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.BERYLCO Alloy 41C is a highly castable, air-melting nickel-base alloy; it is precipitation-hardenable to high strength and hardness. It exhibits excellent resistance to wear, corrosion and oxidation. Alloy 41C (formerly called Berylco CR-1, Alloy Digest, September 1956, Ni-27) is the standard beryllium-nickel casting alloy that has been in use for over 40 years. Its many uses include tooling for plastics, glass-mold tooling, fuel-pump impellers, cores for Teflon molding and deep sour-well drilling components.