JPS54127827A - Production of low temperature steel - Google Patents
Production of low temperature steelInfo
- Publication number
- JPS54127827A JPS54127827A JP3640578A JP3640578A JPS54127827A JP S54127827 A JPS54127827 A JP S54127827A JP 3640578 A JP3640578 A JP 3640578A JP 3640578 A JP3640578 A JP 3640578A JP S54127827 A JPS54127827 A JP S54127827A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- low
- steel
- ferrite
- weldability
- 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.)
- Pending
Links
Abstract
PURPOSE: A low carbon high manganese steel containing a minor amount of Nb is adjustedly cooled in annealing process, thereby to economically provide a steel for low temperature use, having an excellent strength, low-temperature toughness, and weldability.
CONSTITUTION: A low carbon high manganese steel containing C<0.16%, Si: 0.10 to 1.0%, Mn<2.0%, P<0.035%, S<0.03%, Nb: 0.02 to 0.1%, sol Al: 0.01 to 0.09% is heated to a temperature of 880 to 950°C. In annealing process, cooling rate is controlled in a range of 3 to 4°C/sec from ferrite modification starting temperature 800°C to ferrite modification finishing temperature 550°C. In such process, large grain pearlite formation and bainite structure are effectively prevented, resulting in pearlite structure containing ferrite microstructure. As such, the so obtained steel material is excellent in strength, weldability, and low-temperature toughness. Beside, the steel is less expensive than conventional low-temperature steel since it contains no Ni component.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3640578A JPS54127827A (en) | 1978-03-28 | 1978-03-28 | Production of low temperature steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3640578A JPS54127827A (en) | 1978-03-28 | 1978-03-28 | Production of low temperature steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54127827A true JPS54127827A (en) | 1979-10-04 |
Family
ID=12468924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3640578A Pending JPS54127827A (en) | 1978-03-28 | 1978-03-28 | Production of low temperature steel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54127827A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01119617A (en) * | 1987-10-30 | 1989-05-11 | Nippon Steel Corp | Production of steel sheet |
| CN103667669A (en) * | 2013-12-09 | 2014-03-26 | 贵州华阳电工有限公司 | Method for flattening manganese steel belt |
-
1978
- 1978-03-28 JP JP3640578A patent/JPS54127827A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01119617A (en) * | 1987-10-30 | 1989-05-11 | Nippon Steel Corp | Production of steel sheet |
| CN103667669A (en) * | 2013-12-09 | 2014-03-26 | 贵州华阳电工有限公司 | Method for flattening manganese steel belt |
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