Abstract: A process for manufacture of a railroad track part, in particular a large points part, with rail parts such as a frog point and connecting rails, and the track part obtained. The track part is made of materials of differing composition, one of which is a carbon steel and one of which is an austenitic manganese steel, which are connected by welding and are subsequently subjected to a joint heat treatment. To permit joining of the materials without negative effects on their properties, the parts are joined directly by electron beam welding or indirectly via an intermediate layer comprising a nickel-based alloy, the joined parts then being heated to a temperature T and held over a time t such that for the austenitic manganese steel, solution annealing takes place, and for the carbon steel, austenitizing takes place.

Abstract: In a steel frog for rail crossings and rail switches, the frog point or, respectively, the surface of the frog being travelled upon by the wheels consists of an age-hardening steel having the composition______________________________________ C 0.01 to 0.05% Ti 0.1 to 1% Si 0.01 to 0.2% Cr 0 to 13% Mn 0.01 to 0.2% Al 0 to 0.2% Co 0 to 15% B 0 to 0.1% Mo 1.5 to 6% Zr 0 to 0.1% Ni 7 to 20% ______________________________________The frog is manufactured such that the surface being travelled upon by the wheels is applied by build-up welding onto a base body consisting of nominal rail steel.

Abstract: According to the invention a railway turnout comprises two wing rails and a point, carried on a frog, which includes a nose, the running surface of which is substantially co-planar with the running surfaces of the rail of the turnout, the wing rails being provided with tread surface inserts inclined upwardly above the plane of the running surfaces, the incline of the wing rails extending longitudinally along the wing rails towards the heels thereof and commencing at a point corresponding to the point of deviation from the gauge line, of the wing rail, the tread surface of the wing rails being shaped, in cross section, from the edge adjacent the gauge line, at an angle corresponding to the shape of the average worn car wheel and the angles of the incline and the slope being dependent on the taper on the wheels and on the angle of deflection of the turnout.