CA2222281A1 - Low-alloy heat-treated pearlitic steel rail excellent in wear resistance and weldability and process for producing the same - Google Patents

Low-alloy heat-treated pearlitic steel rail excellent in wear resistance and weldability and process for producing the same

Info

Publication number
CA2222281A1
CA2222281A1 CA002222281A CA2222281A CA2222281A1 CA 2222281 A1 CA2222281 A1 CA 2222281A1 CA 002222281 A CA002222281 A CA 002222281A CA 2222281 A CA2222281 A CA 2222281A CA 2222281 A1 CA2222281 A1 CA 2222281A1
Authority
CA
Canada
Prior art keywords
weldability
steel rail
wear resistance
producing
terms
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
CA002222281A
Other languages
French (fr)
Other versions
CA2222281C (en
Inventor
Masaharu Ueda
Hideaki Kageyama
Kouichi Uchino
Koji Babazono
Ken Kutaragi
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 CA2222281A1 publication Critical patent/CA2222281A1/en
Application granted granted Critical
Publication of CA2222281C publication Critical patent/CA2222281C/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium 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
    • C21D9/04—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rails
    • 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

Abstract

The present invention relates to a pearlitic steel rail having the significantly improved wear resistance and weldability (welding construction, properties of the welded joints) that rails for heavy load are required to have, and a process for producing the same. The present invention particularly relates to a pearlitic steel rail excellent in wear resistance and weldability, comprising, in terms of weight, more than 0.85 to 1.20 of C, 0.10 to 1.00% of Si, 0.20 to 1.50% of Mn, more than 0.50 to 1.00% of Cr, or comprising more than 0.85 to 1.20% of C, 0.40 to 1.00% of Si, 0.20 to less than 0.40% of Mn, 0.35 to 0.50% of Cr, the content sum Si/4 + Mn/2 + Cr being 0.80 to 0.95% or being 0.8 to 1.8% in terms of weight, further comprising, in terms of weight, one or at least two elements selected from the group consisting of Mo, V, Nb and B and the balance Fe and unavoidable impurities, and having a pearlite structure to the depth of at least 20 mm from the head portion corner and the head top surface as a starting point, the pearlite structure having a Vickers hardness of at least 320, the difference in Vickers hardness between the base steel and the welded joint of the steel rail being made up to 30 to prevent a wear dent caused by the local wear of the rail top surface in the welded joint without impairing the weldability.
CA002222281A 1996-03-27 1996-05-14 Low-alloy heat-treated pearlitic steel rail excellent in wear resistance and weldability and process for producing the same Expired - Lifetime CA2222281C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP8-72049 1996-03-27
JP7204996 1996-03-27
JP9277296A JPH09316598A (en) 1996-03-27 1996-04-15 Pearlitic rail, excellent in wear resistance and weldability, and its production
JP8-92772 1996-04-15
PCT/JP1996/001265 WO1997036016A1 (en) 1996-03-27 1996-05-14 Low-alloy heat-treated pearlitic steel rails with excellent wear resistance and welding characteristics and process for production thereof

Publications (2)

Publication Number Publication Date
CA2222281A1 true CA2222281A1 (en) 1997-10-02
CA2222281C CA2222281C (en) 2002-02-26

Family

ID=26413177

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002222281A Expired - Lifetime CA2222281C (en) 1996-03-27 1996-05-14 Low-alloy heat-treated pearlitic steel rail excellent in wear resistance and weldability and process for producing the same

Country Status (6)

Country Link
JP (1) JPH09316598A (en)
CN (1) CN1074056C (en)
AU (1) AU690457B2 (en)
BR (1) BR9608995A (en)
CA (1) CA2222281C (en)
WO (1) WO1997036016A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015157856A1 (en) * 2014-04-17 2015-10-22 Evraz Inc. Na Canada High carbon steel rail with enhanced ductility
AU2014245505B2 (en) * 2013-03-28 2016-09-15 Jfe Steel Corporation Rail manufacturing method and manufacturing equipment

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996028581A1 (en) * 1995-03-14 1996-09-19 Nippon Steel Corporation Rail having high wear resistance and high internal damage resistance, and its production method
CN1113724C (en) * 1999-02-04 2003-07-09 魏国章 Welding technology for preventing weld crack on refractory pearlitic steel
CA2451147C (en) 2002-04-05 2013-07-30 Nippon Steel Corporation Pearlitic steel rail excellent in wear resistance and ductility and method for producing the same
WO2008123483A1 (en) * 2007-03-28 2008-10-16 Jfe Steel Corporation Pearlite steel rail of high internal hardness type excellent in wear resistance and fatigue failure resistance and process for production of the same
JP5753781B2 (en) * 2008-07-11 2015-07-22 アクティエボラゲット・エスコーエッフ Method for manufacturing steel components, weld lines, welded steel components, and bearing components
AU2011262876B2 (en) * 2010-06-07 2016-02-04 Nippon Steel Corporation Steel rail and method of manufacturing the same
WO2013079438A1 (en) * 2011-11-28 2013-06-06 Tata Steel Uk Ltd Rail steel with an excellent combination of wear properties, rolling contact fatigue resistance and weldability
US9334546B2 (en) * 2011-11-29 2016-05-10 Evraz Inc. Na Canada Method and apparatus for treatment of a rail weld
EP2674504A1 (en) * 2012-06-11 2013-12-18 Siemens S.p.A. Method and system for thermal treatments of rails
US9670570B2 (en) 2014-04-17 2017-06-06 Evraz Inc. Na Canada High carbon steel rail with enhanced ductility
CN107675083B (en) * 2017-10-10 2019-05-10 攀钢集团研究院有限公司 Obdurability pearlite steel rail and its manufacturing method
CN108570550B (en) * 2018-05-18 2020-06-26 攀钢集团攀枝花钢铁研究院有限公司 Postweld heat treatment method for heat-treatment type bainite steel rail welded joint
CN108660306B (en) * 2018-06-07 2020-07-07 攀钢集团攀枝花钢铁研究院有限公司 Postweld heat treatment method for hypereutectoid steel rail and eutectoid steel rail welded joint
CN108796202B (en) * 2018-07-02 2020-05-19 攀钢集团攀枝花钢铁研究院有限公司 Heat treatment method for welded joint of dissimilar material steel rail
CN108754114B (en) * 2018-07-02 2020-06-16 攀钢集团攀枝花钢铁研究院有限公司 Heat treatment method for steel rail welding joint
CN108823394B (en) * 2018-07-25 2020-07-07 攀钢集团攀枝花钢铁研究院有限公司 Steel rail postweld heat treatment method
CN109082589B (en) * 2018-08-22 2019-10-25 武汉钢铁有限公司 A kind of ultra-high strength and toughness guided way steel and preparation method thereof
CN109022750A (en) * 2018-10-26 2018-12-18 攀钢集团攀枝花钢铁研究院有限公司 The post weld heat treatment method of rail
WO2020170930A1 (en) * 2019-02-19 2020-08-27 Ｊｆｅスチール株式会社 Method for manufacturing rail, and rail
CN112239831A (en) * 2020-10-19 2021-01-19 攀钢集团攀枝花钢铁研究院有限公司 High-toughness and high-cold railway steel rail and production method thereof
WO2022209293A1 (en) * 2021-03-31 2022-10-06 Ｊｆｅスチール株式会社 Rail and method for manufacturing same
CN113637912A (en) * 2021-08-18 2021-11-12 攀钢集团攀枝花钢铁研究院有限公司 Corrosion-resistant hypereutectoid steel rail and preparation method thereof

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63277721A (en) * 1987-05-09 1988-11-15 Nkk Corp Manufacture of rail combining high strength with high toughness
JPH0487042A (en) * 1990-07-31 1992-03-19 Sony Corp Optical pickup device
JP2601741B2 (en) * 1991-12-18 1997-04-16 新日本製鐵株式会社 Rail repair welding method
JPH06279927A (en) * 1993-03-29 1994-10-04 Nippon Steel Corp High strength rail excellent in ductility and toughness and its production
JP3323272B2 (en) * 1993-03-29 2002-09-09 新日本製鐵株式会社 Manufacturing method of high strength rail with excellent ductility and toughness

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2014245505B2 (en) * 2013-03-28 2016-09-15 Jfe Steel Corporation Rail manufacturing method and manufacturing equipment
US10214795B2 (en) 2013-03-28 2019-02-26 Jfe Steel Corporation Rail manufacturing method and manufacturing equipment
US10563278B2 (en) 2013-03-28 2020-02-18 Jfe Steel Corporation Rail manufacturing method and manufacturing equipment
WO2015157856A1 (en) * 2014-04-17 2015-10-22 Evraz Inc. Na Canada High carbon steel rail with enhanced ductility

Also Published As

Publication number Publication date
CN1189858A (en) 1998-08-05
JPH09316598A (en) 1997-12-09
CA2222281C (en) 2002-02-26
AU690457B2 (en) 1998-04-23
BR9608995A (en) 1999-07-06
AU5660096A (en) 1997-10-17
WO1997036016A1 (en) 1997-10-02
CN1074056C (en) 2001-10-31

Similar Documents

Publication Publication Date Title
CA2222281A1 (en) Low-alloy heat-treated pearlitic steel rail excellent in wear resistance and weldability and process for producing the same
FI111854B (en) Carbide-free bainitic steel rail and process for making the same
CA2154779A1 (en) Rails of Pearlitic Steel with High Wear Resistance and Toughness and Their Manufacturing Methods
CA2186476A1 (en) Weldable High Strength Steel Having Excellent Low Temperature Toughness
EP0867520A3 (en) Welded high-strength steel structures and methods of manufacturing the same
CA2086283A1 (en) Low-yield-ratio high-strength hot-rolled steel sheet and method of manufacturing the same
CA2190124A1 (en) Steel Rail Having Excellent Wear Resistance and Internal Breakage Resistance and Method of Producing the Same
CA2166359A1 (en) High-strength, bainitic steel rail having excellent damage-resistance
EP1096031A3 (en) High-strength spring steel
EP0705369B1 (en) Rails
JPS63169359A (en) Thick steel plate having high toughness and wear resistance
TW494141B (en) High tensile strength steel product for high heat input welding, having excellent toughness in heat-affected zone
IT1196614B (en) PROCEDURE FOR THE CONNECTION OF HEARTS IN AUSTENITIC STEEL TO MANGANESE FOR RAILWAY EXCHANGES WITH RAILS IN CARBON STEEL OR LOW ALLOY
NO891119L (en) BAINITIC CORE PAINTING BAR.
US6375763B1 (en) Pearlitic steel railroad rail
ATE239103T1 (en) COMPOSITION OF TOOL STEEL
CA1252311A (en) Special steels and their method of preparation
EP0692548A1 (en) Wear-resisting high-manganese cast steel
CA2148870A1 (en) Rail Excellent in Resistance to Rolling Fatigue Damage
Cornell Improvement in Carbon Rail Steels by the Addition of Columbium (Niobium)
JPH0688162A (en) High strength and high toughness non-heat treated steel
CA2152877A1 (en) Rail Excellent in Toughness and Wear Resistance and Method of Manufacturing Same
US1974115A (en) Alloy steel railway track member
RU2094519C1 (en) Steel and its variants
Okabe et al. Development of Heavy Section Steel Plates for Boilers With Good Weldability.(Synopsis)

Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20160516