A comparative study of the influence of Cr addition in the magnetoimpedance effect of Fe73.5−xCrxSi13.5Cu1B9Nb3 (x=0, 3, 7, 10) nanocrystalline wires is here presented. The devitrification of the initial amorphous structure of the samples gives rise to the typical nanocrystalline structure composed of Fe-rich nanograins surrounded by the residual amorphous matrix. The decrease in the Curie temperature of the residual matrix with the Cr content of the alloy below room temperature in the Cr richest compositions (x=7 and 10), has associated a magnetic hardening at room temperature, and thus a negligible magnetoimpedance contribution. However, samples with x=0 and 3 present similar magnetoimpedance ratios, characterized by huge changes of inductance (≈500%) with field at low frequencies (inductive effect). The inclusion of Cr can be very important regarding the applicability of these alloys, due the associated improvement in the corrosion resistance of the samples.