After proper heat treatment or cold-drawn hardening, high carbon steel wire has high strength and hardness, high elastic limit and fatigue limit (especially notch fatigue limit), and good cutting performance, but poor welding performance and cold plastic deformation ability.

Because of the high carbon content, water quenching is easy to crack, so the use of double liquid quenching (water quenching + oil cooling), small section parts are mostly used oil quenching.This kind of steel is generally used after quenching by medium temperature tempering or normalizing or in the state of surface quenching.Mainly used in the manufacture of springs and wear-resisting parts.Carbon tool steel wire is a kind of high carbon steel wire which does not add alloying elements, and it is also a kind of steel with low cost, good cold and hot workability and wide range of use.Spring steel wire includes high carbon steel wire, high carbon steel wire is one of the spring steel wire.Anyone who can do spring can be called spring wire, and high carbon is high carbon content.

Features: high strength and hardness, high elastic limit and fatigue limit (especially notch fatigue limit), cutting performance is acceptable, but the welding performance and cold plastic deformation ability is poor