CA2525147A1 - Fe-cr alloy billet and method for production thereof - Google Patents

Fe-cr alloy billet and method for production thereof Download PDF

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Publication number
CA2525147A1
CA2525147A1 CA002525147A CA2525147A CA2525147A1 CA 2525147 A1 CA2525147 A1 CA 2525147A1 CA 002525147 A CA002525147 A CA 002525147A CA 2525147 A CA2525147 A CA 2525147A CA 2525147 A1 CA2525147 A1 CA 2525147A1
Authority
CA
Canada
Prior art keywords
alloy
manufacturing
billet
steel pipes
seamless 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
CA002525147A
Other languages
French (fr)
Other versions
CA2525147C (en
Inventor
Yasuyoshi Hidaka
Toshiro Anraku
Tomio Yamakawa
Yasufumi Kitamura
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
Individual
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 Individual filed Critical Individual
Publication of CA2525147A1 publication Critical patent/CA2525147A1/en
Application granted granted Critical
Publication of CA2525147C publication Critical patent/CA2525147C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • 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
    • B21B1/026—Rolling
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • 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
    • B21B2001/022—Blooms or billets
    • 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
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B9/00—Measures for carrying out rolling operations under special conditions, e.g. in vacuum or inert atmosphere to prevent oxidation of work; Special measures for removing fumes from rolling mills

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Metal Rolling (AREA)
  • Heat Treatment Of Steel (AREA)
  • Metal Extraction Processes (AREA)
  • Forging (AREA)

Abstract

Fe-Cr alloy billet manufacturing method according to the present invention, since the blooming is carried out with the high reduction rate surface of the cast steel covered with a scale layer of a large area rate as 70 %
or more and without the descaling applied, can reduce the indentation and inclusion of the scale. Thereby, in the case of a billet for use in seamless steel pipes being manufactured from a steel strip of a Fe-Cr alloy, surface treatment before tube-making can be largely reduced. Thereby, when the Fe-Cr alloy billet is adopted in manufacturing seamless steel pipes, since even the Fe-Cr alloy steel pipe relatively hard to process can be manufactured at low manufacturing cost and efficiently, it can be widely applied in a field of manufacturing hot seamless steel pipes.
CA002525147A 2003-05-22 2004-05-20 Fe-cr alloy billet and method for production thereof Expired - Fee Related CA2525147C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2003-144557 2003-05-22
JP2003144557 2003-05-22
PCT/JP2004/007223 WO2004103589A1 (en) 2003-05-22 2004-05-20 Fe-Cr ALLY BILLET AND METHOD FOR PRODUCTION THEREOF

Publications (2)

Publication Number Publication Date
CA2525147A1 true CA2525147A1 (en) 2004-12-02
CA2525147C CA2525147C (en) 2009-08-18

Family

ID=33475208

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002525147A Expired - Fee Related CA2525147C (en) 2003-05-22 2004-05-20 Fe-cr alloy billet and method for production thereof

Country Status (9)

Country Link
EP (1) EP1637241B1 (en)
JP (1) JP4265603B2 (en)
CN (1) CN100417460C (en)
BR (1) BRPI0410554B1 (en)
CA (1) CA2525147C (en)
MX (1) MXPA05012509A (en)
RU (1) RU2313409C2 (en)
WO (1) WO2004103589A1 (en)
ZA (1) ZA200510009B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5320084B2 (en) * 2008-04-16 2013-10-23 株式会社神戸製鋼所 Manufacturing method of high Cr content steel with good descalability
CN101856669B (en) * 2010-06-02 2012-01-04 东北大学 Control method of softness of oxide scales on surface of hot-rolling strip steel
JP5423641B2 (en) * 2010-10-13 2014-02-19 新日鐵住金株式会社 Split rolling method for high purity ferritic stainless steel
JP6314785B2 (en) * 2014-10-14 2018-04-25 新日鐵住金株式会社 Split rolling method

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2720693B2 (en) * 1992-02-19 1998-03-04 住友金属工業株式会社 Blast rolling of austenitic stainless steel continuous cast slab.
JPH06100931A (en) * 1992-09-17 1994-04-12 Kawasaki Steel Corp Production of round billet for producing martenstic stainless seamless pipe
JPH06306455A (en) * 1993-04-26 1994-11-01 Nippon Steel Corp Manufacture of ferritic stainless steel having little surface flaw
JP2738281B2 (en) * 1993-12-22 1998-04-08 日本鋼管株式会社 Hot rolling method of stainless steel slab
JPH07204703A (en) * 1994-01-21 1995-08-08 Sumitomo Metal Ind Ltd Manufacture of hot rolled stainless steel sheet
JPH08174034A (en) * 1994-12-21 1996-07-09 Nippon Steel Corp Manufacture of cr stainless steel sheet
JPH10277912A (en) 1997-04-04 1998-10-20 Nippon Steel Corp Surface flaw treatment method for steel piece
JP3552579B2 (en) * 1998-03-31 2004-08-11 Ｊｆｅスチール株式会社 Hot rolling method of stainless steel slab and chemicals for applying stainless steel slab before hot rolling

Also Published As

Publication number Publication date
WO2004103589A1 (en) 2004-12-02
CA2525147C (en) 2009-08-18
EP1637241A1 (en) 2006-03-22
RU2313409C2 (en) 2007-12-27
ZA200510009B (en) 2006-12-27
MXPA05012509A (en) 2006-02-08
BRPI0410554A (en) 2006-06-20
JPWO2004103589A1 (en) 2006-07-20
BRPI0410554B1 (en) 2014-04-08
CN1791477A (en) 2006-06-21
EP1637241B1 (en) 2012-09-12
EP1637241A4 (en) 2007-03-28
JP4265603B2 (en) 2009-05-20
RU2005140109A (en) 2007-07-10
CN100417460C (en) 2008-09-10

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EEER Examination request
MKLA Lapsed

Effective date: 20210520