Classification process: Spring steel wire can be classified according to the manufacturing process, such as raw spring steel wire (without lead bath quenching treatment before drawing), lead hardened spring steel wire, galvanized spring steel wire, oil hardened spring steel wire, etc.

Product information:

General characteristics of spring coil wire

Strength: The strength of the spring steel wire is different according to the variety, standards and specifications, and the tensile strength grade can be in the range of 1000-3000 mpa. Spring steel wire needs to have sufficient strength to meet the requirements of bearing various loads in the elastic range, for carbon black spring coil steel wire, if there is this special type, its strength will also be in this general strength range, the specific strength depends on its material composition and manufacturing process.

Elastic limit: The spring is used within the elastic range, should return to the original position after unloading, and the steel wire should have a high elastic limit. When making a spring, a higher elastic limit means that the resulting spring holds its shape better and produces effective elastic deformation under load.

Toughness: The spring usually works under alternating stress for a long time, and it needs to have a certain toughness to withstand the impact energy, although the spring wire does not necessarily have a high plasticity, but at least it must be able to withstand the plasticity of the spring forming, and enough toughness to withstand the impact energy.