View Sample Alloy Digest Data Sheet (PDF)Since 1952, Alloy Digest has been the leading reference for materials property data on metals and alloys used throughout the world. Featuring graphs, charts and tables, these sheets give facts and figures on composition or characterization, physical and mechanical properties, heat treatment, and machinability.METCO 447 is a nickel-aluminum-molybdenum powder developed to produce self-bonding, low-shrink, moderately hard coatings. It is recommended for resistance to wear and particle erosion, and for the buildup and salvage of both machinable and grindable carbon steels. It is applied in a one-step, single-coat buildup generally by ThermoSpray,* but it may be applied by plasma spraying.