The empirical prediction on the phase formation in as-cast (CuFeMnNi)1−xCrx alloys was consistent with the previousexperimental results, which indicated that the BCC phase formed in the alloys was in the thermodynamically unstable state. The corrosion resistance of the alloys in 2 wt% HNO3 solution was increased with the increased Cr content which wasmainly related to the formation of large anode and small cathode, increasing total volume fraction of Cr-rich FCC1 and BCCphases, the more uniform distribution of Cu and decreasing relative Cu content. The (CuFeMnNi)0.75Cr0.25 alloy exhibitedan excellent corrosion resistance dominated by localized corrosion, while the CuFeMnNi alloy showed the worst corrosionresistance. Moreover, the strength of the investigated alloys increased while the ductility decreased with the increasing of Crcontent, revealing that the extrinsic features played a more important role in the fracture behavior than the intrinsic features.