Temperatures of softening for high-basicity agglomerates and flux-free pellets from low silica titaniferous magnetite concentrate are established. Experimental results are compared with calculations of melting temperatures, obtained on the basis of empirical formulas. Comparison of experimental and calculated data revealed that temperatures of the beginning of softening depend on chemical composition of titaniferous magnetite concentrate, especially content of iron and titanium oxides. Temperatures of the end of softening depends on mineralogical composition of materials, in particularly, presence of low melting phases. It is established that the higher slag-making oxides content in agglomerate, the closer experimental results to calculations.