Materials
There are a lot of different copper and brass grades as well as designation standards that are used depending on countries, company traditions, and engineering practices. Common materials include Copper, Oxygen-free Copper, Phosphorized Copper, Silver containing Copper, Cadmium Copper, Beryllium Copper, Brass, Leaded Brass, Tin Brass, Phosphor Bronze, Aluminium Bronze, Silicon Red Brass, Leaded Tin Bronze, etc.
Dimensions
Outside Diameter, Inside Diameter, Wire Diameter, Free Length, and Extended Length, The Free Length is the length of a spring in the unloaded position (measured from inside the end loops). The Extended Length is the length at full-rated extension.
Ends
Ends for compression springs:
There are four primary end-type configurations for compression springs. The spring end may be ground or unground, and the end coils may be open or closed.
Extension springs with hook end:
The hook types include Machine Hooks, Cross Over Center Hooks, Side Hooks, Extended Hooks, and Double Loop Hooks.
Application
Like other copper alloys its nonmagnetic properties are ideal for medical or industrial applications as it is commonly used in MRI equipment or in directional drilling equipment. Its conductive properties make it an ideal candidate for a variety of different industries including marine, electronics, medical, Oil & Gas.
