JPS6462420A - Production of high-carbon steel sheet having excellent ductility - Google Patents
Production of high-carbon steel sheet having excellent ductilityInfo
- Publication number
- JPS6462420A JPS6462420A JP21595087A JP21595087A JPS6462420A JP S6462420 A JPS6462420 A JP S6462420A JP 21595087 A JP21595087 A JP 21595087A JP 21595087 A JP21595087 A JP 21595087A JP S6462420 A JPS6462420 A JP S6462420A
- Authority
- JP
- Japan
- Prior art keywords
- steel sheet
- carbon steel
- temp
- sheet
- excellent ductility
- 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:To produce a high-carbon steel sheet having high strength and ductility by heating a cold rolled sheet consisting of a high-carbon steel to austenite structure, then subjecting the sheet to heat treatment under specific conditions. CONSTITUTION:A steel slab having the compsn. contg., by wt.%, 0.20-0.70% C, 0.5-3.0% Si, 0.5-2.5% Mn, <=0.010% P, and <=0.010% S is worked by hot rolling and cold rolling to a sheet material of a desired thickness. This high- carbon steel sheet is heated and held for 1-10min to and at the temp. above the AC3 transformation point to austenitize the structure. The steel sheet is then cooled within 5min in a 650-775 deg.C range at >=20 deg.C/sec cooling rate down to the holding temp. below said temp. range and after the steel sheet is held for 1-15min at 350-450 deg.C holding temp., the steel sheet is cooled down to room temp. The high-carbon steel sheet having >=90kg/mm<2> tensile strength and excellent ductility is produced at a low cost.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21595087A JPS6462420A (en) | 1987-08-29 | 1987-08-29 | Production of high-carbon steel sheet having excellent ductility |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21595087A JPS6462420A (en) | 1987-08-29 | 1987-08-29 | Production of high-carbon steel sheet having excellent ductility |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6462420A true JPS6462420A (en) | 1989-03-08 |
JPH0414168B2 JPH0414168B2 (en) | 1992-03-12 |
Family
ID=16680940
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21595087A Granted JPS6462420A (en) | 1987-08-29 | 1987-08-29 | Production of high-carbon steel sheet having excellent ductility |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6462420A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62188729A (en) * | 1986-02-13 | 1987-08-18 | Nippon Steel Corp | Manufacture of high strength steel superior in workability |
-
1987
- 1987-08-29 JP JP21595087A patent/JPS6462420A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62188729A (en) * | 1986-02-13 | 1987-08-18 | Nippon Steel Corp | Manufacture of high strength steel superior in workability |
Also Published As
Publication number | Publication date |
---|---|
JPH0414168B2 (en) | 1992-03-12 |
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