JPS6415319A - Production of high tensile steel plate having excellent brittle fracture generation resistance characteristic - Google Patents
Production of high tensile steel plate having excellent brittle fracture generation resistance characteristicInfo
- Publication number
- JPS6415319A JPS6415319A JP17053087A JP17053087A JPS6415319A JP S6415319 A JPS6415319 A JP S6415319A JP 17053087 A JP17053087 A JP 17053087A JP 17053087 A JP17053087 A JP 17053087A JP S6415319 A JPS6415319 A JP S6415319A
- Authority
- JP
- Japan
- Prior art keywords
- steel
- steel plate
- high tensile
- pass
- resistance characteristic
- 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.)
- Pending
Links
Abstract
PURPOSE:To obtain a high tensile steel plate having the excellent brittle fracture generation resistance characteristic of a weld heat-affected zone by subjecting a steel specified in C, Si, Mn, N, Ti, and Al to heating, hot rolling and cooling in the stages under prescribed conditions. CONSTITUTION:The steel consisting, by weight %, of 0.03-0.15% C, 0.05-0.5% Si, 0.5-2% Mn, <=0.003% N, 3X[N]-0.02% Ti, and 0.005-0.05% Al is prepd. This steel is heated to 900-1050 deg.C. After the steel is heated, the steel is subjected to the pass to attain >=1alpha rolling shape ratio expressed by the equation (where H0: the thickness before the pass, H: the thickness after the pass, R: the roll diameter of rolling mills) in the austenite uncrystallization region of the Ar3 transformation point-(Ar3 transformation point +100 deg.C). The steel plate is cooled down to 500-600 deg.C at >=2 deg.C/sec cooling rate right after the end of this hot rolling.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17053087A JPS6415319A (en) | 1987-07-08 | 1987-07-08 | Production of high tensile steel plate having excellent brittle fracture generation resistance characteristic |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17053087A JPS6415319A (en) | 1987-07-08 | 1987-07-08 | Production of high tensile steel plate having excellent brittle fracture generation resistance characteristic |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6415319A true JPS6415319A (en) | 1989-01-19 |
Family
ID=15906636
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17053087A Pending JPS6415319A (en) | 1987-07-08 | 1987-07-08 | Production of high tensile steel plate having excellent brittle fracture generation resistance characteristic |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6415319A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0347916A (en) * | 1989-07-14 | 1991-02-28 | Kawasaki Steel Corp | Production of thick steel plate |
EP2088218A1 (en) * | 2006-11-07 | 2009-08-12 | Nippon Steel Corporation | High young's modulus steel plate and process for production thereof |
JP2014505170A (en) * | 2010-12-28 | 2014-02-27 | ポスコ | High strength steel sheet with excellent cryogenic toughness and method for producing the same |
US8802241B2 (en) | 2004-01-08 | 2014-08-12 | Nippon Steel & Sumitomo Metal Corporation | Steel sheet having high young's modulus, hot-dip galvanized steel sheet using the same, alloyed hot-dip galvanized steel sheet, steel pipe having high young's modulus, and methods for manufacturing the same |
WO2015178320A1 (en) * | 2014-05-22 | 2015-11-26 | 株式会社神戸製鋼所 | Thick steel plate |
CN109563598A (en) * | 2016-08-19 | 2019-04-02 | 株式会社神户制钢所 | Thick steel plate and its manufacturing method |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60149720A (en) * | 1984-01-12 | 1985-08-07 | Kawasaki Steel Corp | Production of high tension steel having less strain in sheet and having excellent weldability and low- temperature toughness |
JPS60258410A (en) * | 1984-06-06 | 1985-12-20 | Nippon Steel Corp | Manufacture of thick high tensile strength steel sheet superior in weldability and low temperature toughness |
-
1987
- 1987-07-08 JP JP17053087A patent/JPS6415319A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60149720A (en) * | 1984-01-12 | 1985-08-07 | Kawasaki Steel Corp | Production of high tension steel having less strain in sheet and having excellent weldability and low- temperature toughness |
JPS60258410A (en) * | 1984-06-06 | 1985-12-20 | Nippon Steel Corp | Manufacture of thick high tensile strength steel sheet superior in weldability and low temperature toughness |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0347916A (en) * | 1989-07-14 | 1991-02-28 | Kawasaki Steel Corp | Production of thick steel plate |
US8802241B2 (en) | 2004-01-08 | 2014-08-12 | Nippon Steel & Sumitomo Metal Corporation | Steel sheet having high young's modulus, hot-dip galvanized steel sheet using the same, alloyed hot-dip galvanized steel sheet, steel pipe having high young's modulus, and methods for manufacturing the same |
EP2088218A1 (en) * | 2006-11-07 | 2009-08-12 | Nippon Steel Corporation | High young's modulus steel plate and process for production thereof |
EP2088218A4 (en) * | 2006-11-07 | 2013-04-03 | Nippon Steel & Sumitomo Metal Corp | High young's modulus steel plate and process for production thereof |
JP2014505170A (en) * | 2010-12-28 | 2014-02-27 | ポスコ | High strength steel sheet with excellent cryogenic toughness and method for producing the same |
US9255305B2 (en) | 2010-12-28 | 2016-02-09 | Posco | High-strength steel sheet having superior toughness at cryogenic temperatures, and method for manufacturing same |
JP2016000855A (en) * | 2014-05-22 | 2016-01-07 | 株式会社神戸製鋼所 | Thick steel plate |
WO2015178320A1 (en) * | 2014-05-22 | 2015-11-26 | 株式会社神戸製鋼所 | Thick steel plate |
CN106460114A (en) * | 2014-05-22 | 2017-02-22 | 株式会社神户制钢所 | Thick steel plate |
EP3147379A4 (en) * | 2014-05-22 | 2017-10-04 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Thick steel plate |
KR20180115352A (en) * | 2014-05-22 | 2018-10-22 | 가부시키가이샤 고베 세이코쇼 | Thick steel plate |
EP3656886A1 (en) * | 2014-05-22 | 2020-05-27 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Steel plate |
CN109563598A (en) * | 2016-08-19 | 2019-04-02 | 株式会社神户制钢所 | Thick steel plate and its manufacturing method |
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