Ceria and SAE-AISI 4150 steel belong to fundamentally different material chemistries. Ceria is a ceramic material, while SAE-AISI 4150 steel is a metal. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 8 material properties with values for both materials. Properties with values for just one material (25, in this case) are not shown.
For each property being compared, the top bar is ceria and the bottom bar is SAE-AISI 4150 steel.