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 steel

Info

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
Application number
JP15781980A
Other languages
Japanese (ja)
Other versions
JPS6125770B2 (en
Inventor
Noboru Kinoshita
Keiichi Yoshioka
Hiroshi Ono
Nobuo Ohashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Steel Corp
Original Assignee
Kawasaki Steel Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP15781980A priority Critical patent/JPS5782421A/en
Publication of JPS5782421A publication Critical patent/JPS5782421A/en
Publication of JPS6125770B2 publication Critical patent/JPS6125770B2/ja
Granted legal-status Critical Current

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
JP15781980A 1980-11-10 1980-11-10 Bright annealing method of mo-containing middle cr concentration ferritic stainless steel Granted JPS5782421A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH029077U (en) * 1988-07-01 1990-01-22

Cited By (4)

* Cited by examiner, † Cited by third party
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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