JPS6417819A - Production of high-strength high-mn nonmagnetic steel which is less softened in weld heat-affected zone - Google Patents
Production of high-strength high-mn nonmagnetic steel which is less softened in weld heat-affected zoneInfo
- Publication number
- JPS6417819A JPS6417819A JP17438787A JP17438787A JPS6417819A JP S6417819 A JPS6417819 A JP S6417819A JP 17438787 A JP17438787 A JP 17438787A JP 17438787 A JP17438787 A JP 17438787A JP S6417819 A JPS6417819 A JP S6417819A
- Authority
- JP
- Japan
- Prior art keywords
- steel
- affected zone
- weld heat
- nonmagnetic
- cooling
- 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
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
- C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
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 Steel (AREA)
Abstract
PURPOSE:To produce a nonmagnetic steel which has high strength and is less softened in weld heat-affected zone by subjecting a high-Mn steel added with a small amt. of Nb to hot rolling at a controlled heating temp. and rolling finish temp. and further controlling the accelerated cooling conditions after cooling. CONSTITUTION:A steel ingot or billet consisting, by wt.%, of 0.10-0.40% C, 0.05-2.50% Si, 18-30% Mn, 0.01-0.10% Nb, 0.005-0.200% N, and the balance Fe and unavoidable impurities is heated to >=1,000 deg.C and <=1,250 deg.C and is subjected to the hot rolling which is completed at >=800 deg.C. The rolled steel is then subjected to the accelerated cooling by water cooling at 1-50 deg.C/sec average cooling rate from 800 deg.C down to 500 deg.C. The high Mn nonmagnetic steel which is less softened in the weld heat-affected zone and has the high strength is thereby obtd. This steel is adequate for a nonmagnetic structural material to be used for nuclear fusion reactors and linear motor cars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17438787A JPS6417819A (en) | 1987-07-13 | 1987-07-13 | Production of high-strength high-mn nonmagnetic steel which is less softened in weld heat-affected zone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17438787A JPS6417819A (en) | 1987-07-13 | 1987-07-13 | Production of high-strength high-mn nonmagnetic steel which is less softened in weld heat-affected zone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6417819A true JPS6417819A (en) | 1989-01-20 |
Family
ID=15977719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17438787A Pending JPS6417819A (en) | 1987-07-13 | 1987-07-13 | Production of high-strength high-mn nonmagnetic steel which is less softened in weld heat-affected zone |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6417819A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0344415A (en) * | 1989-07-12 | 1991-02-26 | Kobe Steel Ltd | Production of high-mn nonmagnetic steel of high strength and high toughness having excellent drilling property |
| US5431753A (en) * | 1991-12-30 | 1995-07-11 | Pohang Iron & Steel Co. Ltd. | Manufacturing process for austenitic high manganese steel having superior formability, strengths and weldability |
| EP0777204A1 (en) | 1992-07-23 | 1997-06-04 | Toyota Jidosha Kabushiki Kaisha | Vehicle route guidance apparatus |
| WO2017213781A1 (en) * | 2016-06-06 | 2017-12-14 | Exxonmobil Research And Engineering Company | High strength cryogenic high manganese steels and methods of making the same |
-
1987
- 1987-07-13 JP JP17438787A patent/JPS6417819A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0344415A (en) * | 1989-07-12 | 1991-02-26 | Kobe Steel Ltd | Production of high-mn nonmagnetic steel of high strength and high toughness having excellent drilling property |
| US5431753A (en) * | 1991-12-30 | 1995-07-11 | Pohang Iron & Steel Co. Ltd. | Manufacturing process for austenitic high manganese steel having superior formability, strengths and weldability |
| EP0777204A1 (en) | 1992-07-23 | 1997-06-04 | Toyota Jidosha Kabushiki Kaisha | Vehicle route guidance apparatus |
| WO2017213781A1 (en) * | 2016-06-06 | 2017-12-14 | Exxonmobil Research And Engineering Company | High strength cryogenic high manganese steels and methods of making the same |
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