JPS645644A - Production of thick steel plate having excellent characteristic in casting as it is - Google Patents

Production of thick steel plate having excellent characteristic in casting as it is

Info

Publication number
JPS645644A
JPS645644A JP16138187A JP16138187A JPS645644A JP S645644 A JPS645644 A JP S645644A JP 16138187 A JP16138187 A JP 16138187A JP 16138187 A JP16138187 A JP 16138187A JP S645644 A JPS645644 A JP S645644A
Authority
JP
Japan
Prior art keywords
cooling
casting
steel plate
thick steel
production
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
JP16138187A
Other languages
Japanese (ja)
Other versions
JPH0362501B2 (en
Inventor
Naoki Doi
Atsuhiko Yoshie
Hirobumi Morikawa
Yasumitsu Onoe
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 JP16138187A priority Critical patent/JPS645644A/en
Publication of JPS645644A publication Critical patent/JPS645644A/en
Publication of JPH0362501B2 publication Critical patent/JPH0362501B2/ja
Granted legal-status Critical Current

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  • Continuous Casting (AREA)

Abstract

PURPOSE:To improve quality of a product by cooling at the specific cooling speed at the time of cooling the steel composing of the specific contents of C, Si, Mn, Ti, N and Fe. CONSTITUTION:At the time of cooling the steel containing of by weight 0.03-0.25% C, 0.01-0.5% Si, 0.3-1.8% Mn, 0.004-0.04% Ti, 0.002-0.008% N and the balance Fe, it is cooled from 800 deg.C to <=600 deg.C at >=2 deg.C/sec and <=50 deg.C/sec cooling speed. In the above steel composition, further <=0.05% Al, <=1.5% Cu, <=5% Ni, <=1% Cr, <=1% Mo, <=0.2% Nb, <=0.5% V and <=0.0025% B may be contained. By this method, as fine grains of ferrite is generated in the coarse austenitic grain, the quality of the thick steel plate in casting as it is improved.
JP16138187A 1987-06-30 1987-06-30 Production of thick steel plate having excellent characteristic in casting as it is Granted JPS645644A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16138187A JPS645644A (en) 1987-06-30 1987-06-30 Production of thick steel plate having excellent characteristic in casting as it is

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16138187A JPS645644A (en) 1987-06-30 1987-06-30 Production of thick steel plate having excellent characteristic in casting as it is

Publications (2)

Publication Number Publication Date
JPS645644A true JPS645644A (en) 1989-01-10
JPH0362501B2 JPH0362501B2 (en) 1991-09-26

Family

ID=15734008

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16138187A Granted JPS645644A (en) 1987-06-30 1987-06-30 Production of thick steel plate having excellent characteristic in casting as it is

Country Status (1)

Country Link
JP (1) JPS645644A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002240756A (en) * 2001-02-15 2002-08-28 Ohtsu Tire & Rubber Co Ltd :The Elastic crawler

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5530050A (en) * 1978-08-25 1980-03-03 Tokyo Shibaura Electric Co Method of controlling water with radio float
JPS5711944A (en) * 1980-06-25 1982-01-21 Chisso Corp Optically active ester

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5530050A (en) * 1978-08-25 1980-03-03 Tokyo Shibaura Electric Co Method of controlling water with radio float
JPS5711944A (en) * 1980-06-25 1982-01-21 Chisso Corp Optically active ester

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002240756A (en) * 2001-02-15 2002-08-28 Ohtsu Tire & Rubber Co Ltd :The Elastic crawler

Also Published As

Publication number Publication date
JPH0362501B2 (en) 1991-09-26

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