ESC VAGS is an alloy steel capable of being heat treated to produce wide range of tensile strengths combined with good ductility and resistance to shock. It is recommended for high strength machine parts, gears, shafts, bolts, connecting rods, etc. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on heat treating, machining, and joining. Filing Code: SA-240. Producer or source: English Steel Rolling Mills Corporation Ltd.