EP2048257A4 - FREE STAINLESS STEEL AND METHOD FOR MANUFACTURING THE SAME - Google Patents

FREE STAINLESS STEEL AND METHOD FOR MANUFACTURING THE SAME

Info

Publication number
EP2048257A4
EP2048257A4 EP07791987A EP07791987A EP2048257A4 EP 2048257 A4 EP2048257 A4 EP 2048257A4 EP 07791987 A EP07791987 A EP 07791987A EP 07791987 A EP07791987 A EP 07791987A EP 2048257 A4 EP2048257 A4 EP 2048257A4
Authority
EP
European Patent Office
Prior art keywords
manufacturing
same
stainless steel
free stainless
free
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
EP07791987A
Other languages
German (de)
French (fr)
Other versions
EP2048257A1 (en
EP2048257B1 (en
Inventor
Kazuyuki Sakuraya
Shigeo Yamamoto
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.)
National Institute for Materials Science
Original Assignee
National Institute for Materials Science
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 National Institute for Materials Science filed Critical National Institute for Materials Science
Publication of EP2048257A1 publication Critical patent/EP2048257A1/en
Publication of EP2048257A4 publication Critical patent/EP2048257A4/en
Application granted granted Critical
Publication of EP2048257B1 publication Critical patent/EP2048257B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • 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
    • 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
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/004—Dispersions; Precipitations

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
EP07791987.6A 2006-07-31 2007-07-30 Free-cutting stainless steel and process for producing the same Not-in-force EP2048257B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006208017 2006-07-31
PCT/JP2007/065314 WO2008016158A1 (en) 2006-07-31 2007-07-30 Free-cutting stainless steel and process for producing the same

Publications (3)

Publication Number Publication Date
EP2048257A1 EP2048257A1 (en) 2009-04-15
EP2048257A4 true EP2048257A4 (en) 2012-11-28
EP2048257B1 EP2048257B1 (en) 2014-02-19

Family

ID=38997330

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07791987.6A Not-in-force EP2048257B1 (en) 2006-07-31 2007-07-30 Free-cutting stainless steel and process for producing the same

Country Status (3)

Country Link
EP (1) EP2048257B1 (en)
JP (1) JP5142289B2 (en)
WO (1) WO2008016158A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009126954A2 (en) * 2008-04-11 2009-10-15 Questek Innovations Llc Martensitic stainless steel strengthened by copper-nucleated nitride precipitates
JP6044037B2 (en) * 2010-04-30 2016-12-14 国立研究開発法人物質・材料研究機構 Free-cutting stainless steel material for precision machining and its manufacturing method
WO2012014541A1 (en) * 2010-07-27 2012-02-02 独立行政法人物質・材料研究機構 Free-cutting stainless-steel cast product and process for producing same
JP6103746B2 (en) * 2012-08-23 2017-03-29 国立研究開発法人物質・材料研究機構 Free-cutting iron shape memory alloy
KR102570524B1 (en) * 2020-12-21 2023-08-24 주식회사 포스코 Austenitic stainless steel with improved corrosion resistance and machinability and method for manufacturing the same
JP7719344B2 (en) * 2021-02-12 2025-08-06 日本製鉄株式会社 Martensitic free-cutting stainless steel with excellent precision cutting properties

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04365835A (en) * 1991-06-14 1992-12-17 Nippon Steel Corp Production of free cutting steel containing boron nitride
JPH06145889A (en) * 1992-11-11 1994-05-27 Daido Steel Co Ltd Free cutting steel
JP2001329335A (en) * 2000-05-16 2001-11-27 Kobe Steel Ltd Low carbon sulfur based bn free cutting steel excellent in hot ductility
JP2003129191A (en) * 2001-10-24 2003-05-08 Nisshin Steel Co Ltd Boron nitride-containing stainless steel material with free-machinability, and manufacturing method therefor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06235042A (en) * 1993-02-09 1994-08-23 Nippon Steel Corp Ultra low yield strength steel
JPH07300656A (en) * 1994-04-30 1995-11-14 Daido Metal Co Ltd Sintered bearing alloy for high temperature use and its production
FR2840969B1 (en) * 2002-06-14 2004-09-03 Snecma Moteurs DENSE SELF-LUBRICATING DRY MATERIAL; MECHANICAL PIECE IN SAID MATERIAL; PROCESS FOR THE PREPARATION OF SAID MATERIAL
JP2006291296A (en) * 2005-04-11 2006-10-26 Nisshin Steel Co Ltd Austenitic stainless steel having excellent deep drawability

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04365835A (en) * 1991-06-14 1992-12-17 Nippon Steel Corp Production of free cutting steel containing boron nitride
JPH06145889A (en) * 1992-11-11 1994-05-27 Daido Steel Co Ltd Free cutting steel
JP2001329335A (en) * 2000-05-16 2001-11-27 Kobe Steel Ltd Low carbon sulfur based bn free cutting steel excellent in hot ductility
JP2003129191A (en) * 2001-10-24 2003-05-08 Nisshin Steel Co Ltd Boron nitride-containing stainless steel material with free-machinability, and manufacturing method therefor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2008016158A1 *

Also Published As

Publication number Publication date
WO2008016158A1 (en) 2008-02-07
EP2048257A1 (en) 2009-04-15
EP2048257B1 (en) 2014-02-19
JPWO2008016158A1 (en) 2009-12-24
JP5142289B2 (en) 2013-02-13

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