UNS No. G46260 is a carburizing grade of alloy steel. Both the core and the carburized case have relatively good mechanical properties. This steel is used for producing case-hardened parts such as gears, pinions, chuck jaws and camshafts. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: SA-405. Producer or source: Alloy steel mills and foundries.

AISI 4820 is a low-carbon carburizing steel containing nominally 3.5% nickel and 0.25% molybdenum. It is ideal for uses that require a strong, tough core along with a highly wear-resistant carburized case. In addition, it offers a good combination of strength and low-temperature toughness for non-carburized applications. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SA-311. Producer or source: Alloy steel mills and foundries.

AISI 4650 is an oil hardening, medium-carbon alloy steel having high mechanical properties, endurance limit and shock resistance. This datasheet provides information on composition, hardness, and tensile properties as well as fracture toughness. It also includes information on forming, heat treating, machining, and joining. Filing Code: SA-121. Producer or source: Alloy steel mills and foundries.

AISI 4615 is a low-carbon, nickel-molybdenum alloy steel of the carburizing grade, recommended for applications where high toughness and excellent wear resistance are required. This datasheet provides information on composition, hardness, and tensile properties as well as fracture toughness. It also includes information on low temperature performance and corrosion resistance as well as heat treating, machining, and joining. Filing Code: SA-112. Producer or source: Alloy steel mills and foundries.

IMPACTO is a low-carbon, nickel-molybdenum alloy steel of the carburizing grade, recommended for applications where high toughness and excellent wear resistance are required. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on low temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SA-88. Producer or source: Atlas Steels Company.

AISI 4640 is an oil hardening nickel-molybdenum alloy steel having good heat treated properties, toughness and shock resistance. This datasheet provides information on composition, hardness, and tensile properties as well as fracture toughness. It also includes information on low temperature performance as well as forming, heat treating, machining, and joining. Filing Code: SA-67. Producer or source: Alloy steel mills and foundries.

AISI 4620 is a nickel-molybdenum case hardening steel recommended where high core toughness and shock resistance are required. This datasheet provides information on composition, hardness, and tensile properties as well as fracture toughness. It also includes information on low temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SA-63. Producer or source: Alloy steel mills and foundries.