Abstract: High-temperature vanadium corrosion of 5 commonly used heat-resistant cast steels has been researched, and the effects of vanadium-containing ash on the corrosion of five kinds of heat-resistant cast steels were analyzed.Results showed that the corrosion resistance capacity of vanadium alloys from high to low are 5050 Nb, 2848, 2535, 2520, and 2512.