AL Tech 609 is a silicon type of shock-resisting tool steel containing small additions of chromium, molybdenum and vanadium to increase hardenability, decrease grain size and improve mechanical properties. Because of its high elastic limit and fair ductility at comparatively high hardness, it has the ability to withstand heavy shocks before bending or breaking. Its many uses include shear blades, heavy-duty punches, pneumatic tools for severe service and machine parts subject to shock. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength as well as fracture toughness. It also includes information on forming, heat treating, and machining. Filing Code: TS-363. Producer or source: AL Tech Specialty Steel Corporation.