JPS5375114A - Manufacture of structural steel - Google Patents

Manufacture of structural steel

Info

Publication number
JPS5375114A
JPS5375114A JP15075476A JP15075476A JPS5375114A JP S5375114 A JPS5375114 A JP S5375114A JP 15075476 A JP15075476 A JP 15075476A JP 15075476 A JP15075476 A JP 15075476A JP S5375114 A JPS5375114 A JP S5375114A
Authority
JP
Japan
Prior art keywords
structural steel
manufacture
temp
transformation
pearlite
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
JP15075476A
Other languages
Japanese (ja)
Other versions
JPS571569B2 (en
Inventor
Hiroshi Yada
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 JP15075476A priority Critical patent/JPS5375114A/en
Publication of JPS5375114A publication Critical patent/JPS5375114A/en
Publication of JPS571569B2 publication Critical patent/JPS571569B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To obtain structural steel of excellent strength and toughness having fine grain ferrite-pearlite or bainite structure by rapidly cooling hot rolled steel to optimum transformation temp. corresponding to a desired strength level and keeping it at the temp. followed by isothermal transformation.
COPYRIGHT: (C)1978,JPO&Japio
JP15075476A 1976-12-17 1976-12-17 Manufacture of structural steel Granted JPS5375114A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15075476A JPS5375114A (en) 1976-12-17 1976-12-17 Manufacture of structural steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15075476A JPS5375114A (en) 1976-12-17 1976-12-17 Manufacture of structural steel

Publications (2)

Publication Number Publication Date
JPS5375114A true JPS5375114A (en) 1978-07-04
JPS571569B2 JPS571569B2 (en) 1982-01-12

Family

ID=15503675

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15075476A Granted JPS5375114A (en) 1976-12-17 1976-12-17 Manufacture of structural steel

Country Status (1)

Country Link
JP (1) JPS5375114A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5741354A (en) * 1980-08-27 1982-03-08 Daido Steel Co Ltd Superhigh strength steel
US4474627A (en) * 1982-04-22 1984-10-02 Ugine Aciers Method of manufacturing steel bars and tubes with good mechanical characteristics
JPS59197545A (en) * 1983-04-20 1984-11-09 Sumitomo Metal Ind Ltd High strength and high toughness steel for railroad rolling stock
JPH03140441A (en) * 1989-10-26 1991-06-14 Mannesmann Ag Steel pipe material for reinforcing automobile door
JPH0693332A (en) * 1992-09-11 1994-04-05 Sumitomo Metal Ind Ltd Production of high tensile strength and high toughness fine bainitic steel
JP2016008349A (en) * 2014-06-26 2016-01-18 新日鐵住金株式会社 High-strength steel material and production method thereof

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5741354A (en) * 1980-08-27 1982-03-08 Daido Steel Co Ltd Superhigh strength steel
US4474627A (en) * 1982-04-22 1984-10-02 Ugine Aciers Method of manufacturing steel bars and tubes with good mechanical characteristics
JPS59197545A (en) * 1983-04-20 1984-11-09 Sumitomo Metal Ind Ltd High strength and high toughness steel for railroad rolling stock
JPH057454B2 (en) * 1983-04-20 1993-01-28 Sumitomo Metal Ind
JPH03140441A (en) * 1989-10-26 1991-06-14 Mannesmann Ag Steel pipe material for reinforcing automobile door
JPH0693332A (en) * 1992-09-11 1994-04-05 Sumitomo Metal Ind Ltd Production of high tensile strength and high toughness fine bainitic steel
JP2016008349A (en) * 2014-06-26 2016-01-18 新日鐵住金株式会社 High-strength steel material and production method thereof

Also Published As

Publication number Publication date
JPS571569B2 (en) 1982-01-12

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