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IN2015DN00655A - - Google Patents

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Publication number
IN2015DN00655A
IN2015DN00655A IN655DEN2015A IN2015DN00655A IN 2015DN00655 A IN2015DN00655 A IN 2015DN00655A IN 655DEN2015 A IN655DEN2015 A IN 655DEN2015A IN 2015DN00655 A IN2015DN00655 A IN 2015DN00655A
Authority
IN
India
Prior art keywords
less
adhered
tin
maximum diameter
number density
Prior art date
Application number
Inventor
Masayuki Hashimura
Masafumi Miyazaki
Takashi Fujita
Hideaki Yamamura
Original Assignee
Nippon Steel & Sumitomo Metal 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 & Sumitomo Metal Corp filed Critical Nippon Steel & Sumitomo Metal Corp
Publication of IN2015DN00655A publication Critical patent/IN2015DN00655A/en

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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/10—Supplying or treating molten metal
    • B22D11/11—Treating the molten metal
    • B22D11/114—Treating the molten metal by using agitating or vibrating means
    • B22D11/115—Treating the molten metal by using agitating or vibrating means by using magnetic fields
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/064—Dephosphorising; Desulfurising
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/10—Handling in a vacuum
    • 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • 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
    • 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
    • C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • 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
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing 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
    • C22C38/20—Ferrous alloys, e.g. steel alloys containing chromium with copper
    • 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
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
    • 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
    • C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
    • 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
    • C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
    • 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
    • C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
    • 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
    • C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of 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
    • C22C38/18—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
    • 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
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/40—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rings; for bearing races

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

A case hardened steel having the following chemical composition in mass%: C=0.10 0.40%; Si=0.01 0.80%; Mn=0.1 1.5%; Cr=0.35 2.0%; Al=0.01 0.05%; REM=0.0001 0.050%; O=0.0001 0.0030%; Ti=less than 0.005%; N=0.015% or less; P=0.03% or less; S=0.01% or less; and with iron and impurities constituting the remainder. Further contained therein is a composite inclusion containing REM O S and Al and having TiN adhered thereto. The case hardened steel is characterized in that the total of the number density of MnS having a maximum diameter of 10µm or more and the number density of TiN having a maximum diameter of 1µm or more and independently present and not adhered to the inclusion is 5/mm or less.
IN655DEN2015 2012-10-19 2013-10-18 IN2015DN00655A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012231597 2012-10-19
PCT/JP2013/078328 WO2014061784A1 (en) 2012-10-19 2013-10-18 Case-hardened steel having excellent fatigue characteristics

Publications (1)

Publication Number Publication Date
IN2015DN00655A true IN2015DN00655A (en) 2015-06-26

Family

ID=50488340

Family Applications (1)

Application Number Title Priority Date Filing Date
IN655DEN2015 IN2015DN00655A (en) 2012-10-19 2013-10-18

Country Status (6)

Country Link
US (1) US9809875B2 (en)
JP (1) JP5794397B2 (en)
KR (1) KR101668201B1 (en)
CN (1) CN104603315B (en)
IN (1) IN2015DN00655A (en)
WO (1) WO2014061784A1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104195452B (en) * 2014-08-27 2016-08-17 南京创贝高速传动机械有限公司 A kind of driving gear and preparation method thereof
CN104911496A (en) * 2015-07-06 2015-09-16 武汉钢铁(集团)公司 Steel for single-layer concrete conveying pipe of trailer pump vehicle and production method thereof
CN105420456A (en) * 2015-11-10 2016-03-23 宁波市鸿博机械制造有限公司 Manufacturing method for pump shaft
MX2018007970A (en) 2015-12-28 2018-11-09 Jfe Steel Corp High-strength steel sheet, high-strength galvanized steel sheet, and method for manufacturing same.
JP6791008B2 (en) * 2017-05-19 2020-11-25 日本製鉄株式会社 Manufacturing method of carbon steel slabs and carbon steel shards
CN107604253A (en) * 2017-08-30 2018-01-19 东风商用车有限公司 Mn-Cr series carburizing steel with high hardenability
KR20200044866A (en) * 2017-09-13 2020-04-29 닛폰세이테츠 가부시키가이샤 Steel with excellent electric fatigue properties
CN110284071A (en) * 2019-08-02 2019-09-27 宜兴市佳信数控科技有限公司 A kind of rotary kiln super large gear and preparation method thereof
CN110484811B (en) * 2019-09-10 2020-07-28 中国科学院金属研究所 A kind of ultra-clean rare earth steel and inclusion modification control method
WO2021106086A1 (en) * 2019-11-26 2021-06-03 日本製鉄株式会社 Steel and bearing
JP7460884B2 (en) * 2020-01-08 2024-04-03 日本製鉄株式会社 bearing steel
CN112063928A (en) * 2020-09-17 2020-12-11 山东钢铁股份有限公司 High-hardenability and high-carburization rare earth CrMnTi gear steel and preparation method thereof
CN115717212B (en) * 2021-08-25 2024-09-10 宝山钢铁股份有限公司 Gear shaft steel and manufacturing method thereof
WO2025079426A1 (en) * 2023-10-11 2025-04-17 日本製鉄株式会社 Steel material

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JP3238031B2 (en) * 1995-01-18 2001-12-10 新日本製鐵株式会社 Long life carburized bearing steel
JP3626278B2 (en) 1996-03-25 2005-03-02 Ｊｆｅスチール株式会社 Method for producing Al-killed steel without clusters
JP3796949B2 (en) 1998-03-27 2006-07-12 Ｊｆｅスチール株式会社 Manufacturing method of steel wire rod for bearing
JP4347999B2 (en) 2000-08-30 2009-10-21 新日本製鐵株式会社 Induction hardening steel and induction hardening parts with excellent torsional fatigue properties
JP4256701B2 (en) 2003-03-13 2009-04-22 新日本製鐵株式会社 Inclusion finely dispersed steel with excellent fatigue life
JP4576913B2 (en) * 2003-09-29 2010-11-10 Ｊｆｅスチール株式会社 Manufacturing method of steel for machine structure having excellent fatigue characteristics and machinability
JP5129564B2 (en) * 2005-04-28 2013-01-30 アイシン・エィ・ダブリュ株式会社 Carburized induction hardening parts
JP4557833B2 (en) * 2005-08-02 2010-10-06 株式会社神戸製鋼所 High-strength mechanical structural steel parts with excellent fatigue properties and manufacturing method thereof
CN101058864A (en) * 2006-04-20 2007-10-24 大同特殊钢株式会社 Carburized component and manufacturing method thereof
JP5245544B2 (en) * 2008-05-30 2013-07-24 新日鐵住金株式会社 Common rail with excellent fatigue characteristics
JP5607956B2 (en) * 2010-03-09 2014-10-15 株式会社神戸製鋼所 Steel for machine structure and friction welding parts suitable for friction welding
JP6020017B2 (en) * 2011-12-14 2016-11-02 Ｊｆｅスチール株式会社 Cr-Mo steel sheet excellent in reheat cracking resistance, strength and toughness, and method for producing the same

Also Published As

Publication number Publication date
JP5794397B2 (en) 2015-10-14
JPWO2014061784A1 (en) 2016-09-05
KR20150029755A (en) 2015-03-18
KR101668201B1 (en) 2016-10-20
WO2014061784A1 (en) 2014-04-24
CN104603315A (en) 2015-05-06
CN104603315B (en) 2016-11-09
US20150191808A1 (en) 2015-07-09
US9809875B2 (en) 2017-11-07

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