AISI 1330 is a through-hardening low-alloy steel for applications where medium hardenability and strength with low to medium toughness are sufficient. It may be used in the unhardened condition or after quenching in oil or water followed by tempering. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: SA-303. Producer or source: Alloy steel mills and foundries.