Abstract 1010, C10E, and C10R are wrought low-carbon (carbon = 0.07–0.13%) non-alloy steels that are used in the as rolled, annealed, normalized, or cold worked condition. These steels are characterized by low strength, high ductility, excellent cold formability, and excellent weldability. Within the carbon range of these steel grades, strength and hardness will increase with increase in carbon content and with cold work. Such increases in strength are at the sacrifice of ductility or the ability to withstand cold deformation. 1010, C10E, and C10R are widely used for lightly stressed parts where cold formability is the primary requisite. They are less expensive than 1008 and can be used when the requirements for cold forming are less exacting. 1010, C10E, and C10R may also be used in the case hardened, nitrided, or nitrocarburized condition. This datasheet provides information on composition, physical properties, microstructure, hardness, and tensile properties. It also includes information on forming and heat treating. Filing Code: CS-265. Producer or source: Heat Treater's Guide.