In　order　to　understand　the　heat　transfer　characteristics　of　molten　salt　and　testify　the　validity　of　the　well-known　empirical　convective　heat　transfer　correlations,　an　experimental　study　on　turbulent　convective　heat　transfer　with　molten　salt　in　a　circular　tube　was　conducted　in　this　paper.　Molten　salt　circulations　were　realized　and　operated　in　a　specially　designed　system　over　1000　h.　The　flow　rates　and　temperatures　of　molten　salt　and　mineral　oil　at　the　inlet　and　outlet　in　the　test　section　were　measured　and　the　average　forced　convective　heat　transfer　coefficients　of　molten　salt　were　determined　by　least-squares　method.　Finally,　heat　transfer　correlations　of　turbulent　flow　with　molten　salt　in　a　circular　tube　were　obtained.　Good　agreement　was　observed　between　the　experimental　data　of　molten　salt　and　the　existing　well-known　correlations.　The　experimental　data　of　molten　salt　in　the　present　work　are　consistent　with　experimental　results　reported　by　different　references　in　a　wide　range　of　Prandtl　numbers　from　0.7　to　59.9.　(C)　2009　Elsevier　Ltd.　All　rights　reserved.