High Carbon Steel Wire

High-carbon steel wire after appropriate heat treatment or cold-drawn hardening, with high strength and hardness, high elastic limit and fatigue limit (especially notched fatigue limit), cutting performance is still good, but welding performance and cold plastic deformation ability is poor. Due to the high carbon content, water quenching is prone to cracking, so more than double liquid quenching (water quenching + oil cooling), small cross-section parts more oil quenching. This type of steel is generally used after quenching by medium temperature tempering or normalizing or in the surface quenching state. Mainly used in the manufacture of springs and wear-resistant parts.