TW200710227A - Steel material for mechanical structure excellent in strength, ductility and toughness and manufacturing method thereof - Google Patents

Steel material for mechanical structure excellent in strength, ductility and toughness and manufacturing method thereof

Info

Publication number
TW200710227A
TW200710227A TW095124422A TW95124422A TW200710227A TW 200710227 A TW200710227 A TW 200710227A TW 095124422 A TW095124422 A TW 095124422A TW 95124422 A TW95124422 A TW 95124422A TW 200710227 A TW200710227 A TW 200710227A
Authority
TW
Taiwan
Prior art keywords
strength
toughness
less
mechanical structure
ductility
Prior art date
Application number
TW095124422A
Other languages
Chinese (zh)
Other versions
TWI321590B (en
Inventor
Keiichi Maruta
Tohru Hayashi
Nobutaka Kurosawa
Hideto Kimura
Takaaki Toyooka
Hase Kazukuni
Yamada Katsumi
Original Assignee
Jfe Steel 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 Jfe Steel Corp filed Critical Jfe Steel Corp
Publication of TW200710227A publication Critical patent/TW200710227A/en
Application granted granted Critical
Publication of TWI321590B publication Critical patent/TWI321590B/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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • 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
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • 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
    • 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
    • C22C38/02—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
    • 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
    • C21D2211/008—Martensite

Landscapes

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

Abstract

A steel for mechanical structure with an excellent balance of strength, elongation and toughness surpassing that of maraging steel; and an application product thereof. There is provided a steel for mechanical structure excelling in strength, ductility and toughness characterized in that its component formulation is composed of, by mass percentage, more than 0.30 to 0.5% C, 1.0% or less Si, 1.5% or less Mn, 0.025% or less Al, 0.3 to 0.5% Mo, 0.0005 to 0.01% B and the balance Fe and unavoidable impurities, and that the structure thereof at a volume ratio of 90% or greater consists of martensite structure whose constituent blocks are 1.5 m or less in size, and that the ratio of solid solution B is 0.0005% or greater and is present on old austenite grain boundaries in an amount of at least 1.5 times that within old austenite grains.
TW095124422A 2005-07-05 2006-07-05 Steel material for mechanical structure excellent in strength, ductility and toughness and manufacturing method thereof TWI321590B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2005195739 2005-07-05
JP2005326844 2005-11-11
JP2006079070A JP2007154305A (en) 2005-07-05 2006-03-22 Steel for mechanical structure with excellent strength, ductility and toughness, and its manufacturing method

Publications (2)

Publication Number Publication Date
TW200710227A true TW200710227A (en) 2007-03-16
TWI321590B TWI321590B (en) 2010-03-11

Family

ID=37604564

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095124422A TWI321590B (en) 2005-07-05 2006-07-05 Steel material for mechanical structure excellent in strength, ductility and toughness and manufacturing method thereof

Country Status (6)

Country Link
US (1) US20080017283A1 (en)
EP (1) EP1900838A4 (en)
JP (1) JP2007154305A (en)
KR (1) KR100945313B1 (en)
TW (1) TWI321590B (en)
WO (1) WO2007004707A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI399441B (en) * 2007-10-24 2013-06-21 Nippon Steel & Sumitomo Metal Corp Induction hardening steel component or parts with pre-carbonitriding treatment

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101243197A (en) * 2005-10-31 2008-08-13 杰富意钢铁株式会社 High-strength steel excellent in delayed fracture resistance characteristics and metal bolts
CN101960034B (en) * 2008-03-27 2012-10-31 新日本制铁株式会社 High-strength galvanized steel sheet, high-strength alloyed hot-dip galvanized sheet, and high-strength cold-rolled steel sheet which excel in moldability and weldability, and manufacturing method for the same
JP5425675B2 (en) * 2010-03-18 2014-02-26 愛知製鋼株式会社 Continuously variable transmission belt and steel for continuously variable transmission belt
JP5410466B2 (en) * 2011-03-01 2014-02-05 株式会社神戸製鋼所 Stainless steel flux cored wire
WO2012153009A1 (en) * 2011-05-12 2012-11-15 Arcelormittal Investigación Y Desarrollo Sl Method for the production of very-high-strength martensitic steel and sheet thus obtained
WO2012153008A1 (en) * 2011-05-12 2012-11-15 Arcelormittal Investigación Y Desarrollo Sl Method for the production of very-high-strength martensitic steel and sheet or part thus obtained
CN105814226B (en) 2013-12-12 2018-01-19 爱知制钢株式会社 CVT ring components and its manufacture method
JP6202034B2 (en) 2015-04-06 2017-09-27 トヨタ自動車株式会社 Metal ring and manufacturing method thereof
CN104988391A (en) * 2015-07-07 2015-10-21 河北钢铁股份有限公司 1200-MPa-level cold milling steel and manufacturing method thereof
CN105256246A (en) * 2015-10-22 2016-01-20 南京钢铁股份有限公司 Method for producing thin-specification and high-strength atmosphere corrosion resistance structural steel plate
CN105296885B (en) * 2015-11-19 2017-07-18 攀钢集团攀枝花钢铁研究院有限公司 High chromium weathering steel of titaniferous and preparation method thereof
CN116219279B (en) * 2022-12-23 2024-04-16 鞍钢股份有限公司 High-strength high-toughness steel for nuclear reactor containment vessel and manufacturing method thereof

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0637686B2 (en) * 1988-11-29 1994-05-18 住友金属工業株式会社 High toughness high carbon thin steel plate
JP3402562B2 (en) * 1996-07-19 2003-05-06 大同特殊鋼株式会社 Induction hardened parts
US20050034795A1 (en) * 2001-08-17 2005-02-17 Takashi Motoyoshi Highly impact-resistant steel pipe and method for producing the same
JP4429559B2 (en) * 2001-09-27 2010-03-10 本田技研工業株式会社 Manufacturing method of metal laminated ring
US20060065328A1 (en) * 2002-10-18 2006-03-30 Yasuhiro Omori Steel material for mechanical structure excellent in suitability for rolling, quenching crack resistance, and torsional property and drive shaft
JP2005068482A (en) * 2003-08-22 2005-03-17 Daido Steel Co Ltd Element for belt cvt and its manufacturing method
EP1669469B1 (en) * 2003-09-29 2008-12-17 JFE Steel Corporation Steel parts for machine structure, material therefor, and method for manufacture thereof
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
US20080247900A1 (en) * 2004-07-16 2008-10-09 Jfe Steel Corporation Component for Machine Structure, Method of Producing the Same and Material for Induction Hardening

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI399441B (en) * 2007-10-24 2013-06-21 Nippon Steel & Sumitomo Metal Corp Induction hardening steel component or parts with pre-carbonitriding treatment

Also Published As

Publication number Publication date
KR20070088766A (en) 2007-08-29
JP2007154305A (en) 2007-06-21
US20080017283A1 (en) 2008-01-24
WO2007004707A1 (en) 2007-01-11
TWI321590B (en) 2010-03-11
EP1900838A1 (en) 2008-03-19
EP1900838A4 (en) 2009-03-25
KR100945313B1 (en) 2010-03-08

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees