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.AISI 1522 is a low-carbon steel that combines good workability, good machinability and good weldability. It is used in the hot-rolled, annealed, normalized or water-quenched-and-tempered condition for a variety of applications. It also is used for parts case-hardened by carburizing. It has a relatively high manganese content; this provides increased hardenability which is reflected in all uses and gives increased strength and hardness in the core of carburized parts and in sections and components that have not been carburized.