MU GUARD 80 is a nickel-iron-molybdenum alloy. It is furnished in strip and foil form and provides optimum initial and maximum permeabilities for electromagnetic shielding applications. It is a high purity, soft magnetic alloy produced by powder metallurgy techniques. 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-191. Producer or source: Spang Industries Inc..