JPS54104424A - Heat treating method for high chromium ferritic stainless steel - Google Patents

Heat treating method for high chromium ferritic stainless steel

Info

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
Application number
JP1220178A
Other languages
Japanese (ja)
Other versions
JPS6125769B2 (en
Inventor
Shigeo Tsuchida
Toshio Morimura
Yoichi Hirose
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.)
Resonac Holdings Corp
Original Assignee
Showa Denko KK
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 Showa Denko KK filed Critical Showa Denko KK
Priority to JP1220178A priority Critical patent/JPS54104424A/en
Publication of JPS54104424A publication Critical patent/JPS54104424A/en
Publication of JPS6125769B2 publication Critical patent/JPS6125769B2/ja
Granted legal-status Critical Current

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.
JP1220178A 1978-02-06 1978-02-06 Heat treating method for high chromium ferritic stainless steel Granted JPS54104424A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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