Carpenter Vacumet HyMu 800 is a vacuum melted nickel-molybdenum-iron alloy recommended as strip for laminations or torroids with a minimum permeability of 65,000 at 40 gauss in strip 0.010-0.001 inch thick. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on corrosion resistance as well as heat treating. Filing Code: Ni-123. Producer or source: Carpenter Steel Company.