JPS57126953A - Production of killed steel ingot for hot rolling - Google Patents
Production of killed steel ingot for hot rollingInfo
- Publication number
- JPS57126953A JPS57126953A JP1086881A JP1086881A JPS57126953A JP S57126953 A JPS57126953 A JP S57126953A JP 1086881 A JP1086881 A JP 1086881A JP 1086881 A JP1086881 A JP 1086881A JP S57126953 A JPS57126953 A JP S57126953A
- Authority
- JP
- Japan
- Prior art keywords
- hot rolling
- steel ingot
- killed steel
- production
- ingot
- 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
Landscapes
- Continuous Casting (AREA)
Abstract
PURPOSE: To obtain a killed steel ingot for hot rolling while preventing the generation of surface defects and reduction in toughness by a method wherein N is fixed by jointly adding Ti and Zr and the excess of Ti is avoided, when continuously casting a steel of specified composition containing either one or both of Nb and V.
CONSTITUTION: A steel containing up to 0.6% of C, up to 0.75% of Si, up to 2.0% of Mn, up to 0.04% of P, up to 0.05% of S, up to 0.09% of Al, up to 0.01% of N, 0.005W0.6% of Zr and 0.005W0.03% of Ti, and additionally containing at least one of 0.01W0.10% of Nb and 0.01W0.20% of V, the balance being Fe and unavoidable impurities, wherein 6.5TotalTi+3.4TotalZr-22.1TotalN≥0, is melted and is continuously cast to produce a predetermined ingot. Accordingly, the generation of surface defects characteristic of steels containing either one or both of Nb and V as well as the reduction of roughness can be prevented, and a killed steel ingot for hot rolling enhanced in required quality characteristics can be obtained.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1086881A JPS57126953A (en) | 1981-01-29 | 1981-01-29 | Production of killed steel ingot for hot rolling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1086881A JPS57126953A (en) | 1981-01-29 | 1981-01-29 | Production of killed steel ingot for hot rolling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57126953A true JPS57126953A (en) | 1982-08-06 |
Family
ID=11762315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1086881A Pending JPS57126953A (en) | 1981-01-29 | 1981-01-29 | Production of killed steel ingot for hot rolling |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57126953A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61204352A (en) * | 1985-03-07 | 1986-09-10 | Nippon Steel Corp | High strength nontemper steel material as warm forged |
| JPS61204353A (en) * | 1985-03-07 | 1986-09-10 | Nippon Steel Corp | Steel material having superior strength and toughness in as warm forged state |
-
1981
- 1981-01-29 JP JP1086881A patent/JPS57126953A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61204352A (en) * | 1985-03-07 | 1986-09-10 | Nippon Steel Corp | High strength nontemper steel material as warm forged |
| JPS61204353A (en) * | 1985-03-07 | 1986-09-10 | Nippon Steel Corp | Steel material having superior strength and toughness in as warm forged state |
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