<p>Experimental and numerical investigations of the hydrodynamics and heat transfer during the flow of liquid metal in a horizontal section of a heated pipe with an inner diameter of 19 mm, bent along an arc with a ratio of the ring radius to the inner diameter of 25 were carried out. The experiment was carried out on a mercury stand in the Reynolds number range of 11,000–80,000 and at different thermal loads. A probe with a correlation sensor consisting of two microthermocouples was used. A two-coordinate mechanism allowed continuous movement of the probe in a pipe cross section located 76 calibers from the entrance to the heating zone. Numerical simulation was performed under conditions corresponding to the experiment. The differential equations for the conservation of a moving continuous medium were written in a curvilinear coordinate system. The influence of thermogravitational convection was taken into account in the calculation. The averaged velocity and temperature fields in the stabilized region of a non-isothermal turbulent flow were measured in detail in the cross section. The experimental and calculated fields and profiles, presented in dimensionless form, are compared. A significant influence of inertial and gravitational forces on the velocity and temperature distributions in the flow cross section was discovered, leading to significant non-uniformity in the wall temperature distribution along the perimeter.</p>