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: more than 0.80% to 1.35%, Si: 1.00% or less, Mn: 0.10 to 1.50%, P: 0 to 0.050%, S: 0 to 0.030%, 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 the central axis, when regions of 15 mm × 15 mm defined by a plurality of axial line segments which are parallel to the central axis and which are 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 which are perpendicular to the central axis and which are 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 1.40% by mass or less.
RAILROAD WHEEL
EISENBAHNRAD
ROUE DE MATÉRIEL DE CHEMIN DE FER
2025-02-19
Patent
Electronic Resource
English