JPS54118325A - Production of hydrogen crack resistant nonrefined steel plate - Google Patents
Production of hydrogen crack resistant nonrefined steel plateInfo
- Publication number
- JPS54118325A JPS54118325A JP2549178A JP2549178A JPS54118325A JP S54118325 A JPS54118325 A JP S54118325A JP 2549178 A JP2549178 A JP 2549178A JP 2549178 A JP2549178 A JP 2549178A JP S54118325 A JPS54118325 A JP S54118325A
- Authority
- JP
- Japan
- Prior art keywords
- steel plate
- steel
- crack resistant
- nonrefined
- temperature
- 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
Links
Abstract
PURPOSE: Hyrogen crack resistant steel plate is provided from conventional types of steel plate by specifically controlled rolling and adequately accelerated cooling for structure control.
CONSTITUTION: Steel containing one or more of C:0.03 to 0.2%, Si:0.1 to 0.8%, Mn:0.5 to 2%, P:below 0.05%, S:below 0.01%, Cu:0.19%, Al:0.005 to 0.1%, and if required Nb: below 0.1%, V:below 0.1%, Ni:below 0.5%, Cr:below 0.5%, Ca:below 0.005% is heated to a temperature of 950 to 1200°C. The steel is then rolled under the condition such that accumulaed reduction in nonrecrystallization temperature zone is over 40% and the finishing temperature is over A3 modification pont. The steel is next acceleratedly cooled from a temperature higher than A3 modification point to 550 to 650°C at a rate of 3 to 20°C/sec followed by natural cooling, thereby forming 30% or more of bainite structure on the surface of the steel plate.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2549178A JPS54118325A (en) | 1978-03-08 | 1978-03-08 | Production of hydrogen crack resistant nonrefined steel plate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2549178A JPS54118325A (en) | 1978-03-08 | 1978-03-08 | Production of hydrogen crack resistant nonrefined steel plate |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54118325A true JPS54118325A (en) | 1979-09-13 |
JPS6223056B2 JPS6223056B2 (en) | 1987-05-21 |
Family
ID=12167520
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2549178A Granted JPS54118325A (en) | 1978-03-08 | 1978-03-08 | Production of hydrogen crack resistant nonrefined steel plate |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54118325A (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57152422A (en) * | 1981-03-16 | 1982-09-20 | Sumitomo Metal Ind Ltd | Production of high tensile steel plate of low crack sensitivity |
JPS58120726A (en) * | 1982-01-13 | 1983-07-18 | Nippon Kokan Kk <Nkk> | Manufacture of nontemper steel superior in sulfide corrosion crack resistance |
JPS58126924A (en) * | 1982-01-22 | 1983-07-28 | Kobe Steel Ltd | Production of thick walled unnormalized steel plate having high toughness |
JPS5976818A (en) * | 1982-10-22 | 1984-05-02 | Nippon Steel Corp | Manufacture of steel material excellent in hydrogen induced crack resistance |
JPS59104427A (en) * | 1982-12-03 | 1984-06-16 | Sumitomo Metal Ind Ltd | Preparation of non-normalized high tensile steel plate excellent in ductility |
JPS6070122A (en) * | 1983-09-26 | 1985-04-20 | Sumitomo Metal Ind Ltd | Manufacture of steel having superior resistance to hydrogen induced cracking |
JPS61276920A (en) * | 1985-05-30 | 1986-12-06 | Kobe Steel Ltd | Production of high tensile steel plate having excellent drop weight characteristic |
JPS6293313A (en) * | 1985-10-21 | 1987-04-28 | Kobe Steel Ltd | Manufacture of accerelatedly cooled steel sheet superior in stress relief annealing characteristic |
JPS62284043A (en) * | 1986-06-03 | 1987-12-09 | Nippon Kokan Kk <Nkk> | Steel excellent in sulfid stress corrosion cracking resistance in weld zone and its production |
JPS62290847A (en) * | 1986-06-11 | 1987-12-17 | Nippon Kokan Kk <Nkk> | Steel having superior resistance to sulfide stress corrosion cracking and its manufacture |
JP2007146230A (en) * | 2005-11-28 | 2007-06-14 | Nippon Steel Corp | Method for producing high strength steel sheet having >=760 mpa class tensile strength excellent in resistance to hydrogen induced crack and ductile fracture properties and method for producing high-strength steel tube using this steel sheet |
-
1978
- 1978-03-08 JP JP2549178A patent/JPS54118325A/en active Granted
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57152422A (en) * | 1981-03-16 | 1982-09-20 | Sumitomo Metal Ind Ltd | Production of high tensile steel plate of low crack sensitivity |
JPS58120726A (en) * | 1982-01-13 | 1983-07-18 | Nippon Kokan Kk <Nkk> | Manufacture of nontemper steel superior in sulfide corrosion crack resistance |
JPH0319285B2 (en) * | 1982-01-13 | 1991-03-14 | Nippon Kokan Kk | |
JPS58126924A (en) * | 1982-01-22 | 1983-07-28 | Kobe Steel Ltd | Production of thick walled unnormalized steel plate having high toughness |
JPH0114965B2 (en) * | 1982-10-22 | 1989-03-15 | Nippon Steel Corp | |
JPS5976818A (en) * | 1982-10-22 | 1984-05-02 | Nippon Steel Corp | Manufacture of steel material excellent in hydrogen induced crack resistance |
JPS59104427A (en) * | 1982-12-03 | 1984-06-16 | Sumitomo Metal Ind Ltd | Preparation of non-normalized high tensile steel plate excellent in ductility |
JPH0121849B2 (en) * | 1983-09-26 | 1989-04-24 | Sumitomo Metal Ind | |
JPS6070122A (en) * | 1983-09-26 | 1985-04-20 | Sumitomo Metal Ind Ltd | Manufacture of steel having superior resistance to hydrogen induced cracking |
JPS61276920A (en) * | 1985-05-30 | 1986-12-06 | Kobe Steel Ltd | Production of high tensile steel plate having excellent drop weight characteristic |
JPS6293313A (en) * | 1985-10-21 | 1987-04-28 | Kobe Steel Ltd | Manufacture of accerelatedly cooled steel sheet superior in stress relief annealing characteristic |
JPS62284043A (en) * | 1986-06-03 | 1987-12-09 | Nippon Kokan Kk <Nkk> | Steel excellent in sulfid stress corrosion cracking resistance in weld zone and its production |
JPH0543765B2 (en) * | 1986-06-03 | 1993-07-02 | Nippon Kokan Kk | |
JPS62290847A (en) * | 1986-06-11 | 1987-12-17 | Nippon Kokan Kk <Nkk> | Steel having superior resistance to sulfide stress corrosion cracking and its manufacture |
JPH0543766B2 (en) * | 1986-06-11 | 1993-07-02 | Nippon Kokan Kk | |
JP2007146230A (en) * | 2005-11-28 | 2007-06-14 | Nippon Steel Corp | Method for producing high strength steel sheet having >=760 mpa class tensile strength excellent in resistance to hydrogen induced crack and ductile fracture properties and method for producing high-strength steel tube using this steel sheet |
Also Published As
Publication number | Publication date |
---|---|
JPS6223056B2 (en) | 1987-05-21 |
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