JPS54128464A - Preventing method for transverse crack of continuously cast billet of ferrite stainless steel - Google Patents

Preventing method for transverse crack of continuously cast billet of ferrite stainless steel

Info

Publication number
JPS54128464A
JPS54128464A JP3600578A JP3600578A JPS54128464A JP S54128464 A JPS54128464 A JP S54128464A JP 3600578 A JP3600578 A JP 3600578A JP 3600578 A JP3600578 A JP 3600578A JP S54128464 A JPS54128464 A JP S54128464A
Authority
JP
Japan
Prior art keywords
billet
stainless steel
ferrite stainless
transverse crack
continuously cast
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
JP3600578A
Other languages
Japanese (ja)
Inventor
Kazuyuki Hasebe
Tatsu Kishida
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 JP3600578A priority Critical patent/JPS54128464A/en
Publication of JPS54128464A publication Critical patent/JPS54128464A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
    • B21B3/02—Rolling special iron alloys, e.g. stainless steel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/02—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Metal Rolling (AREA)
  • Continuous Casting (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

PURPOSE:To make small the stress due to cooling, and to prevent the generation of transverse crack in the cast billet, by hot rolling the billet of ferrite stainless steel of a special kind, without cooling the billet surface to under 150 deg.C. CONSTITUTION:In case of hot rolling of the continuously cast billet of a ferrite stainless steel containing one kind or more than two of Mo, Zr and Nb, the hot billet, being cooled so as not to make under 150 deg.C the surface temperature of the billet, is charged into the heating furnace, and is hot rolled by the conventional method; hereby, the stress generated in the billet while cooling period becomes smaller than the tensile strength of this material, so that the generation of transverse crack, usual in the conventional method, is prevented.
JP3600578A 1978-03-30 1978-03-30 Preventing method for transverse crack of continuously cast billet of ferrite stainless steel Pending JPS54128464A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3600578A JPS54128464A (en) 1978-03-30 1978-03-30 Preventing method for transverse crack of continuously cast billet of ferrite stainless steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3600578A JPS54128464A (en) 1978-03-30 1978-03-30 Preventing method for transverse crack of continuously cast billet of ferrite stainless steel

Publications (1)

Publication Number Publication Date
JPS54128464A true JPS54128464A (en) 1979-10-05

Family

ID=12457647

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3600578A Pending JPS54128464A (en) 1978-03-30 1978-03-30 Preventing method for transverse crack of continuously cast billet of ferrite stainless steel

Country Status (1)

Country Link
JP (1) JPS54128464A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57152420A (en) * 1981-03-17 1982-09-20 Nippon Steel Corp Production of ferritic stainless steel sheet of superior workability with less stages
JPS5839732A (en) * 1981-08-31 1983-03-08 Sumitomo Metal Ind Ltd Manufacture of ferrite stainless steel plate with superior rust resistance and oxidation resistance
JPH03138315A (en) * 1989-10-23 1991-06-12 Sumitomo Metal Ind Ltd Heat treatment for ferritic stainless steel

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS475404A (en) * 1970-09-02 1972-03-18

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS475404A (en) * 1970-09-02 1972-03-18

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57152420A (en) * 1981-03-17 1982-09-20 Nippon Steel Corp Production of ferritic stainless steel sheet of superior workability with less stages
JPS6151612B2 (en) * 1981-03-17 1986-11-10 Nippon Steel Corp
JPS5839732A (en) * 1981-08-31 1983-03-08 Sumitomo Metal Ind Ltd Manufacture of ferrite stainless steel plate with superior rust resistance and oxidation resistance
JPS6144121B2 (en) * 1981-08-31 1986-10-01 Sumitomo Metal Ind
JPH03138315A (en) * 1989-10-23 1991-06-12 Sumitomo Metal Ind Ltd Heat treatment for ferritic stainless steel

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