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.NIKROTHAL 6 is a nickel-chromium-iron electrical-resistance alloy for use in appliances and industrial furnaces. Its maximum recommended operating temperature is 1125 C (2055 F). It is highly suitable for heating elements in domestic appliances. Note: This revision was made because in the original digest of October 1980 the data in Table 2 are not for Nikrothal 6.