JPS5531182A - High strength cold rolled steel plate with superior workability and manufacture thereof - Google Patents
High strength cold rolled steel plate with superior workability and manufacture thereofInfo
- Publication number
- JPS5531182A JPS5531182A JP10507578A JP10507578A JPS5531182A JP S5531182 A JPS5531182 A JP S5531182A JP 10507578 A JP10507578 A JP 10507578A JP 10507578 A JP10507578 A JP 10507578A JP S5531182 A JPS5531182 A JP S5531182A
- Authority
- JP
- Japan
- Prior art keywords
- cold rolled
- steel plate
- sol
- manufacture
- steel
- 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 provide the title steel plate having a drawn grain structure and contg. C, Mn, P, sol. Al and N in a specified ratio while regulating the ratio of sol. Al/N to above a predetermined value.
CONSTITUTION: Steel is prepared consisting of C≤0.10%, Mn 0.02W3.0%, P 0.04W0.20%, S≤0.015%, esp.≤0.010%, sol. Al 0.02W0.30%, N 0.0075W 0.0200%, Si 0.0200W0.300% and the balance Fe. The ratio of sol. Al(%)/N(%) in the steel is required to be 2 or more. This steel is hot rolled by a usual method, coiled at below 600°C, and cold rolled at a reduction ratio above 30%. This cold rolled plate is then box-annealed in the form of a tight coil as usual to manufacture a high strength cold rolled steel plate having a predetermined drawn grain structure. This plate exhibits a tensile strength above 35kg/mm2 and is equal to a conventional cold rolled steel plate in characteristics such as workability and weldability.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10507578A JPS5531182A (en) | 1978-08-28 | 1978-08-28 | High strength cold rolled steel plate with superior workability and manufacture thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10507578A JPS5531182A (en) | 1978-08-28 | 1978-08-28 | High strength cold rolled steel plate with superior workability and manufacture thereof |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3255182A Division JPS57203749A (en) | 1982-03-01 | 1982-03-01 | High strength cold rolled steel plate of superior workability and its production |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5531182A true JPS5531182A (en) | 1980-03-05 |
JPS5747746B2 JPS5747746B2 (en) | 1982-10-12 |
Family
ID=14397813
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10507578A Granted JPS5531182A (en) | 1978-08-28 | 1978-08-28 | High strength cold rolled steel plate with superior workability and manufacture thereof |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5531182A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56130429A (en) * | 1980-03-13 | 1981-10-13 | Sumitomo Metal Ind Ltd | Production of high-tensile cold rolled steel sheet of superior deep drawability |
JPS56166328A (en) * | 1980-05-27 | 1981-12-21 | Sumitomo Metal Ind Ltd | Manufacture of high-tensile cold-rolled steel plate with heat hardenability for deep drawing |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI290177B (en) | 2001-08-24 | 2007-11-21 | Nippon Steel Corp | A steel sheet excellent in workability and method for producing the same |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4870611A (en) * | 1971-12-27 | 1973-09-25 | ||
JPS4959019A (en) * | 1972-10-11 | 1974-06-07 | ||
JPS5087917A (en) * | 1973-12-10 | 1975-07-15 |
-
1978
- 1978-08-28 JP JP10507578A patent/JPS5531182A/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4870611A (en) * | 1971-12-27 | 1973-09-25 | ||
JPS4959019A (en) * | 1972-10-11 | 1974-06-07 | ||
JPS5087917A (en) * | 1973-12-10 | 1975-07-15 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56130429A (en) * | 1980-03-13 | 1981-10-13 | Sumitomo Metal Ind Ltd | Production of high-tensile cold rolled steel sheet of superior deep drawability |
JPS5910976B2 (en) * | 1980-03-13 | 1984-03-13 | 住友金属工業株式会社 | Method for manufacturing high-strength cold-rolled steel sheet with excellent deep drawability |
JPS56166328A (en) * | 1980-05-27 | 1981-12-21 | Sumitomo Metal Ind Ltd | Manufacture of high-tensile cold-rolled steel plate with heat hardenability for deep drawing |
JPS592725B2 (en) * | 1980-05-27 | 1984-01-20 | 住友金属工業株式会社 | Method for producing thermosetting high-strength cold-rolled steel sheet for deep drawing |
Also Published As
Publication number | Publication date |
---|---|
JPS5747746B2 (en) | 1982-10-12 |
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