IN2014DN08683A - - Google Patents

Info

Publication number
IN2014DN08683A
IN2014DN08683A IN8683DEN2014A IN2014DN08683A IN 2014DN08683 A IN2014DN08683 A IN 2014DN08683A IN 8683DEN2014 A IN8683DEN2014 A IN 8683DEN2014A IN 2014DN08683 A IN2014DN08683 A IN 2014DN08683A
Authority
IN
India
Prior art keywords
impurities
steel material
case hardening
hardening steel
carburized part
Prior art date
Application number
Inventor
Hideki Imataka
Masayuki Horimoto
Gen Kato
Mitsuru Fujimoto
Original Assignee
Nippon Steel & Sumitomo Metal Corp
Honda Motor Co 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=49482946&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=IN2014DN08683(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Nippon Steel & Sumitomo Metal Corp, Honda Motor Co Ltd filed Critical Nippon Steel & Sumitomo Metal Corp
Publication of IN2014DN08683A publication Critical patent/IN2014DN08683A/en

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
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
    • 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
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/06—Surface hardening
    • 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
    • C21D6/002—Heat treatment of ferrous alloys containing Cr
    • 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
    • C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
    • 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
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • 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
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • 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
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • 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
    • C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
    • 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
    • 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
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
    • 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
    • C21D2211/002—Bainite
    • 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
    • C21D2211/005—Ferrite
    • 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
    • C21D2211/009—Pearlite

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)
  • Manufacturing & Machinery (AREA)
  • Heat Treatment Of Articles (AREA)
  • Heat Treatment Of Steel (AREA)
  • Pulleys (AREA)

Abstract

A case hardening steel material which has a chemical composition that contains in mass% 0.15 to 0.23% of C 0.01 to 0.15% of Si 0.65 to 0.90% of Mn 0.010 to 0.030% of S 1.65 to 1.80% of Cr 0.015 to 0.060% of Al 0.0100 to 0.0250% of N and if necessary a specific amount of Cu and/or Ni with the balance being Fe and impurities and that satisfies 25 = Mn/S = 85 0.90 = Cr/(Si+2Mn) = 1.20 and 1.16Si+0.70Mn+Cr = 2.20 with the contents of P Ti and O as impurities satisfying P=0.020% Ti=0.005% and O=0.0015% and which has a structure that comprises 20 to 70% of ferrite in area fraction with the remainder being pearlite and/or bainite. This case hardening steel material exhibits a low component cost and excellent hot workability and machinability and can ensure excellent bending fatigue strength and wear resistance of a carburized part thus being suitable as a raw material for a carburized part such as a CVT pulley shaft.
IN8683DEN2014 2012-04-25 2013-04-16 IN2014DN08683A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012099332A JP5886119B2 (en) 2012-04-25 2012-04-25 Case-hardened steel
PCT/JP2013/061265 WO2013161623A1 (en) 2012-04-25 2013-04-16 Case hardening steel material

Publications (1)

Publication Number Publication Date
IN2014DN08683A true IN2014DN08683A (en) 2015-05-22

Family

ID=49482946

Family Applications (1)

Application Number Title Priority Date Filing Date
IN8683DEN2014 IN2014DN08683A (en) 2012-04-25 2013-04-16

Country Status (7)

Country Link
US (1) US9777354B2 (en)
JP (1) JP5886119B2 (en)
KR (1) KR101609970B1 (en)
CN (1) CN104302799B (en)
IN (1) IN2014DN08683A (en)
MX (1) MX360385B (en)
WO (1) WO2013161623A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016002931A1 (en) * 2014-07-03 2016-01-07 新日鐵住金株式会社 Rolled steel bar for mechanical structure and production method therefor
JP6249100B2 (en) * 2014-07-03 2017-12-20 新日鐵住金株式会社 Rolled steel bar for machine structure and manufacturing method thereof
JP6578651B2 (en) * 2014-11-26 2019-09-25 愛知製鋼株式会社 Carburized member with excellent wear resistance and method for producing the same
KR102386638B1 (en) * 2017-08-25 2022-04-14 닛폰세이테츠 가부시키가이샤 Steel for carburized bearing parts
JP2019183266A (en) * 2018-03-30 2019-10-24 株式会社神戸製鋼所 Steel for case hardening
CN113260717B (en) * 2018-12-28 2023-03-21 日本制铁株式会社 Steel material
CN115335544B (en) * 2020-06-26 2024-04-26 日本制铁株式会社 Steel material and carburized steel part

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2819416B2 (en) 1989-03-31 1998-10-30 新日本製鐵株式会社 Manufacturing method for high fatigue strength case-hardened products
BR9804879A (en) 1997-04-30 1999-08-24 Kawasaki Steel Co High ductility steel product, high strength and process for its production
JP3521190B2 (en) 1999-09-16 2004-04-19 三菱製鋼室蘭特殊鋼株式会社 High-strength chromium steel for carburizing and carbonitriding
JP3931797B2 (en) 2002-12-03 2007-06-20 住友金属工業株式会社 Induction hardening steel
JP4464864B2 (en) * 2005-04-27 2010-05-19 株式会社神戸製鋼所 Case-hardening steel with excellent grain coarsening resistance and cold workability that can be omitted for soft annealing.
JP4899902B2 (en) 2007-02-05 2012-03-21 住友金属工業株式会社 High temperature carburizing steel
JP5163241B2 (en) * 2008-04-07 2013-03-13 新日鐵住金株式会社 Case-hardened steel
JP5163242B2 (en) * 2008-04-07 2013-03-13 新日鐵住金株式会社 Case-hardened steel
JP4709944B2 (en) 2009-01-16 2011-06-29 新日本製鐵株式会社 Case-hardened steel, carburized parts, and method for producing case-hardened steel
JP5332646B2 (en) * 2009-01-23 2013-11-06 Ｊｆｅスチール株式会社 Manufacturing method of carburizing steel with excellent cold forgeability
JP5338370B2 (en) * 2009-02-24 2013-11-13 愛知製鋼株式会社 Carburizing steel
CN102597290A (en) * 2009-11-05 2012-07-18 住友金属工业株式会社 Hot-rolled steel bar or wire rod

Also Published As

Publication number Publication date
KR20140138892A (en) 2014-12-04
US20150125339A1 (en) 2015-05-07
KR101609970B1 (en) 2016-04-06
US9777354B2 (en) 2017-10-03
JP5886119B2 (en) 2016-03-16
JP2013227606A (en) 2013-11-07
CN104302799A (en) 2015-01-21
MX2014012933A (en) 2015-05-11
MX360385B (en) 2018-10-31
CN104302799B (en) 2016-11-09
WO2013161623A1 (en) 2013-10-31

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