A railway wheel that is excellent in toughness at a hub part is provided. A railway wheel according to the present disclosure includes a rim part, a hub part having a through hole, and a web part. A chemical composition of the railway wheel consists of, in mass%, C: 0.60 to 0.80%, Si: 1.00% or less, Mn: 0.10 to 1.50%, P: 0.050% or less, S: 0.030% or less, and N: 0.0200% or less, with the balance being Fe and impurities. In a cross section of the hub part obtained when the hub part is cut in a central axis direction of the through hole along a plane including a central axis, when regions of 15 mm × 15 mm defined by a plurality of axial line segments parallel to the central axis and arranged at a pitch of 15 mm in a radial direction of the railway wheel from an inner peripheral surface of the through hole, and by a plurality of radial line segments perpendicular to the central axis and arranged at a pitch of 15 mm in the central axis direction from a surface of the hub part in which an opening of the through hole is formed are defined as rectangular regions, the average C concentration in each rectangular region in the cross section of the hub part is less than 0.90% by mass.
RAILROAD WHEEL
EISENBAHNRAD
ROUE POUR MATÉRIEL DE CHEMIN DE FER
2024-02-21
Patent
Electronic Resource
English