JPS6479347A - High strength hot rolled steel plate having drastically excellent cold workability and its manufacture - Google Patents

High strength hot rolled steel plate having drastically excellent cold workability and its manufacture

Info

Publication number
JPS6479347A
JPS6479347A JP2576788A JP2576788A JPS6479347A JP S6479347 A JPS6479347 A JP S6479347A JP 2576788 A JP2576788 A JP 2576788A JP 2576788 A JP2576788 A JP 2576788A JP S6479347 A JPS6479347 A JP S6479347A
Authority
JP
Japan
Prior art keywords
steel plate
manufacture
rolled steel
high strength
hot rolled
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
JP2576788A
Other languages
Japanese (ja)
Other versions
JPH0369979B2 (en
Inventor
Koji Kishida
Osamu Akisue
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
Nippon 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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP2576788A priority Critical patent/JPS6479347A/en
Priority to PCT/JP1988/000639 priority patent/WO1988010318A1/en
Priority to US07/320,265 priority patent/US4925500A/en
Priority to EP88906041A priority patent/EP0322463B1/en
Priority to DE88906041T priority patent/DE3881002T2/en
Publication of JPS6479347A publication Critical patent/JPS6479347A/en
Publication of JPH0369979B2 publication Critical patent/JPH0369979B2/ja
Granted legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE:To manufacture the title steel plate by hot rolling a steel contg. specific ratios of C, Mn, S, Cu, P, Si, N and sol Al and winding it under specific conditions. CONSTITUTION:The steel contg., by weight, 0.0005-0.015% C, 0.05-0.5% Mn, 0.001-0.030% S, 1.0-2.2% Cu, <=0.100% P, <=1.0% Si, <=0.005% N, 0.002-0.10% sol Al and the balance Fe with inevitable impurities is hot-rolled at the temp. of >=Ar, and the hot-rolled steel strip is thereafter wound at the temp. of <=500 deg.C. By this method, the title steel plate in which the generation of pearlite is evaded and consisting essentially of a ferrite single phase is obtd.
JP2576788A 1987-06-26 1988-02-08 High strength hot rolled steel plate having drastically excellent cold workability and its manufacture Granted JPS6479347A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2576788A JPS6479347A (en) 1988-02-08 1988-02-08 High strength hot rolled steel plate having drastically excellent cold workability and its manufacture
PCT/JP1988/000639 WO1988010318A1 (en) 1987-06-26 1988-06-27 High-strength, hot-rolled steel sheet having excellent cold workability and process for its production
US07/320,265 US4925500A (en) 1987-06-26 1988-06-27 High-strength hot-rolled steel sheet having remarkably excellent cold workability and process for manufacturing the same
EP88906041A EP0322463B1 (en) 1987-06-26 1988-06-27 Heat treatment hardenable hot rolled steel sheet having excellent cold workability and process for its production
DE88906041T DE3881002T2 (en) 1987-06-26 1988-06-27 THROUGH HEAT TREATMENT, HARDENABLE HOT ROLLED STEEL FINE SHEET WITH EXCELLENT COLD FORMABILITY AND METHOD FOR THE PRODUCTION THEREOF.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2576788A JPS6479347A (en) 1988-02-08 1988-02-08 High strength hot rolled steel plate having drastically excellent cold workability and its manufacture

Publications (2)

Publication Number Publication Date
JPS6479347A true JPS6479347A (en) 1989-03-24
JPH0369979B2 JPH0369979B2 (en) 1991-11-06

Family

ID=12174989

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2576788A Granted JPS6479347A (en) 1987-06-26 1988-02-08 High strength hot rolled steel plate having drastically excellent cold workability and its manufacture

Country Status (1)

Country Link
JP (1) JPS6479347A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02104616A (en) * 1988-10-13 1990-04-17 Sumitomo Metal Ind Ltd Production of hot-rolled steel sheet having excellent workability
KR20020049920A (en) * 2000-12-20 2002-06-26 이구택 A method for manufacturing hot-rolled steel sheet without the edge defects

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02104616A (en) * 1988-10-13 1990-04-17 Sumitomo Metal Ind Ltd Production of hot-rolled steel sheet having excellent workability
KR20020049920A (en) * 2000-12-20 2002-06-26 이구택 A method for manufacturing hot-rolled steel sheet without the edge defects

Also Published As

Publication number Publication date
JPH0369979B2 (en) 1991-11-06

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