AISI 1022 is a carbon steel of relatively high manganese content which provides increased hardenability in all applications and increased hardness and strength in uncarburized uses and in the core of carburized components. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on forming, heat treating, machining, joining, and surface treatment. Filing Code: CS-54. Producer or source: Carbon steel mills.