JPS6421010A - Production of high-strength steel plate having excellent toughness - Google Patents
Production of high-strength steel plate having excellent toughnessInfo
- Publication number
- JPS6421010A JPS6421010A JP6060088A JP6060088A JPS6421010A JP S6421010 A JPS6421010 A JP S6421010A JP 6060088 A JP6060088 A JP 6060088A JP 6060088 A JP6060088 A JP 6060088A JP S6421010 A JPS6421010 A JP S6421010A
- Authority
- JP
- Japan
- Prior art keywords
- steel
- temp
- steel plate
- transformation
- rolling
- 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
- Metal Rolling (AREA)
Abstract
PURPOSE:To obtain a steel plate having excellent low-temp. toughness under high heat economy by casting steel specified in contents of Ti, Mn, S, etc., then subjecting the cast steel to controlled cooling in the state of coarse austenite grains or after rolling which obviates formation of the finer grains of the coarse austenite grains. CONSTITUTION:The steel consisting, by weight %, 0.05-0.20% C, 0.001-0.0250% S, 0.05-0.80% Si, 0.010-0.100% Al, 0.50-2.00% Mn, 0.0025-0.0100% Ni, 0.005-0.100% Ti, and further consisting of 0.0005-0.0060% B and the balance Fe and inevitable components is smelted. After this steel is cast and solidified, the steel is cooled in the state of the Ar3 point temp. without being rolled or after rolling at about <=1.5 reduction ratio in a recrystallization range while the temp. is at the Ar3 point or above. This cooling is executed continuously at 1.5-30 deg.C/sec cooling rate in the temp. range from at least the start of transformation of the fine Widmanstatten-like ferrite plate structure to the end of the transformation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6060088A JPS6421010A (en) | 1987-04-24 | 1988-03-16 | Production of high-strength steel plate having excellent toughness |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9968687 | 1987-04-24 | ||
| JP6060088A JPS6421010A (en) | 1987-04-24 | 1988-03-16 | Production of high-strength steel plate having excellent toughness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6421010A true JPS6421010A (en) | 1989-01-24 |
Family
ID=26401678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6060088A Pending JPS6421010A (en) | 1987-04-24 | 1988-03-16 | Production of high-strength steel plate having excellent toughness |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6421010A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0646656A1 (en) | 1993-04-26 | 1995-04-05 | Nippon Steel Corporation | Sheet steel excellent in flanging capability and process for producing the same |
| EP0949340A1 (en) | 1996-06-28 | 1999-10-13 | Nippon Steel Corporation | Steel having excellent outer surface scc resistance for pipeline |
| JP2011502785A (en) * | 2007-12-11 | 2011-01-27 | 武▲漢鋼鉄▼（集▲団▼）公司 | Method and system for producing wide strip steel by continuous casting and rolling of thin slabs |
-
1988
- 1988-03-16 JP JP6060088A patent/JPS6421010A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0646656A1 (en) | 1993-04-26 | 1995-04-05 | Nippon Steel Corporation | Sheet steel excellent in flanging capability and process for producing the same |
| EP0949340A1 (en) | 1996-06-28 | 1999-10-13 | Nippon Steel Corporation | Steel having excellent outer surface scc resistance for pipeline |
| JP2011502785A (en) * | 2007-12-11 | 2011-01-27 | 武▲漢鋼鉄▼（集▲団▼）公司 | Method and system for producing wide strip steel by continuous casting and rolling of thin slabs |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1082950A (en) | Dual-phase hot-rolled steel strip | |
| JPS5687626A (en) | Production of high strength low yield ratio high ductility composite structure steel plate of superior workability and high artificial age hardening characteristic after working | |
| KR100781839B1 (en) | Process for the production of grain oriented electrical steel strips | |
| CN108950405A (en) | A kind of 800MPa grade multi-phase Steels and production method with good flange performance | |
| JPS5478318A (en) | Manufacture of hot rolled, high tensile steel sheet with high ductility and low yield ratio | |
| JPS5534659A (en) | Manufacture of high tensile steel sheet with superior cold workability | |
| CN109023053A (en) | A kind of 600MPa grade multi-phase Steels and production method with good flange performance | |
| EP0181583A3 (en) | Method of making a dual-phase hot-rolled steel strip | |
| JPS6479345A (en) | High-strength hot rolled steel plate excellent in workability and its production | |
| JPH03180445A (en) | Hot rolled high strength steel sheet excellent in workability and spot weldability and its manufacture | |
| JPS6421010A (en) | Production of high-strength steel plate having excellent toughness | |
| JPS6425916A (en) | Manufacture of high-strength steel for electric resistance welded tube excellent in toughness at low temperature | |
| US4400223A (en) | Hot rolled steel product and method for producing same | |
| Inagaki | Formation of transformation textures in control-rolled low carbon steels | |
| JPS57134518A (en) | Production of high-toughness high-tensile steel | |
| JPS6425918A (en) | Manufacture of reinforcing steel bar excellent in toughness at low temperature | |
| JPS56166331A (en) | Manufacture of cold rolled steel plate with superior press workability | |
| JPS6455335A (en) | Production of high-tensile steel having low yield ratio | |
| JPS5457418A (en) | Manufacture of high toughness, refined steel | |
| JPS5635726A (en) | Production of mild cold steel plate for press by continuous annealing | |
| JPS57158320A (en) | Production of high tensile steel plate of good weldability | |
| JPS56119732A (en) | Manufacture of high-strength cold rolled steel plate with superior press formability | |
| RU2249628C1 (en) | Round-profiled rolled iron from low-carbon steel for cold die forging of high-strength especially high-profiled fastening members | |
| RU2249626C1 (en) | Round-profiled rolled iron from medium-carbon boron-containing steel for cold die forging of high-strength fastening members | |
| JPS57104650A (en) | High-strength hot-rolled steel plate and its manufacture |