JPS57123957A - High-strength cold-rolled steel plate and its manufacture - Google Patents
High-strength cold-rolled steel plate and its manufactureInfo
- Publication number
- JPS57123957A JPS57123957A JP1054081A JP1054081A JPS57123957A JP S57123957 A JPS57123957 A JP S57123957A JP 1054081 A JP1054081 A JP 1054081A JP 1054081 A JP1054081 A JP 1054081A JP S57123957 A JPS57123957 A JP S57123957A
- Authority
- JP
- Japan
- Prior art keywords
- steel plate
- steel
- manufacture
- strength cold
- rolled 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
Landscapes
- Heat Treatment Of Steel (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Abstract
PURPOSE: To obtain a high-strength cold-rolled steel plate with superior formability and baking hardenability by adding a specified amount each of C, Mn, Al and N to a steel and providing a ferrite structure contg. a specified amount of bainite.
CONSTITUTION: A steel having a chemical composition contg., by wt., 0.02W 0.15% C, 0.05W1% Mn, 0.01W0.08% Al and 0.002W0.01% N and a ferrite structure contg. 5W50% bainite and allowing ≤15% martensite content is cold-rolled, batchwise annealed, heated to a temp. of the Ac1 transformation point W the Ac3 transformation point at ≥5°C/sec average heating rate, held at the temp. for ≤5min, and quenched to ≤550°C at 20W500°C/sec average cooling rate to manufacture the desired steel plate. To said steel may be added ≥1 kind among 0.01W0.5% Si, 0.01W0.09% P, 0.0002W0.005% B and 0.01W0.5% V.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1054081A JPS57123957A (en) | 1981-01-26 | 1981-01-26 | High-strength cold-rolled steel plate and its manufacture |
US06/342,841 US4426235A (en) | 1981-01-26 | 1982-01-26 | Cold-rolled high strength steel plate with composite steel structure of high r-value and method for producing same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1054081A JPS57123957A (en) | 1981-01-26 | 1981-01-26 | High-strength cold-rolled steel plate and its manufacture |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57123957A true JPS57123957A (en) | 1982-08-02 |
JPS617453B2 JPS617453B2 (en) | 1986-03-06 |
Family
ID=11753084
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1054081A Granted JPS57123957A (en) | 1981-01-26 | 1981-01-26 | High-strength cold-rolled steel plate and its manufacture |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57123957A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60152655A (en) * | 1984-01-20 | 1985-08-10 | Kobe Steel Ltd | High-strength low-carbon steel material having superior heavy workability |
JPS60152654A (en) * | 1984-01-20 | 1985-08-10 | Kobe Steel Ltd | Steel material having superior resistance to hydrogen induced cracking, high strength, ductility and toughness and its manufacture |
JPS6156264A (en) * | 1984-08-24 | 1986-03-20 | Kobe Steel Ltd | High strength and high ductility ultrathin steel wire |
JPS6250436A (en) * | 1985-08-29 | 1987-03-05 | Kobe Steel Ltd | Low carbon steel wire superior in cold wire drawability |
US7169243B2 (en) * | 1999-07-01 | 2007-01-30 | Sollac | Aluminum-killed medium-carbon steel sheet for containers and process for its preparation |
JP2013064172A (en) * | 2011-09-16 | 2013-04-11 | Jfe Steel Corp | Cold rolled high tensile strength steel sheet excellent in resistance to surface distortion, bake hardenability, and stretch flange formability, and method for producing the same |
-
1981
- 1981-01-26 JP JP1054081A patent/JPS57123957A/en active Granted
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60152655A (en) * | 1984-01-20 | 1985-08-10 | Kobe Steel Ltd | High-strength low-carbon steel material having superior heavy workability |
JPS60152654A (en) * | 1984-01-20 | 1985-08-10 | Kobe Steel Ltd | Steel material having superior resistance to hydrogen induced cracking, high strength, ductility and toughness and its manufacture |
JPH048485B2 (en) * | 1984-01-20 | 1992-02-17 | ||
JPH0525941B2 (en) * | 1984-01-20 | 1993-04-14 | Kobe Steel Ltd | |
JPS6156264A (en) * | 1984-08-24 | 1986-03-20 | Kobe Steel Ltd | High strength and high ductility ultrathin steel wire |
JPS6250436A (en) * | 1985-08-29 | 1987-03-05 | Kobe Steel Ltd | Low carbon steel wire superior in cold wire drawability |
US7169243B2 (en) * | 1999-07-01 | 2007-01-30 | Sollac | Aluminum-killed medium-carbon steel sheet for containers and process for its preparation |
JP2013064172A (en) * | 2011-09-16 | 2013-04-11 | Jfe Steel Corp | Cold rolled high tensile strength steel sheet excellent in resistance to surface distortion, bake hardenability, and stretch flange formability, and method for producing the same |
Also Published As
Publication number | Publication date |
---|---|
JPS617453B2 (en) | 1986-03-06 |
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