AISI C1030 a medium-carbon steel used in the hot-rolled, normalized or water quenched and tempered condition for general purpose engineering and construction. It provides medium strength and toughness at low cost. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: CS-34. Producer or source: Carbon and alloy steel mills.