AISI 50B60 is a low-chromium alloy steel with boron added to increase its hardenability. It develops high hardness and strength and is suitable for springs and axle shafts. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: SA-320. Producer or source: Alloy steel mills and foundries.