JPS55100934A - Production of high tensile cold rolled steel plate excellent in drawing and shaping property - Google Patents
Production of high tensile cold rolled steel plate excellent in drawing and shaping propertyInfo
- Publication number
- JPS55100934A JPS55100934A JP849179A JP849179A JPS55100934A JP S55100934 A JPS55100934 A JP S55100934A JP 849179 A JP849179 A JP 849179A JP 849179 A JP849179 A JP 849179A JP S55100934 A JPS55100934 A JP S55100934A
- Authority
- JP
- Japan
- Prior art keywords
- steel plate
- less
- high tensile
- cooling
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
PURPOSE:To economically provide the title steel plate by a method wherein steel consisting of specific composition such as C, Si, etc. is hot- and cold-rolled, is box- annealed at a specified temperature, and after cooling, is subject to heating and cooling in a continuous annealing furnace having heating zone over 600 deg.C. CONSTITUTION:Steel used consists of C: 0.2% or less, Si: 1% or less, Mn: 0.8- 2.5%, sol Al: 0.01-0.2%, N: 0.0015-0.015%, P: 0.1% or less, and the remaining Fe. The steel, after hot-and cold-rolling, is subject to box-annealing at 650- 800 deg.C and is continuously annealed in a continuous annealing furnace having heating zone over 600 deg.C, in a heat pattern with temperature rise rate of about 20 deg.C/s, uniform heat of about 750 deg.C for 1min, and cooling at a rate of about 10 deg.C/s to room temperature. The process allows the use of less amount of added Mn, and proper addition of sol Al and N to provide high tensile steel plate having yield ratio of 0.6 and below and r value (Lankford value) of 1.2 and above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP849179A JPS5849624B2 (en) | 1979-01-27 | 1979-01-27 | Method for manufacturing high-strength cold-rolled steel sheets with excellent drawability and shapeability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP849179A JPS5849624B2 (en) | 1979-01-27 | 1979-01-27 | Method for manufacturing high-strength cold-rolled steel sheets with excellent drawability and shapeability |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55100934A true JPS55100934A (en) | 1980-08-01 |
| JPS5849624B2 JPS5849624B2 (en) | 1983-11-05 |
Family
ID=11694578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP849179A Expired JPS5849624B2 (en) | 1979-01-27 | 1979-01-27 | Method for manufacturing high-strength cold-rolled steel sheets with excellent drawability and shapeability |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5849624B2 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7442268B2 (en) | 2004-11-24 | 2008-10-28 | Nucor Corporation | Method of manufacturing cold rolled dual-phase steel sheet |
| US7534312B2 (en) * | 2001-08-24 | 2009-05-19 | Nippon Steel Corporation | Steel plate exhibiting excellent workability and method for producing the same |
| US7686896B2 (en) | 2003-09-26 | 2010-03-30 | Jfe Steel Corporation | High-strength steel sheet excellent in deep drawing characteristics and method for production thereof |
| US7959747B2 (en) | 2004-11-24 | 2011-06-14 | Nucor Corporation | Method of making cold rolled dual phase steel sheet |
| WO2011118421A1 (en) | 2010-03-26 | 2011-09-29 | Ｊｆｅスチール株式会社 | Method for producing high-strength steel plate having superior deep drawing characteristics |
| US8337643B2 (en) | 2004-11-24 | 2012-12-25 | Nucor Corporation | Hot rolled dual phase steel sheet |
| US8435363B2 (en) | 2007-10-10 | 2013-05-07 | Nucor Corporation | Complex metallographic structured high strength steel and manufacturing same |
| JP2019011508A (en) * | 2017-06-29 | 2019-01-24 | Ｊｆｅスチール株式会社 | Low-yield-ratio high strength steel sheet and method for producing the same |
| JP2019011507A (en) * | 2017-06-29 | 2019-01-24 | Ｊｆｅスチール株式会社 | High-yield-ratio high strength steel sheet and method for producing the same |
| US11155902B2 (en) | 2006-09-27 | 2021-10-26 | Nucor Corporation | High strength, hot dip coated, dual phase, steel sheet and method of manufacturing same |
-
1979
- 1979-01-27 JP JP849179A patent/JPS5849624B2/en not_active Expired
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7534312B2 (en) * | 2001-08-24 | 2009-05-19 | Nippon Steel Corporation | Steel plate exhibiting excellent workability and method for producing the same |
| US7776161B2 (en) * | 2001-08-24 | 2010-08-17 | Nippon Steel Corporation | Cold-rolled steel sheet excellent in workability |
| US7686896B2 (en) | 2003-09-26 | 2010-03-30 | Jfe Steel Corporation | High-strength steel sheet excellent in deep drawing characteristics and method for production thereof |
| US7442268B2 (en) | 2004-11-24 | 2008-10-28 | Nucor Corporation | Method of manufacturing cold rolled dual-phase steel sheet |
| US7879160B2 (en) | 2004-11-24 | 2011-02-01 | Nucor Corporation | Cold rolled dual-phase steel sheet |
| US7959747B2 (en) | 2004-11-24 | 2011-06-14 | Nucor Corporation | Method of making cold rolled dual phase steel sheet |
| US8337643B2 (en) | 2004-11-24 | 2012-12-25 | Nucor Corporation | Hot rolled dual phase steel sheet |
| US8366844B2 (en) | 2004-11-24 | 2013-02-05 | Nucor Corporation | Method of making hot rolled dual phase steel sheet |
| US11155902B2 (en) | 2006-09-27 | 2021-10-26 | Nucor Corporation | High strength, hot dip coated, dual phase, steel sheet and method of manufacturing same |
| US8435363B2 (en) | 2007-10-10 | 2013-05-07 | Nucor Corporation | Complex metallographic structured high strength steel and manufacturing same |
| US9157138B2 (en) | 2007-10-10 | 2015-10-13 | Nucor Corporation | Complex metallographic structured high strength steel and method of manufacturing |
| WO2011118421A1 (en) | 2010-03-26 | 2011-09-29 | Ｊｆｅスチール株式会社 | Method for producing high-strength steel plate having superior deep drawing characteristics |
| JP2019011508A (en) * | 2017-06-29 | 2019-01-24 | Ｊｆｅスチール株式会社 | Low-yield-ratio high strength steel sheet and method for producing the same |
| JP2019011507A (en) * | 2017-06-29 | 2019-01-24 | Ｊｆｅスチール株式会社 | High-yield-ratio high strength steel sheet and method for producing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5849624B2 (en) | 1983-11-05 |
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