JPS6462414A - Production of high-tensile unequal-sided unequal thickness steel shape - Google Patents

Production of high-tensile unequal-sided unequal thickness steel shape

Info

Publication number
JPS6462414A
JPS6462414A JP21862687A JP21862687A JPS6462414A JP S6462414 A JPS6462414 A JP S6462414A JP 21862687 A JP21862687 A JP 21862687A JP 21862687 A JP21862687 A JP 21862687A JP S6462414 A JPS6462414 A JP S6462414A
Authority
JP
Japan
Prior art keywords
unequal
rolling
sided
steel
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
JP21862687A
Other languages
Japanese (ja)
Other versions
JPH066738B2 (en
Inventor
Makoto Watanabe
Kiyotaka Morioka
Nobuo Fukushige
Keiji Okamoto
Katsutoshi Mukai
Masataka Suga
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 Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP21862687A priority Critical patent/JPH066738B2/en
Publication of JPS6462414A publication Critical patent/JPS6462414A/en
Publication of JPH066738B2 publication Critical patent/JPH066738B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Heat Treatment Of Steel (AREA)

Abstract

PURPOSE:To easily produce high-tensile unequal-sided unequal thickness steel shapes having uniformly high strength and high hardness by hot rolling a steel having a specific compsn. consisting of C, Si, Mn and Fe and adequately controlling the hot rolling and the subsequent cooling. CONSTITUTION:The steel contg. 0.03-0.18% C, 0.02-0.60% Si, 0.6-2.0% Mn, contg. further >=one kinds among 0.005-0.1% Al, <=0.15% V, <=0.15% Nb, 0.003-0.025% Ti, <=0.5% Cu, <=0.5% Ni, <=0.0010% B, <=0.010% N, <=0.4% Cr, and <=0.2% Mo at need and consisting of the balance Fe and inevitable impurities is hot rolled to obtain the unequal-sided unequal thickness steel shapes consisting of thick flange parts and thin web part. The rolling finishing temp. is set from 650 deg.C up to the upper limit value of the unrecrystallization temp. region. Furthermore, the flange parts are forcibly cooled during the process of the rolling so that the temps. in the flange parts and the web part are held nearly the same at the end of the rolling. The entire part is then subjected to accelerated cooling at 5-50 deg.C/sec down to 450-600 deg.C and thereafter, the steel shapes are cooled with air.
JP21862687A 1987-08-31 1987-08-31 Method for producing high-strength unequal thickness unequal thick section steel Expired - Fee Related JPH066738B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21862687A JPH066738B2 (en) 1987-08-31 1987-08-31 Method for producing high-strength unequal thickness unequal thick section steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21862687A JPH066738B2 (en) 1987-08-31 1987-08-31 Method for producing high-strength unequal thickness unequal thick section steel

Publications (2)

Publication Number Publication Date
JPS6462414A true JPS6462414A (en) 1989-03-08
JPH066738B2 JPH066738B2 (en) 1994-01-26

Family

ID=16722902

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21862687A Expired - Fee Related JPH066738B2 (en) 1987-08-31 1987-08-31 Method for producing high-strength unequal thickness unequal thick section steel

Country Status (1)

Country Link
JP (1) JPH066738B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012118275A3 (en) * 2011-03-03 2012-10-26 포항공과대학교 산학협력단 Alloy for a tower flange
KR101301617B1 (en) * 2011-05-13 2013-09-12 주식회사 태웅 Material having high strength and toughness and method for forming tower flange using the same
CN107447090A (en) * 2017-08-01 2017-12-08 清华大学 Nonuniform workpiece equilibrium heat-treating methods

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012118275A3 (en) * 2011-03-03 2012-10-26 포항공과대학교 산학협력단 Alloy for a tower flange
KR101301617B1 (en) * 2011-05-13 2013-09-12 주식회사 태웅 Material having high strength and toughness and method for forming tower flange using the same
CN107447090A (en) * 2017-08-01 2017-12-08 清华大学 Nonuniform workpiece equilibrium heat-treating methods

Also Published As

Publication number Publication date
JPH066738B2 (en) 1994-01-26

Similar Documents

Publication Publication Date Title
SE8307123D0 (en) METHOD OF MANUFACTURING HIGH TENSILE STRENGTH STEEL PLATES
KR900001424A (en) Manufacturing method of hot rolled steel or weight plate
US4594115A (en) Process for the manufacture of rods or machine wire of martensitic stainless steel and the products which are produced
CN110129653A (en) A kind of production method of soft 20CrMnTi round steel
GB1400872A (en) Production of low alloy steel wire
JPS6462415A (en) Production of high-tensile unequal-sided unequal thickness steel shape
JPS5792129A (en) Production of nonrefined high toughness steel
JPS6462414A (en) Production of high-tensile unequal-sided unequal thickness steel shape
JPS5684422A (en) Production of precipitation hardening type high-tension cold rolled steel plate
JPS55107763A (en) High tensile structural steel having superior strain relief treating embrittlement resistance
EP0216044A3 (en) Process for manufacturing non-aging steel strip having a high cold formability
US4533391A (en) Work-hardenable substantially austenitic stainless steel and method
JPS6468422A (en) Production of high tensile steel plate for building
JPS55115924A (en) Production of high toughness high tensile steel plate
JPS5442326A (en) Production of high-ductile, high-tensile normalized steel plate having decreased rolling anisotropy
JPS56166331A (en) Manufacture of cold rolled steel plate with superior press workability
JPS5726125A (en) Production of hot rolled steel plate of superior longitudinal crack resistance having low yield ratio and high tensile strength
JPS5457418A (en) Manufacture of high toughness, refined steel
JPS57210915A (en) Manufacture of refined high tensile steel with high toughness
JPS57158320A (en) Production of high tensile steel plate of good weldability
JPS648222A (en) Production of high toughness thick steel plate
JPS55119124A (en) Manufacture of low yield ratio nonheat-treated high tensile steel plate
JPS56119723A (en) Manufacture of nonrefined high tensile steel with superior low temperature toughness
JPS57104628A (en) Production of high-strength stainless steel plate
JPS55104427A (en) Production of steel for low temperature

Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees