JPS56127732A - Preparation of high tensile cold rolling steel plate - Google Patents

Preparation of high tensile cold rolling steel plate

Info

Publication number
JPS56127732A
JPS56127732A JP3117280A JP3117280A JPS56127732A JP S56127732 A JPS56127732 A JP S56127732A JP 3117280 A JP3117280 A JP 3117280A JP 3117280 A JP3117280 A JP 3117280A JP S56127732 A JPS56127732 A JP S56127732A
Authority
JP
Japan
Prior art keywords
less
steel
cold rolling
steel plate
high tensile
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.)
Granted
Application number
JP3117280A
Other languages
Japanese (ja)
Other versions
JPS595652B2 (en
Inventor
Shuji Nakai
Seiichi Sugisawa
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.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries Ltd
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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP55031172A priority Critical patent/JPS595652B2/en
Publication of JPS56127732A publication Critical patent/JPS56127732A/en
Publication of JPS595652B2 publication Critical patent/JPS595652B2/en
Expired 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
    • 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

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 Steel (AREA)
  • Heat Treatment Of Sheet Steel (AREA)

Abstract

PURPOSE:To obtain the high tensile cold rolling steel plate with a high yield point inexpensively by a method wherein a specific amount of Ti, Ca, Mg, La, Ce is further added to a steel of which a content of C, Si, Mn, Al, N and V, Nb is specified and a rolling and heat treatment condition is limited. CONSTITUTION:A steel consisting of 0.20% or less C, 0.2% or less Si, 0.015- 0.150% Al, 0.0040-0.020% N and one or more of 0.005-0.10% V, 0.005- 0.080% Nb, further, 0.30-0.05% Ti, 0.0050% or less Ca, one or more of 0.0050% or less rare earth element such as La or Ce and the remainder of Fe is prepared by melting. Said steel is subjected to hot rolling at a Ar3 transformation point or more and wound at 700 deg.C or less. Further, at a draft of 30% or more, said steel is subjected to cold rolling and the annealing is applied at a recrystallization point or less. Because the resulting steel plate contains a specific amount of Ti, Ca, REM or the like in a composition thereof, a form of nonmetal impurities can be controlled and it is possible to allow to impart yield strength of about 70-90kg/mm.<2>.
JP55031172A 1980-03-12 1980-03-12 Manufacturing method of high tensile strength cold rolled steel sheet Expired JPS595652B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55031172A JPS595652B2 (en) 1980-03-12 1980-03-12 Manufacturing method of high tensile strength cold rolled steel sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55031172A JPS595652B2 (en) 1980-03-12 1980-03-12 Manufacturing method of high tensile strength cold rolled steel sheet

Publications (2)

Publication Number Publication Date
JPS56127732A true JPS56127732A (en) 1981-10-06
JPS595652B2 JPS595652B2 (en) 1984-02-06

Family

ID=12324016

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55031172A Expired JPS595652B2 (en) 1980-03-12 1980-03-12 Manufacturing method of high tensile strength cold rolled steel sheet

Country Status (1)

Country Link
JP (1) JPS595652B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5328528A (en) * 1993-03-16 1994-07-12 China Steel Corporation Process for manufacturing cold-rolled steel sheets with high-strength, and high-ductility and its named article
US20140102604A1 (en) * 2012-10-11 2014-04-17 Thyssenkrupp Steel Usa, Llc Cold rolled recovery annealed mild steel and process for manufacture thereof
US20140261916A1 (en) * 2013-03-15 2014-09-18 Thyssenkrupp Steel Usa, Llc High strength - high ductility cold rolled recovery annealed steel and process for manufacture thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5030733A (en) * 1973-07-21 1975-03-27
JPS5252115A (en) * 1975-10-24 1977-04-26 Kawasaki Steel Corp Process for producing cold rolled steel plate of high strength
JPS535244A (en) * 1976-07-01 1978-01-18 Union Carbide Corp Themoplastic composition for extrusion film
JPS5427822A (en) * 1977-08-03 1979-03-02 Pilot Precision Preparation of armoring article of writing tool
JPS5436967A (en) * 1977-08-29 1979-03-19 Fuji Photo Optical Co Ltd Observing method of contour moire fringes

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5030733A (en) * 1973-07-21 1975-03-27
JPS5252115A (en) * 1975-10-24 1977-04-26 Kawasaki Steel Corp Process for producing cold rolled steel plate of high strength
JPS535244A (en) * 1976-07-01 1978-01-18 Union Carbide Corp Themoplastic composition for extrusion film
JPS5427822A (en) * 1977-08-03 1979-03-02 Pilot Precision Preparation of armoring article of writing tool
JPS5436967A (en) * 1977-08-29 1979-03-19 Fuji Photo Optical Co Ltd Observing method of contour moire fringes

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5328528A (en) * 1993-03-16 1994-07-12 China Steel Corporation Process for manufacturing cold-rolled steel sheets with high-strength, and high-ductility and its named article
US20140102604A1 (en) * 2012-10-11 2014-04-17 Thyssenkrupp Steel Usa, Llc Cold rolled recovery annealed mild steel and process for manufacture thereof
US20140261916A1 (en) * 2013-03-15 2014-09-18 Thyssenkrupp Steel Usa, Llc High strength - high ductility cold rolled recovery annealed steel and process for manufacture thereof

Also Published As

Publication number Publication date
JPS595652B2 (en) 1984-02-06

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