JPS56166319A - Manufacture of nonrefined steel - Google Patents
Manufacture of nonrefined steelInfo
- Publication number
- JPS56166319A JPS56166319A JP7062980A JP7062980A JPS56166319A JP S56166319 A JPS56166319 A JP S56166319A JP 7062980 A JP7062980 A JP 7062980A JP 7062980 A JP7062980 A JP 7062980A JP S56166319 A JPS56166319 A JP S56166319A
- Authority
- JP
- Japan
- Prior art keywords
- steel
- rolling
- nonrefined
- ppm
- manufacture
- 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
Landscapes
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
PURPOSE: To manufacture a nonrefined steel with high strength and high toughness by suitably combining the conditions of heating and rolling with those of accelerated cooling after the rolling, and carrying out dehydrogenation.
CONSTITUTION: Steel is subjected to soln. heat treatment by heating to the Ac3 point or above and hot rolling, that is, controlled rolling making the austenite grains fine especially in a temp. zone under the recrystallization temp. The steel contg. unrecrystallized austenite before recrystallization is acceleratedly cooled at ≥1, especially 5W30°C/sec cooling rate. Simultaneously with the accelerated cooling, dehydrogenation is effected so as to control hydrogen Hc(ppm) in the steel at the ?central part in the plate thickness direction to Hc(ppm) ≤1.10-0.005σy. Hydrogen in the steel is removed by a conventional known method such as the vacuum degassing of molten steel.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7062980A JPS56166319A (en) | 1980-05-27 | 1980-05-27 | Manufacture of nonrefined steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7062980A JPS56166319A (en) | 1980-05-27 | 1980-05-27 | Manufacture of nonrefined steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56166319A true JPS56166319A (en) | 1981-12-21 |
| JPS636612B2 JPS636612B2 (en) | 1988-02-10 |
Family
ID=13437107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7062980A Granted JPS56166319A (en) | 1980-05-27 | 1980-05-27 | Manufacture of nonrefined steel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56166319A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003095693A1 (en) * | 2002-05-08 | 2003-11-20 | Nippon Steel Corporation | High strength stainless steel wire excellent in ductility-toughness and modulus of rigidity and method for production thereof |
-
1980
- 1980-05-27 JP JP7062980A patent/JPS56166319A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003095693A1 (en) * | 2002-05-08 | 2003-11-20 | Nippon Steel Corporation | High strength stainless steel wire excellent in ductility-toughness and modulus of rigidity and method for production thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS636612B2 (en) | 1988-02-10 |
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