JPS57108241A - High strength steel plate with superior formability, especially strength flanging property - Google Patents
High strength steel plate with superior formability, especially strength flanging propertyInfo
- Publication number
- JPS57108241A JPS57108241A JP18451380A JP18451380A JPS57108241A JP S57108241 A JPS57108241 A JP S57108241A JP 18451380 A JP18451380 A JP 18451380A JP 18451380 A JP18451380 A JP 18451380A JP S57108241 A JPS57108241 A JP S57108241A
- Authority
- JP
- Japan
- Prior art keywords
- steel plate
- high strength
- superior
- martensite
- bainite
- 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
- 229910000831 Steel Inorganic materials 0.000 title abstract 6
- 239000010959 steel Substances 0.000 title abstract 6
- 229910001563 bainite Inorganic materials 0.000 abstract 3
- 229910000734 martensite Inorganic materials 0.000 abstract 3
- 229910000859 α-Fe Inorganic materials 0.000 abstract 3
- 239000000463 material Substances 0.000 abstract 1
Landscapes
- Heat Treatment Of Sheet Steel (AREA)
Abstract
PURPOSE: To provide the titled high strength steel plate suitable for use as a material for a car wheel disk, etc., contg. a prescribed percentage each of C, Si, Mn and S, and having a structure consisting of a prescribed areal percentage each of ferrite, bainite and martensite.
CONSTITUTION: This high strength steel plate contains 0.02W0.15% C, 0.85W1.8% Si, 0.3W1.2% Mn and ≤0.015% S while satisfying Si%/Mn%≥1, and it has a 3-phase structure consisting of 5W70% by area of bainite, 1W30% by area of martensite and the balance ferrite. This steel plate is provided with only the advantages of ferrite+martensite steel and bainite steel, so it has a low yield ratio, superior strength-elongation balance, a superior stretch flanging property and superior fatigue strength.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18451380A JPS57108241A (en) | 1980-12-24 | 1980-12-24 | High strength steel plate with superior formability, especially strength flanging property |
| CA000388173A CA1195152A (en) | 1980-10-17 | 1981-10-16 | High strength steel plate and method for manufacturing same |
| FR8119609A FR2495189A1 (en) | 1980-10-17 | 1981-10-19 | High strength three-phase steel sheet - contg. polygonal ferrite, bainite and martensite, formed by hot rolling and controlled cooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18451380A JPS57108241A (en) | 1980-12-24 | 1980-12-24 | High strength steel plate with superior formability, especially strength flanging property |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57108241A true JPS57108241A (en) | 1982-07-06 |
Family
ID=16154504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18451380A Pending JPS57108241A (en) | 1980-10-17 | 1980-12-24 | High strength steel plate with superior formability, especially strength flanging property |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57108241A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61257458A (en) * | 1985-05-07 | 1986-11-14 | Kobe Steel Ltd | Steel sheet for laser processing having superior suitability to stretch flanging |
| JPS61261462A (en) * | 1985-05-13 | 1986-11-19 | Kobe Steel Ltd | Steel sheet for laser beam machining excelling in stretch flanging workability |
| JPH07150291A (en) * | 1993-12-01 | 1995-06-13 | Kobe Steel Ltd | High strength hot rolled steel sheet for working excellent in fatigue property |
| US5454883A (en) * | 1993-02-02 | 1995-10-03 | Nippon Steel Corporation | High toughness low yield ratio, high fatigue strength steel plate and process of producing same |
| CN110088331A (en) * | 2016-12-19 | 2019-08-02 | Posco公司 | The electric-resistance-welded steel pipe hot rolled steel plate and its manufacturing method of welding property excellent |
-
1980
- 1980-12-24 JP JP18451380A patent/JPS57108241A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61257458A (en) * | 1985-05-07 | 1986-11-14 | Kobe Steel Ltd | Steel sheet for laser processing having superior suitability to stretch flanging |
| JPS61261462A (en) * | 1985-05-13 | 1986-11-19 | Kobe Steel Ltd | Steel sheet for laser beam machining excelling in stretch flanging workability |
| US5454883A (en) * | 1993-02-02 | 1995-10-03 | Nippon Steel Corporation | High toughness low yield ratio, high fatigue strength steel plate and process of producing same |
| JPH07150291A (en) * | 1993-12-01 | 1995-06-13 | Kobe Steel Ltd | High strength hot rolled steel sheet for working excellent in fatigue property |
| CN110088331A (en) * | 2016-12-19 | 2019-08-02 | Posco公司 | The electric-resistance-welded steel pipe hot rolled steel plate and its manufacturing method of welding property excellent |
| CN110088331B (en) * | 2016-12-19 | 2021-03-23 | Posco公司 | Hot-rolled steel sheet for electric resistance welded steel pipe having excellent weldability and method for producing same |
| US11535907B2 (en) | 2016-12-19 | 2022-12-27 | Posco Co., Ltd | Hot rolled steel plate for electric resistance welded steel pipe having excellent weldability, and manufacturing method thereof |
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