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.INCONEL Alloy 625LCF* is a special alloyed, melted, and processed version of INCONEL alloy 625 (See Alloy Digest Ni-121) to optimize low-cycle and thermal fatigue up to 1200 F(650 C).