To obtain a castable refractory material improved in spalling resistance without impairing its corrosion resistance by formulating a specific refractory aggregate, refractory ultrafine powder, alumina cement and dispersant.

This castable refractory material comprises 60-89 wt.% of a refractory aggregate adjusted in granular size, 10-25 wt.% of at least one kind of refractory ultrafine powder ≤10 μm in particle size, 1-10 wt.% of alumina cement, and 0.01-1 wt.% of a dispersant, wherein at least a part of the refractory aggregate is alumina cement-bound alumina/chromia bats whose content is pref. 5-35 wt.% and whose characteristics are preferably as follows: granular size: 5-10 mm, apparent porosity: 5.0-15.0%: Cr2O3 content: ≥10 wt.%, and CaO content: ≥0.5-5.0 wt.%. The refractory aggregate is e.g. of fused alumina, magnesia clinker; the refractory ultrafine powder is e.g. of alumina, clay; and the dispersant is e.g. sodium hexametaphosphate, sodium pyrophosphate.