In recent years, progress in materials and fabrication techniques has allowed for a reduction in SOFC operating temperatures to a range (e.g., 600-800ºC) where Ni-based heat resistant alloys can be considered as potential replacements for the traditional ceramic interconnect materials used in high temperature (900-1000ºC) SOFC stacks. Among the Ni-based resistant alloys, the Ni-Cr-Mo based alloys with appropriate levels of chromium often demonstrate a relatively low thermal expansion. In this work, Haynes242, Hastelloy S, and Haynes230, three Ni-Cr-Mo based alloys with different levels of chromium, have been evaluated via a series of experimental studies, which include: (i) thermal expansion, (ii) scale composition, crystal structure and microstructure during exposure in air and wet hydrogen, (iii) oxidation behavior under dual atmosphere exposure, (iv) scale electrical conductivity, and (v) scale thermo-chemical stability. In this paper, results of these studies and the suitability of these three alloys will be presented in comparison with ferritic stainless steels.