Latrobe AGT Vac-Arc is a chromium-nickel-molybdenum alloy case hardening steel of superior cleanliness and uniform quality, recommended where high tensile and fatigue strengths are required with high shock resistance. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on forming, heat treating, machining, and joining. Filing Code: SA-130. Producer or source: Latrobe Steel Company.