Nitralloy 5Ni-2A1 is a precipitation hardening grade of nitriding alloy steel having high core hardness and toughness. It is recommended for parts requiring fatigue and wear resistance, such as gears, cams and shafts. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness, creep, and fatigue. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SA-224. Producer or source: Alloy steel mills and foundries.