Spring is a kind of mechanical part which uses elasticity to work. Generally made of spring steel. It is widely used in machines and meters to control the movement of parts, mitigate impact or vibration, store energy and measure force. The types of springs are complex and varied, mainly including compression spring, tension spring, spring and so on.

    Spring material type

    Spring steel (SUP) is the most widely used spring material, and other steel or copper alloy wires listed in table a are used according to the purpose.

    1. Carbon steel and alloy steel: when making springs, metal elements such as silicon, manganese, chromium, vanadium and molybdenum are often added to the steel to increase the elasticity and fatigue limit of the springs and make them impact resistant.