The selection basis of the mechanical performance and strength characteristics of spring products mainly includes: tensile strength, yield strength or flex ratio, hardness, thermal hard, sectional shrinkage, elongation rate, impact toughness, relaxation performance, fatigue strength, fracture toughness and so on.
Spring spring, opposite spring accounted for a larger proportion, different products on the material and technical requirements of a large difference. This kind of spring mainly towards both high strength and miniaturization direction.