US Patent 11890894 Railway wheel
Patent 11890894 was granted and assigned to Nippon Steel on February, 2024 by the United States Patent and Trademark Office.
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US Patent 11890894 Railway wheel
Article
Patent abstract
The railway wheel according to the present embodiment has a chemical composition consisting of: in mass %, C: 0.80 to 1.15%, Si: 0.45% or less, Mn: 0.10 to 0.85%, P: 0.050% or less, S: 0.030% or less, Al: 0.200 to 1.500%, N: 0.0200% or less, Nb: 0.005 to 0.050%, Cr: 0 to 0.25%, and V: 0 to 0.12%, with the balance being Fe and impurities, wherein at least in the microstructure of the rim part and the web part, the amount of pro-eutectoid cementite defined by Formula (1) is 2.00 pieces/100 μm or less:
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Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Manabu Kubota0
Taketo Maejima0
Date of Patent
February 6, 2024
0Patent Application Number
172762090
Date Filed
September 27, 2019
0Patent Citations
Patent Primary Examiner
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