HyMu 80 is a nickel-molybdenum-iron alloy capable of being heat treated to show very high initial permeabilities, maximum permeabilities, and AC core losses at low magnetic flux densities. This alloy is produced in strip form at thicknesses less than 0.008" (0.02 mm). Cut lengths, heat treated to magnetic property requirements ready for photoetching, or coiled strip, suitable for blanking or forming can be supplied.
transformer cores, tape wound toroids and laminations where compactness and weight factors are important. It has also been used for shielding to protect electrical components from stray magnetic fields.