Spring material selection, pay attention to the hardenability of steel. Whether the section of spring material is quenched and the degree of quenching is very important to the mass of spring.

Electric springs with the spring itself as a conductor or in the humidity variable conditions, such as water, water vapor working in the environment, usually copper and gold material.

In acid contact and other corrosive medium under the working spring, generally choose stainless steel or nickel alloy corrosion resistant materials. The spring used in general environmental media conditions, the use of ordinary spring steel, made of spring on the surface of its anticorrosion coating or electroplating method.

In the requirements of light, insulation, anti - collision, anti - corrosion and other special purpose springs, can choose reinforced plastic. At present, the most suitable plastic spring is thermosetting reinforced plastic GFRP with epoxy resin and phenolic resin as matrix. Vibration-proof rubber can also be used to make various types of rubber springs. When choosing the material, we should consider the use of the spring, the degree of importance, conditions of use, processing, heat treatment and economic factors. At the same time, also want to refer to the existing equipment in the use of the spring, choose to make a more suitable material.