Pearlite steel rail of high internal hardness type excellent in wear resistance and fatigue failure resistance and process for production of the same

Details for Australian Patent Application No. 2008235820 (hide)

Owner JFE STEEL CORPORATION

Inventors Nishimura, Kimihiro; Kimura, Tatsumi; Suzuki, Shinichi; Mitao, Shinji; Shikanai, Nobuo; Honjo, Minoru

Agent Griffith Hack

Pub. Number AU-B-2008235820

PCT Pub. Number WO2008/123483

Priority 2007-084400 28.03.07 JP; 2007-264824 10.10.07 JP

Filing date 25 March 2008

Wipo publication date 16 October 2008

Acceptance publication date 9 December 2010

International Classifications

C22C 38/00 (2006.01) Ferrous alloys, e.g. steel alloys

B21B 1/085 (2006.01) Metal rolling methods or mills for making semi-finished products of solid or profiled cross-section

C21D 8/00 (2006.01) Modifying the physical properties by deformation combined with, or followed by, heat treatment

C21D 9/04 (2006.01) Heat treatment, e.g. annealing, hardening, quenching, tempering, adapted for particular articles - for rails

C22C 38/18 (2006.01) Ferrous alloys, e.g. steel alloys - containing chromium

C22C 38/48 (2006.01) Ferrous alloys, e.g. steel alloys - with niobium or tantalum

Event Publications

17 September 2009 PCT application entered the National Phase

  PCT publication WO2008/123483 Priority application(s): WO2008/123483

9 December 2010 Application Accepted

  Published as AU-B-2008235820

20 January 2011 Corrigenda

  Applications Accepted - Name Index Under the name JFE STEEL CORPORATION, Application No. 2008235820, under INID (54) correct the title to read Internal high hardness type pearlitic rail with excellent wear resistance and rolling contact fatigue resistance and method for producing same

7 April 2011 Standard Patent Sealed

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