JPS5633428A - Manufacture of hot rolled high tensile steel sheet - Google Patents
Manufacture of hot rolled high tensile steel sheetInfo
- Publication number
- JPS5633428A JPS5633428A JP10991779A JP10991779A JPS5633428A JP S5633428 A JPS5633428 A JP S5633428A JP 10991779 A JP10991779 A JP 10991779A JP 10991779 A JP10991779 A JP 10991779A JP S5633428 A JPS5633428 A JP S5633428A
- Authority
- JP
- Japan
- Prior art keywords
- hot rolled
- steel sheet
- sheet
- high tensile
- tensile 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.)
- Pending
Links
Abstract
PURPOSE: To manufacture hot rolled high tensile steel sheet of composite structure having ferrite and martensite structures, by hot rolling a steel material contg. a samll quantity of alloy elements into sheet, then by controlling the cooling of the sheet under specific conditions.
CONSTITUTION: A steel material contg. as fundamental components <0.20% C, <2% Si, 0.60W3.0% Mn, <0.100% soluble Al, and if necessary one or more members among the group <0.5 Mo, <0.5% Cr, <0.5% Ni, <0.5% Cu, in addition if necessary one or more members among the group <0.10% Ca, <0.10% Zr, <0.10% rare earth elements is hot rolled at ≥Ar3 transformation temp. into steel sheet. The hot rolled sheet is slowly cooled naturally or with water, and is cooled from 500W700°C temp. range to ≤200°C temp. at 30W200°C/sec cooling rate, then it is wound into a coil. Hereby hot rolled high tensile steel sheet oc composite structure having ferrite and martensite atructures is manufactured.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10991779A JPS5633428A (en) | 1979-08-28 | 1979-08-28 | Manufacture of hot rolled high tensile steel sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10991779A JPS5633428A (en) | 1979-08-28 | 1979-08-28 | Manufacture of hot rolled high tensile steel sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5633428A true JPS5633428A (en) | 1981-04-03 |
Family
ID=14522407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10991779A Pending JPS5633428A (en) | 1979-08-28 | 1979-08-28 | Manufacture of hot rolled high tensile steel sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5633428A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57194209A (en) * | 1981-05-25 | 1982-11-29 | Nippon Kokan Kk <Nkk> | Production of hot rolled high tensile steel plate or high forming property |
| JPS62103320A (en) * | 1985-10-30 | 1987-05-13 | Nippon Kokan Kk <Nkk> | Manufacture of high tension steel plate having superior uniformity in direction of thickness |
| WO2001071047A1 (en) * | 2000-03-22 | 2001-09-27 | Centre De Recherches Metallurgiques, Association Sans But Lucratif | Method for making a multiphase hot-rolled steel strip |
-
1979
- 1979-08-28 JP JP10991779A patent/JPS5633428A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57194209A (en) * | 1981-05-25 | 1982-11-29 | Nippon Kokan Kk <Nkk> | Production of hot rolled high tensile steel plate or high forming property |
| JPS6339647B2 (en) * | 1981-05-25 | 1988-08-05 | Nippon Kokan Kk | |
| JPS62103320A (en) * | 1985-10-30 | 1987-05-13 | Nippon Kokan Kk <Nkk> | Manufacture of high tension steel plate having superior uniformity in direction of thickness |
| WO2001071047A1 (en) * | 2000-03-22 | 2001-09-27 | Centre De Recherches Metallurgiques, Association Sans But Lucratif | Method for making a multiphase hot-rolled steel strip |
| BE1013359A3 (en) * | 2000-03-22 | 2001-12-04 | Centre Rech Metallurgique | Method for manufacturing a multi-band steel hot rolled. |
| US6821364B2 (en) | 2000-03-22 | 2004-11-23 | Centre De Recherches Metallurgiques A.S.B.L. | Method of making a multiphase hot-rolled steel strip |
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