JPS54104424A - Heat treating method for high chromium ferritic stainless steel - Google Patents
Heat treating method for high chromium ferritic stainless steelInfo
- Publication number
- JPS54104424A JPS54104424A JP1220178A JP1220178A JPS54104424A JP S54104424 A JPS54104424 A JP S54104424A JP 1220178 A JP1220178 A JP 1220178A JP 1220178 A JP1220178 A JP 1220178A JP S54104424 A JPS54104424 A JP S54104424A
- Authority
- JP
- Japan
- Prior art keywords
- stainless steel
- ferritic stainless
- billet
- heat treating
- bloom
- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/002—Heat treatment of ferrous alloys containing Cr
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 prevent occurence of hair cracks on a bloom, billet, etc. of a high Cr ferritic stainless steel by heat treating the bloom or billet. CONSTITUTION:An ingot of a high Cr ferritic stainless steel contg. Cr; 25-35 wt% and Mo; 0.5-5wt% is hot worked to obtain a billet, bloom, etc. The billet or bllom is soaked at 900-1200 deg.C for 5-60 min to relieve thermal stress formed by the hot working, and it is slowly cooled to 550-650 deg.C at a cooling rate of 3-0.1 deg.C/min and rapidly cooled to 425 deg.C at a cooling rate above 5 deg.C/min to prevent appearance of brittleness at 475 deg.C and to perfectly prevent occurence of hair cracks.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1220178A JPS54104424A (en) | 1978-02-06 | 1978-02-06 | Heat treating method for high chromium ferritic stainless steel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1220178A JPS54104424A (en) | 1978-02-06 | 1978-02-06 | Heat treating method for high chromium ferritic stainless steel |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54104424A true JPS54104424A (en) | 1979-08-16 |
JPS6125769B2 JPS6125769B2 (en) | 1986-06-17 |
Family
ID=11798782
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1220178A Granted JPS54104424A (en) | 1978-02-06 | 1978-02-06 | Heat treating method for high chromium ferritic stainless steel |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54104424A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03138315A (en) * | 1989-10-23 | 1991-06-12 | Sumitomo Metal Ind Ltd | Heat treatment for ferritic stainless steel |
CN114086087A (en) * | 2021-11-29 | 2022-02-25 | 中北大学 | Method for treating embrittled high-chromium ferritic stainless steel plate |
-
1978
- 1978-02-06 JP JP1220178A patent/JPS54104424A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03138315A (en) * | 1989-10-23 | 1991-06-12 | Sumitomo Metal Ind Ltd | Heat treatment for ferritic stainless steel |
CN114086087A (en) * | 2021-11-29 | 2022-02-25 | 中北大学 | Method for treating embrittled high-chromium ferritic stainless steel plate |
CN114086087B (en) * | 2021-11-29 | 2022-07-26 | 中北大学 | Method for treating embrittled high-chromium ferritic stainless steel plate |
Also Published As
Publication number | Publication date |
---|---|
JPS6125769B2 (en) | 1986-06-17 |
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