The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 07, 2021
Filed:
Feb. 28, 2017
Applicant:
Nippon Steel & Sumitomo Metal Corporation, Tokyo, JP;
Inventor:
Manabu Kubota, Tokyo, JP;
Assignee:
NIPPON STEEL CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60B 17/00 (2006.01); C21D 9/00 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/18 (2006.01); C21D 9/04 (2006.01); C22C 38/14 (2006.01); C22C 38/12 (2006.01); C22C 38/20 (2006.01); C22C 38/16 (2006.01); C22C 38/24 (2006.01); C22C 38/22 (2006.01); C22C 38/28 (2006.01); C22C 38/26 (2006.01); C22C 38/40 (2006.01); B32B 15/00 (2006.01); B32B 15/01 (2006.01); C22C 38/08 (2006.01); B32B 15/18 (2006.01); C21D 1/18 (2006.01);
U.S. Cl.
CPC ...
B60B 17/00 (2013.01); B32B 15/00 (2013.01); B32B 15/01 (2013.01); B32B 15/011 (2013.01); B32B 15/18 (2013.01); C21D 9/0068 (2013.01); C21D 9/04 (2013.01); C22C 38/001 (2013.01); C22C 38/002 (2013.01); C22C 38/008 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/08 (2013.01); C22C 38/12 (2013.01); C22C 38/14 (2013.01); C22C 38/16 (2013.01); C22C 38/18 (2013.01); C22C 38/20 (2013.01); C22C 38/22 (2013.01); C22C 38/24 (2013.01); C22C 38/26 (2013.01); C22C 38/28 (2013.01); C22C 38/40 (2013.01); B60B 2360/102 (2013.01); B60B 2900/141 (2013.01); B60Y 2200/30 (2013.01); C21D 1/18 (2013.01); C21D 2211/009 (2013.01); Y10T 428/12951 (2015.01); Y10T 428/12958 (2015.01); Y10T 428/12965 (2015.01); Y10T 428/12972 (2015.01); Y10T 428/21 (2015.01); Y10T 428/218 (2015.01); Y10T 428/219 (2015.01); Y10T 428/24273 (2015.01); Y10T 428/24281 (2015.01);
Abstract
To provide a railway wheel which is excellent in corrosion fatigue resistance. The railway wheel according to the present embodiment has a chemical composition consisting of: in mass %, C: 0.65 to 0.80%, Si: 0.10 to 1.0%, Mn: 0.10 to 1.0%, P: not more than 0.030%, S: not more than 0.030%, Cr: 0.05 to 0.20%, Sn: 0.005 to 0.50%, Al: 0.010 to 0.050%, N: 0.0020 to 0.015%, Cu: 0 to 0.20%, Ni: 0 to 0.20%, Mo: 0 to 0.20%, V: 0 to 0.20%, Nb: 0 to 0.030%, and Ti: 0 to 0.030%, with the balance being Fe and impurities. A plate portion has a matrix structure composed of pearlite.