100 series (C10000) Coppers
This group comprises the pure coppers, those with a designated minimum copper content of 99.3% and 96%; which contain additional alloying elements such as beryllium, cadmium, cobalt, nickel, or iron for greater strength withoutdrastically reducing the electrical conductivity.

200 series (C20000) Brasses
These are the basic copper-zinc alloys which feature eease of manufacturing while still maintaining fair electrical characteristics.  These alloys are excellent for drawing and forming while still providing good strength.

300 series (C30000) Leaded Brasses
These are basically brass alloys that contain an additional 1% to 3% lead to provide greater ease of machining, blanking, shearing, sawing, and milling.

400 series (C40000) Tin Brasses
These alloys contain 1% to 2% of tin as well as copper and zinc to provide greater corrosion resistance while maintaining strength.  These alloys find many uses in electrical applications such as contact springs, fuse clips, terminals, and connectors.

500 series (C50000) Phosphor Bronzes
These alloys feature greater resistance to alternating or cyclic stress as required in applications for springs, diaphragms, bellows, and contacts.  This series also includes the leaded phosphor bronzes which provide better performance under load conditions found in sleeve bushings, bearings, thrust washers, ad engine and drive train applications.

600 series (C60000) Bronzes
This series includes the aluminum bronzes, which contain 2% to 3% of aluminum for strength while maintaining formability.  These alloys are often used for wear plates, bushings, bearings, and hydraulic valve parts.  Alo included in this group are the silicon bronzes which are suitable for types of welding in addition to having good hot forming an cold working properties.  Other miscellaneous copper-zinc alloys are also included within this series.

700 series (C70000) Nickel Silvers
These special alloys of copper, nickel, and sometimes lead, have high strength and increased resistance to corrosion along with good formability.