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This work evaluates the effect of a destabilization treatment combined with a sub-critical diffusion (SCD) and a subsequent quenching (Q) steps on precipitation of secondary carbides and their influence on the wear properties of HCCI (16%Cr). The destabilization of the austenite at high temperature leads to a final microstructure composed by eutectic and secondary carbides, with an M7C3 nature, embedded in a martensitic matrix. An improved wear resistance was observed in the SCD+Q samples in comparison to the Q one, which was attributed to the size of secondary carbides.