JPS5625924A - Production of aluminum killed steel for low temperature use - Google Patents
Production of aluminum killed steel for low temperature useInfo
- Publication number
- JPS5625924A JPS5625924A JP10049679A JP10049679A JPS5625924A JP S5625924 A JPS5625924 A JP S5625924A JP 10049679 A JP10049679 A JP 10049679A JP 10049679 A JP10049679 A JP 10049679A JP S5625924 A JPS5625924 A JP S5625924A
- Authority
- JP
- Japan
- Prior art keywords
- steel
- temperature
- aluminum killed
- cooling
- killed 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 increase the toughness of aluminum killed steel at a low temperature without using grain refining elements such as Nb, V and Zr by hot-rolling the low carbon aluminum killed steel under the conditions of specific temperature and reduction of area and then applying sudden cooling-tempering or air-cooling up to the room temperature and/or tempering to the steel.
CONSTITUTION: Low carbon aluminum killed steel containing 1 or 2 kinds and over of 0.01W0.1% C, 0.1W0.9% Si, 0.5W2.0% Mn, 0.01W0.3% Al or, if necessary, 0.1W1.0% Cu, 0.05W0.5% Mo, 0.1W0.7% Cr, and 0.01W0.5% Ti is hot-rolled at the Ar3 transformation point of the steel within the temperature range, where deformed austenite is not recrystalized, in the reduction of area of about ≥30%. The steel is tempered at the temperature of Ac1 transformation point and less after cooling it suddenly up to the room temperature, air-cooled up to the room temperature after hot-rolling or tempered at the temperature of Ac1 transformation point and less after air cooling. Thus, the toughness of the steel at the low temperature can be increased without addition of specific elements such as Nb.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10049679A JPS5625924A (en) | 1979-08-06 | 1979-08-06 | Production of aluminum killed steel for low temperature use |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10049679A JPS5625924A (en) | 1979-08-06 | 1979-08-06 | Production of aluminum killed steel for low temperature use |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5625924A true JPS5625924A (en) | 1981-03-12 |
JPH0143816B2 JPH0143816B2 (en) | 1989-09-22 |
Family
ID=14275530
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10049679A Granted JPS5625924A (en) | 1979-08-06 | 1979-08-06 | Production of aluminum killed steel for low temperature use |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5625924A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60149722A (en) * | 1984-01-14 | 1985-08-07 | Nippon Steel Corp | Manufacture of cu added steel having superior toughness at low temperature in weld zone |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103563536A (en) * | 2013-11-12 | 2014-02-12 | 东北农业大学 | Cole crop pulling and taking jaw assembly |
-
1979
- 1979-08-06 JP JP10049679A patent/JPS5625924A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60149722A (en) * | 1984-01-14 | 1985-08-07 | Nippon Steel Corp | Manufacture of cu added steel having superior toughness at low temperature in weld zone |
JPH0247525B2 (en) * | 1984-01-14 | 1990-10-22 | Nippon Steel Corp |
Also Published As
Publication number | Publication date |
---|---|
JPH0143816B2 (en) | 1989-09-22 |
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