JPS57152420A - Production of ferritic stainless steel sheet of superior workability with less stages - Google Patents

Production of ferritic stainless steel sheet of superior workability with less stages

Info

Publication number
JPS57152420A
JPS57152420A JP3722281A JP3722281A JPS57152420A JP S57152420 A JPS57152420 A JP S57152420A JP 3722281 A JP3722281 A JP 3722281A JP 3722281 A JP3722281 A JP 3722281A JP S57152420 A JPS57152420 A JP S57152420A
Authority
JP
Japan
Prior art keywords
hot
time
gamma
alpha
stainless 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.)
Granted
Application number
JP3722281A
Other languages
Japanese (ja)
Other versions
JPS6151612B2 (en
Inventor
Masanori Ueda
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
Nippon 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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP3722281A priority Critical patent/JPS57152420A/en
Publication of JPS57152420A publication Critical patent/JPS57152420A/en
Publication of JPS6151612B2 publication Critical patent/JPS6151612B2/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
    • 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)
  • Materials Engineering (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Metal Rolling (AREA)
  • Continuous Casting (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Sheet Steel (AREA)

Abstract

PURPOSE:To produce a stailness steel sheet of superior workability with less stages and less energy processes by heat insulating or heating a continuously cast slab of a stainless steel of a specific amt. of Cr directly under specific conditions without cooling and hot rolling the same. CONSTITUTION:After ferritic stainles steel contg. 10-20wt% Cr is cast continuously, it is directly hot-rolled or it is heat-insulated or heated without reducing temp. down to <=400 deg.C and is hot-rolled. At this time, the time when the continuously cast slab is put in an (alpha+gamma) region is kept within 3hr. Here, the amt. of Cr is affected by the amts. of C and N, and is within the range where the (alpha+gamma) region appears at high temp. If the slab is cooled to <=400 deg.C in the stage of heat insulation or hot rolling after the heating, the effect of energy economization is decreased. In either process, if the time heated to the (alpha+gamma) region exceeds 3hr, there are no specific characteristics in terms of material quality despite the changing of the hot coil annealing conditions and the advantages of energy economization is decreased. The time for the hot coil annealing is reduced or omitted.
JP3722281A 1981-03-17 1981-03-17 Production of ferritic stainless steel sheet of superior workability with less stages Granted JPS57152420A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3722281A JPS57152420A (en) 1981-03-17 1981-03-17 Production of ferritic stainless steel sheet of superior workability with less stages

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3722281A JPS57152420A (en) 1981-03-17 1981-03-17 Production of ferritic stainless steel sheet of superior workability with less stages

Publications (2)

Publication Number Publication Date
JPS57152420A true JPS57152420A (en) 1982-09-20
JPS6151612B2 JPS6151612B2 (en) 1986-11-10

Family

ID=12491559

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3722281A Granted JPS57152420A (en) 1981-03-17 1981-03-17 Production of ferritic stainless steel sheet of superior workability with less stages

Country Status (1)

Country Link
JP (1) JPS57152420A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52806A (en) * 1975-02-20 1977-01-06 Dai Ichi Kogyo Seiyaku Co Ltd Preparation of ester
JPS5340625A (en) * 1976-09-28 1978-04-13 Nippon Steel Corp Production of ferritic stainless steel sheet
JPS5356143A (en) * 1976-11-02 1978-05-22 Nippon Steel Corp Cold rolled steel plate manufactring process by rolling directly sent from continuous casting stainless steel slab
JPS54128464A (en) * 1978-03-30 1979-10-05 Sumitomo Metal Ind Ltd Preventing method for transverse crack of continuously cast billet of ferrite stainless steel

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52806A (en) * 1975-02-20 1977-01-06 Dai Ichi Kogyo Seiyaku Co Ltd Preparation of ester
JPS5340625A (en) * 1976-09-28 1978-04-13 Nippon Steel Corp Production of ferritic stainless steel sheet
JPS5356143A (en) * 1976-11-02 1978-05-22 Nippon Steel Corp Cold rolled steel plate manufactring process by rolling directly sent from continuous casting stainless steel slab
JPS54128464A (en) * 1978-03-30 1979-10-05 Sumitomo Metal Ind Ltd Preventing method for transverse crack of continuously cast billet of ferrite stainless steel

Also Published As

Publication number Publication date
JPS6151612B2 (en) 1986-11-10

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