JPS6439323A - Working method for high-temperature high-cr ferrite steel - Google Patents

Working method for high-temperature high-cr ferrite steel

Info

Publication number
JPS6439323A
JPS6439323A JP19697787A JP19697787A JPS6439323A JP S6439323 A JPS6439323 A JP S6439323A JP 19697787 A JP19697787 A JP 19697787A JP 19697787 A JP19697787 A JP 19697787A JP S6439323 A JPS6439323 A JP S6439323A
Authority
JP
Japan
Prior art keywords
steel
working
hot
ferrite
ferrite steel
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
Application number
JP19697787A
Other languages
Japanese (ja)
Inventor
Atsuro Iseda
Kunihiko Yoshikawa
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.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries Ltd
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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP19697787A priority Critical patent/JPS6439323A/en
Publication of JPS6439323A publication Critical patent/JPS6439323A/en
Pending 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
    • 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 contrive the rationization of working stages, the reduction of cost and the improvement of characteristics by subjecting a high-Cr ferrite steel which contains specific compsn. ratios of C and Cr and is added with a specific ratio of Mo or W to specific hot working then to rapid cooling and tempering treatment. CONSTITUTION:The high-Cr ferrite steel which contains 0.03-0.3wt.% C, 5-13% Cr, and is further added with 0.1-3% total of 1 or 2 kinds of Mo and W which are solid-soln. strengthening elements is subjected to the hot working. The steel is heated to and held for >=1min at 900-1,300 deg.C and is hot worked in the final hot working. The carbonitride in the stock is thereby solutionized and the alloy components are uniformized, by which a normalizing treatment is omitted. The hot worked steel is quickly cooled at >=500 deg.C/h to convert the structure to martensite. The steel is thereafter subjected to a tempering treatment at the AC1 point or below to stabilize the structure. The steel is finished at need by warm working at the AC1 point or below. The working of the high-Cr ferrite steel having the excellent creep strength and high-temp. characteristics is thereby executed without the normalizing treatment.
JP19697787A 1987-08-06 1987-08-06 Working method for high-temperature high-cr ferrite steel Pending JPS6439323A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19697787A JPS6439323A (en) 1987-08-06 1987-08-06 Working method for high-temperature high-cr ferrite steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19697787A JPS6439323A (en) 1987-08-06 1987-08-06 Working method for high-temperature high-cr ferrite steel

Publications (1)

Publication Number Publication Date
JPS6439323A true JPS6439323A (en) 1989-02-09

Family

ID=16366786

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19697787A Pending JPS6439323A (en) 1987-08-06 1987-08-06 Working method for high-temperature high-cr ferrite steel

Country Status (1)

Country Link
JP (1) JPS6439323A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0469211A (en) * 1990-07-10 1992-03-04 O M Ltd Cooler of strand
JPH0469209A (en) * 1990-07-10 1992-03-04 O M Ltd Method and equipment for cooling strand
US5857391A (en) * 1992-03-02 1999-01-12 Ndc Netzler & Dahlgren Co. Ab Device for cutting a protective layer away from a material roll
US5863564A (en) * 1997-05-08 1999-01-26 Han Jin Ind. Co., Ltd. Molten resin strand feeding device with strand cutting means
US6282867B1 (en) * 1997-03-14 2001-09-04 Focke & Co. (Gmbh & Co.) Method and apparatus for handling reels
CN109415776A (en) * 2016-04-22 2019-03-01 安普朗公司 A kind of technique for by sheet material manufacture martensitic stain less steel component

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0469211A (en) * 1990-07-10 1992-03-04 O M Ltd Cooler of strand
JPH0469209A (en) * 1990-07-10 1992-03-04 O M Ltd Method and equipment for cooling strand
US5857391A (en) * 1992-03-02 1999-01-12 Ndc Netzler & Dahlgren Co. Ab Device for cutting a protective layer away from a material roll
US6282867B1 (en) * 1997-03-14 2001-09-04 Focke & Co. (Gmbh & Co.) Method and apparatus for handling reels
US5863564A (en) * 1997-05-08 1999-01-26 Han Jin Ind. Co., Ltd. Molten resin strand feeding device with strand cutting means
CN109415776A (en) * 2016-04-22 2019-03-01 安普朗公司 A kind of technique for by sheet material manufacture martensitic stain less steel component

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