JPS5782421A - Bright annealing method of mo-containing middle cr concentration ferritic stainless steel - Google Patents
Bright annealing method of mo-containing middle cr concentration ferritic stainless steelInfo
- Publication number
- JPS5782421A JPS5782421A JP15781980A JP15781980A JPS5782421A JP S5782421 A JPS5782421 A JP S5782421A JP 15781980 A JP15781980 A JP 15781980A JP 15781980 A JP15781980 A JP 15781980A JP S5782421 A JPS5782421 A JP S5782421A
- Authority
- JP
- Japan
- Prior art keywords
- annealing
- atmosphere
- points
- temps
- dew points
- 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
Landscapes
- Heat Treatment Of Sheet Steel (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
PURPOSE: To perform annealing without degrading rust resistance, particularly rust resistance in a low concn. gaseous SO2 atmosphere by specifying the relations between the dew points of the atmosphere and annealing temps., at the bright annealing in an atmosphere contg. mixed gases of H2 and N2.
CONSTITUTION: Ferrite stainless steel of 16.0W23.0wt% Cr and 0.75W2.0wt% Mo is subjected to bright annealing in an atmosphere contg. mixed gases of H2 and N2. The annealing is accomplished at the dew points and annealing temps. within the region of the lines or on the lines connecting successively the points AWE in the orthogonal coordinates wherein the dew points of such annealing atmosphere and annealing temps. are respective axes of coordinaes. Here, the dew points and annealing temps. of the points AWE are A: (-68, 910), B: (-61, 830), C: (-56, 900), D: (-56, 1,000), E: (-68, 1,000), in °C. Here, the lines A-B, B-C, C-D are empirically determined, and the D-E is determined to prevent the decrease in mechanical strength and E-A is determined because it is industrially difficult to lower dew points below this.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15781980A JPS5782421A (en) | 1980-11-10 | 1980-11-10 | Bright annealing method of mo-containing middle cr concentration ferritic stainless steel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15781980A JPS5782421A (en) | 1980-11-10 | 1980-11-10 | Bright annealing method of mo-containing middle cr concentration ferritic stainless steel |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5782421A true JPS5782421A (en) | 1982-05-22 |
JPS6125770B2 JPS6125770B2 (en) | 1986-06-17 |
Family
ID=15657991
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15781980A Granted JPS5782421A (en) | 1980-11-10 | 1980-11-10 | Bright annealing method of mo-containing middle cr concentration ferritic stainless steel |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5782421A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63157886A (en) * | 1986-12-19 | 1988-06-30 | Kawasaki Steel Corp | Improvement of rust resistance of bright-annealed ferritic stainless steel |
JPS63235461A (en) * | 1987-03-23 | 1988-09-30 | Nisshin Steel Co Ltd | Manufacture of ba-finished stainless steel plate excellent in weatherability |
JPH0417615A (en) * | 1990-05-10 | 1992-01-22 | Nippon Steel Corp | Production of stainless steel sheet having excellent corrosion resistance and working moldability |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH029077U (en) * | 1988-07-01 | 1990-01-22 |
-
1980
- 1980-11-10 JP JP15781980A patent/JPS5782421A/en active Granted
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63157886A (en) * | 1986-12-19 | 1988-06-30 | Kawasaki Steel Corp | Improvement of rust resistance of bright-annealed ferritic stainless steel |
JPS63235461A (en) * | 1987-03-23 | 1988-09-30 | Nisshin Steel Co Ltd | Manufacture of ba-finished stainless steel plate excellent in weatherability |
JPH0240731B2 (en) * | 1987-03-23 | 1990-09-13 | Nisshin Steel Co Ltd | |
JPH0417615A (en) * | 1990-05-10 | 1992-01-22 | Nippon Steel Corp | Production of stainless steel sheet having excellent corrosion resistance and working moldability |
Also Published As
Publication number | Publication date |
---|---|
JPS6125770B2 (en) | 1986-06-17 |
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