MAGNIFER 7904 is a soft magnetic nickel-iron alloy containing about 5% molybdenum. It offers extremely high permeability, very low coercive force and minimum hysteresis loss. It is used primarily for transformers, tape-wound troids, laminations, shielding and relay parts. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Ni-291. Producer or source: Vereingte Deutsche Metallwerke AG. Originally published September 1983, revised February 1984.