JPS5623225A - Production of weldable extra-thick high-tensile steel plate of superior ductility in thickness direction - Google Patents
Production of weldable extra-thick high-tensile steel plate of superior ductility in thickness directionInfo
- Publication number
- JPS5623225A JPS5623225A JP15884479A JP15884479A JPS5623225A JP S5623225 A JPS5623225 A JP S5623225A JP 15884479 A JP15884479 A JP 15884479A JP 15884479 A JP15884479 A JP 15884479A JP S5623225 A JPS5623225 A JP S5623225A
- Authority
- JP
- Japan
- Prior art keywords
- steel plate
- thickness direction
- weldable
- extra
- 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.)
- 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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
Abstract
PURPOSE:To produce a weldable extra-thick high-tensile steel plate of superior ductility in the thickness direction by keeping the S content in the steel material low and controlling the contents of Mn and Cr in a proper range as well as by subjecting the same to hot rolling and refining under the specific conditions. CONSTITUTION:The steel material 1.00-1.90% Mn+Cr and 0.40-0.48 carbon equiv. contg. 0.10-0.18% C, 0.20-0.70% Si, 0.20-0.45% Mn, >0.020% P, <=0.015% S, 0.70-1.50% Cr, 0.05-0.50% Mo, 0.01-0.10% V, 0.010-0.10% sol. Al, and if necessary, contg. one or both of 0.10-0.80% Ni and 0.10-0.50% Cu, is heated to >=1200 deg.C. It is hot rolled at a finishing temp. of >=1050 deg.C, to an extrathick steel plate of >=40mm. in thickness. After this is hardened from a temp. >=Ac3 point, it is annealed at a temperature <=Ac1. It is a high-tensile steel plate of 60kg/mm.<2> class and the steel plate of superior ductility in the thickness direction and less formation of white spots may be produced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15884479A JPS5623225A (en) | 1979-12-06 | 1979-12-06 | Production of weldable extra-thick high-tensile steel plate of superior ductility in thickness direction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15884479A JPS5623225A (en) | 1979-12-06 | 1979-12-06 | Production of weldable extra-thick high-tensile steel plate of superior ductility in thickness direction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5623225A true JPS5623225A (en) | 1981-03-05 |
| JPS5740892B2 JPS5740892B2 (en) | 1982-08-31 |
Family
ID=15680634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15884479A Granted JPS5623225A (en) | 1979-12-06 | 1979-12-06 | Production of weldable extra-thick high-tensile steel plate of superior ductility in thickness direction |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5623225A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0518637U (en) * | 1991-08-05 | 1993-03-09 | 株式会社品川工業所 | Heating stirring device |
| JP4920174B2 (en) * | 2001-12-20 | 2012-04-18 | ティーアールダブリュー・リミテッド | Improvement of tandem master cylinder for hydraulic system |
| CN104630649A (en) * | 2015-02-12 | 2015-05-20 | 上海闵轩钢结构工程有限公司 | Low-alloy, heat-resistant and high-strength steel and member thereof |
| CN110551948A (en) * | 2019-10-22 | 2019-12-10 | 河北工程大学 | Low-carbon steel and preparation method thereof |
-
1979
- 1979-12-06 JP JP15884479A patent/JPS5623225A/en active Granted
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0518637U (en) * | 1991-08-05 | 1993-03-09 | 株式会社品川工業所 | Heating stirring device |
| JP4920174B2 (en) * | 2001-12-20 | 2012-04-18 | ティーアールダブリュー・リミテッド | Improvement of tandem master cylinder for hydraulic system |
| CN104630649A (en) * | 2015-02-12 | 2015-05-20 | 上海闵轩钢结构工程有限公司 | Low-alloy, heat-resistant and high-strength steel and member thereof |
| CN110551948A (en) * | 2019-10-22 | 2019-12-10 | 河北工程大学 | Low-carbon steel and preparation method thereof |
| CN110551948B (en) * | 2019-10-22 | 2021-05-04 | 河北工程大学 | Low-carbon steel and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5740892B2 (en) | 1982-08-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| SE7407267L (en) | ||
| JPS55131125A (en) | Production of unmodified high-strength high-toughness steel | |
| JPS5651532A (en) | Production of high-strength zinc hot dipped steel plate of superior workability | |
| US3897279A (en) | Method for the production of high strength notch tough steel | |
| JPS5623225A (en) | Production of weldable extra-thick high-tensile steel plate of superior ductility in thickness direction | |
| ATE74042T1 (en) | PROCESS FOR PRODUCTION OF CLAD STEEL SHEET. | |
| TW370567B (en) | Bake hardenable vanadium containing steel effect amount of vanadium in low carbon steels capable of producing an improved bake hardenable product | |
| DE3689781D1 (en) | Process for producing an aging-resistant steel strip with high cold formability. | |
| JPS6431928A (en) | Manufacture of wear-resistant steel stock by direct hardening | |
| JPS6425916A (en) | Manufacture of high-strength steel for electric resistance welded tube excellent in toughness at low temperature | |
| JPS5442326A (en) | Production of high-ductile, high-tensile normalized steel plate having decreased rolling anisotropy | |
| JPS55107727A (en) | Production of tough bar steel material of less anisotropy | |
| JPS57158320A (en) | Production of high tensile steel plate of good weldability | |
| JPS6456822A (en) | Production for improving toughness of hot-rolled high-al ferritic band stainless steel | |
| JPS5454915A (en) | Production of high-tensile steel plate having good cold toughness and weldability | |
| JPS6462415A (en) | Production of high-tensile unequal-sided unequal thickness steel shape | |
| JPS57192225A (en) | Production of drawable cold-rolled steel sheet having baking-hardenability | |
| Hulka et al. | Role and Implication of Niobium in as-forged Steels | |
| JPS55104427A (en) | Production of steel for low temperature | |
| JPS55134126A (en) | Production of high-strength cold rolled steel plate of superior press formability | |
| JPS5677333A (en) | Production of composite structure type high ductility high strength cold-rolled steel plate | |
| JPS6442525A (en) | Production of machining parts by warm forging | |
| JPS56166328A (en) | Manufacture of high-tensile cold-rolled steel plate with heat hardenability for deep drawing | |
| JPS6425921A (en) | Manufacture of cold-rolled steel sheet combining high ductility with high strength | |
| JPS56102519A (en) | Cold rolling method for stainless steel of high strength |