JPS54100920A - Excellently formable high strength cold rolled steel plate and method of producing same - Google Patents

Excellently formable high strength cold rolled steel plate and method of producing same

Info

Publication number
JPS54100920A
JPS54100920A JP811078A JP811078A JPS54100920A JP S54100920 A JPS54100920 A JP S54100920A JP 811078 A JP811078 A JP 811078A JP 811078 A JP811078 A JP 811078A JP S54100920 A JPS54100920 A JP S54100920A
Authority
JP
Japan
Prior art keywords
steel
cold rolled
high strength
steel plate
excellently
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
JP811078A
Other languages
Japanese (ja)
Other versions
JPS5758427B2 (en
Inventor
Masatoshi Sudo
Tsuneo Kamimura
Shunichi Hashimoto
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel 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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP811078A priority Critical patent/JPS54100920A/en
Publication of JPS54100920A publication Critical patent/JPS54100920A/en
Publication of JPS5758427B2 publication Critical patent/JPS5758427B2/ja
Granted legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: A specified amount of solid solution enhancing element such as Si and Mn is added to steel material together with Nb in an amount associated with N and C contents, and the composition steel is hot rolled in finishing stage and wound at a temperature within a specified range, thus providing high tensile cold steel plates having excellent drawability and tensile strength.
CONSTITUTION: The steel contains C<0.02%, Si; 0.5 to 2.0%, Mn; 0.2 to 1.5%, Al; 0.01 to 0.1%, Nb; 0.02 to 0.2%, with an atomic ratio of Nb/(C+N) being 0.8 to 2.0. This composition steel material is uniformly heated at 1200°C, and heat rolled to be finished into steel plate at a temperature above A3 modification point within the range of 150°C. The plate is wound at a temperature above 650°C, pickled, cold rolled to 0.8 mm thick plate and annealed. The resulting high strength cold rolled steel has an excellent drawability and such a strength as 40 to 55 kg/mm2.
COPYRIGHT: (C)1979,JPO&Japio
JP811078A 1978-01-26 1978-01-26 Excellently formable high strength cold rolled steel plate and method of producing same Granted JPS54100920A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP811078A JPS54100920A (en) 1978-01-26 1978-01-26 Excellently formable high strength cold rolled steel plate and method of producing same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP811078A JPS54100920A (en) 1978-01-26 1978-01-26 Excellently formable high strength cold rolled steel plate and method of producing same

Publications (2)

Publication Number Publication Date
JPS54100920A true JPS54100920A (en) 1979-08-09
JPS5758427B2 JPS5758427B2 (en) 1982-12-09

Family

ID=11684146

Family Applications (1)

Application Number Title Priority Date Filing Date
JP811078A Granted JPS54100920A (en) 1978-01-26 1978-01-26 Excellently formable high strength cold rolled steel plate and method of producing same

Country Status (1)

Country Link
JP (1) JPS54100920A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5558347A (en) * 1978-10-25 1980-05-01 Sumitomo Metal Ind Ltd Low alloy, high tensile steel and manufacture thereof
WO1981002900A1 (en) * 1980-03-31 1981-10-15 Kawasaki Steel Co High-tensile,cold-rolled steel plate with excellent formability and process for its production,as well as high-tensile,galvanized steel plate with excellent formability,and process for its produciton
JPS56169752A (en) * 1980-05-31 1981-12-26 Kawasaki Steel Corp Cold rolled steel plate having highly excellent moldability and production thereof
JPS5747832A (en) * 1980-09-01 1982-03-18 Nippon Steel Corp Production of high strength cold rolled steel plate of superior deep drawability and working embrittleness resistance
US4325751A (en) * 1979-05-09 1982-04-20 Ssab Svenskt Stal Aktiebolag Method for producing a steel strip composed of a dual-phase steel
JPS5770258A (en) * 1980-10-18 1982-04-30 Kawasaki Steel Corp Cold rolled steel sheet to be drawn excellent in seizing harden ability and manufacture thereor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50128616A (en) * 1974-03-30 1975-10-09
JPS5186015A (en) * 1975-01-27 1976-07-28 Nippon Kokan Kk Nijiseikeiseino suguretareienkochoryokukobanno seizohoho
JPS51110416A (en) * 1975-02-28 1976-09-30 Armco Steel Corp

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50128616A (en) * 1974-03-30 1975-10-09
JPS5186015A (en) * 1975-01-27 1976-07-28 Nippon Kokan Kk Nijiseikeiseino suguretareienkochoryokukobanno seizohoho
JPS51110416A (en) * 1975-02-28 1976-09-30 Armco Steel Corp

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5558347A (en) * 1978-10-25 1980-05-01 Sumitomo Metal Ind Ltd Low alloy, high tensile steel and manufacture thereof
US4325751A (en) * 1979-05-09 1982-04-20 Ssab Svenskt Stal Aktiebolag Method for producing a steel strip composed of a dual-phase steel
WO1981002900A1 (en) * 1980-03-31 1981-10-15 Kawasaki Steel Co High-tensile,cold-rolled steel plate with excellent formability and process for its production,as well as high-tensile,galvanized steel plate with excellent formability,and process for its produciton
US4473414A (en) * 1980-03-31 1984-09-25 Kawasaki Steel Corporation High tensile strength cold rolled steel sheets and high tensile strength hot-dip galvanized steel sheets
US4544419A (en) * 1980-03-31 1985-10-01 Kawasaki Steel Corporation Method for producing high tensile strength cold rolled steel sheets having excellent formability and high tensile strength hot-dip galvanized steel sheets having excellent formability
JPS56169752A (en) * 1980-05-31 1981-12-26 Kawasaki Steel Corp Cold rolled steel plate having highly excellent moldability and production thereof
JPS5747832A (en) * 1980-09-01 1982-03-18 Nippon Steel Corp Production of high strength cold rolled steel plate of superior deep drawability and working embrittleness resistance
JPS5770258A (en) * 1980-10-18 1982-04-30 Kawasaki Steel Corp Cold rolled steel sheet to be drawn excellent in seizing harden ability and manufacture thereor

Also Published As

Publication number Publication date
JPS5758427B2 (en) 1982-12-09

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