Results of resistivity measurements and x‐ray studies of four additional superconducting metastable simple cubic alloys are presented. It is found that, in general, superconducting phases with simple cubic structure occur at average valence electron concentrations of 4.5 and 6.5 valence electrons per atom, and average valence electron densities of 0.16 and 0.26 electrons/Å3. An inverse relation between the transition temperatureTcand the lattice spacing is pointed out which applies generally for both antimony‐ and tellurium‐base alloys.