Overview of spring steel

The spring is used under impact, vibration or long-term cross stress, so spring steel is required to have high tensile strength, elastic limit, and high fatigue strength. In terms of technology, spring steel is required to have a certain degree of hardenability, not easy to decarburize, and good surface quality.

Carbon spring steel is a high-quality carbon structural steel with a carbon content range of 0.6%-0.9%.

Alloy spring steels are mainly silico-manganese steel grades, their carbon content is slightly lower, and their performance is mainly improved by increasing the silicon content; in addition, there are alloy spring steels of chrome, tungsten, and vanadium.