CEN 46Cr2 and 46CrS2 are medium-carbon, 0.5% chromium direct hardening alloy steels that are also suitable for flame or induction hardening. These steels are low hardenability steels in the 0.45 to 0.50 mean carbon content classification. In general, they are used for gears and other parts requiring high hardness as well as strength and toughness. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on forming, heat treating, and joining. Filing Code: SA-871. Producer or source: European Committee for Standardization.