For　the　compatibility　of　austenitic　stainless　steels,　including　AISI　304,　AISI　316L　and　AISI　347H,　with　binary　nitrate-carbonate　molten　salts　at　600　degrees　C,　dynamic　corrosion　tests　were　carried　out　for　1000　h　under　different　flow　conditions.　The　corrosion　rates　of　three　types　of　stainless　steels　in　nitrate　salts　were　investigated　using　the　weight　loss　method.　The　microstructures　were　analyzed　using　X-ray　diffraction　(XRD),　scanning　electron　microscopy　(SEM),　and　energy　dispersive　spectroscopy　(EDS)　to　study　the　corrosion　behavior　of　these　steels.　The　results　showed　that,　at　a　flow　rate　of　2　m/s,　the　corrosion　rates　(Rdepth)　of　304,　316L,　and　347H　stainless　steels　were　0.0217　mm/y,　0.0122　mm/y,　and　0.0076　mm/y,　respectively.　The　corrosion　rates　of　these　steels　were　3.85,　3.4,　and　2.2　times　higher　compared　to　static　conditions,　indicating　that　the　increase　in　flow　rate　exacerbated　the　corrosion　of　stainless　steel.　X-ray　diffraction　analysis　shows　that　the　primary　corrosion　products　are　iron　oxides.　Due　to　the　presence　of　Cr　and　Ni　in　316L　stainless　steel,　it　exhibits　better　corrosion　resistance　than　304　stainless　steel　under　dynamic　conditions.　Similarly,　the　addition　of　nickel　and　Nb　in　the　composition　of　347H　stainless　steel　enhances　its　corrosion　resistance.