  We obtain a class of dyonic black string solutions in 6D Salam-Sezgin model.
We then calculate various thermodynamic quantities associated with this
solution. Interestingly, for the thermodynamic quantities to be well defined,
the temperature is bounded from above. However, the mass and entropy can still
grow without any upper bound, reaching infinity at the maximal temperature. The
quantization condition obeyed by various charges is also analyzed. In
particular, we find that the Dirac quantization condition selects one
particular sign choice for the magnetic string charges.
