The work horse of the non-ferrous spring industry.  

Good Strength, fair electrical conductivity and a moderate price.

Grade A stands between Brass and Beryllium Copper in properties: temperature resistance, fatigue resistance and cost.  It gains its spring temper from cold work, and is furnished in whatever temper is appropriate for your application

Similar non-ferrous spring applications as   Grade A.

Slightly higher strength with a given formability.

Higher Tin content allows Grade C to work-harden faster and thus develop a higher tensile strength with the same degree of cold work

Fair strength, good electrical conductivity at an economical price.

No Zinc to cause dezincafication.

Better conductivity than the Brasses.  A better alloy for hot solder or hot tin coating.