An outflow housing for a turbine section of a steam turbine. The outflow housing has an outflow housing wall, which surrounds a central drum chamber along a housing longitudinal axis, and a connection interface for connecting the outflow housing to a turbine housing of the steam turbine. A sealing device for sealing an end of the outflow housing, which end is arranged at the rear in the flow direction, with respect to a turbine shaft of the steam turbine is arranged on the outflow housing wall, wherein the sealing device is sealed to the outflow housing wall. A steam turbine has the outflow housing herein.