel Corp Process for producing cold rolled steel sheet having excellent pressforming properties by low temperature heating of slab
JPS5577910A (en) * 1978-12-08 1980-06-12 Nippon Steel Corp Manufacture through continuous annealing of cold rolled steel sheet for drawing work

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51138516A (en) * 1975-05-27 1976-11-30 Nippon Steel Corp Process for producing cold rolled steel sheet having excellent pressforming properties by low temperature heating of slab
JPS5577910A (en) * 1978-12-08 1980-06-12 Nippon Steel Corp Manufacture through continuous annealing of cold rolled steel sheet for drawing work

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5680354A (en) * 1979-12-06 1981-07-01 Nippon Steel Corp Method of suppressing cracking of b-containing steel ingot continuously cast
JPS56156720A (en) * 1980-05-01 1981-12-03 Nippon Steel Corp Manufacture of cold rolled steel plate excellent in workability
JPS5819465A (en) * 1981-07-27 1983-02-04 Nippon Kokan Kk <Nkk> Manufacture of galvanized steel plate with superior press formability
JPS6082616A (en) * 1983-10-13 1985-05-10 Kawasaki Steel Corp Production of extra low carbon cold rolled steel plate for deep drawing
JPS62139849A (en) * 1985-12-13 1987-06-23 Kobe Steel Ltd Hot rolled soft steel sheet having superior workability
CN103757644A (en) * 2014-01-23 2014-04-30 常州盛德无缝钢管有限公司 Complex heat treatment method capable of improving nickel-based alloy pipe

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