Tri-Metal Plating

Alexandria Plating Industries, Inc. has developed a Tri-metal alloy consisting of copper, tin and zinc that is also referred to as “white bronze,” thanks to its color, which is often compared to bright/satin nickel or silver. The bright white finish of tri-metal plating can be used as an undercoat with palladium, palladium/nickel, silver or gold products or as a topcoat with those finishes.

Tri-metal or white bronze plating creates a non-toxic, non-magnetic deposit that is highly resistant to corrosion. This metal finishing application has low porosity and a low coefficient of friction. Lead free Tri-metal plating is outstanding for solder applications. Since white bronze plating is non-magnetic, it is often used for applications instead of nickel. It has excellent wear resistance. Because of its corrosion protection features, tri-metal is used in a variety of commercial and consumer industries:

Select Tri-Metal/White Bronze Plating Applications:

  • Microwave Filters
  • Radio Frequency (RF)
  • Electrical Contact
  • High Wear
  • Medical
  • Coaxial Connectors

For more information, please do not hesitate to contact us Alexandria Plating Industries, Inc or call 864-481-1320.

Quality is Longevity!

Our QC capabilities include ANSI/ASQC Z1.4, Fischerscope, Permascope X-Ray Flourescence, Computerized Controllers, Atomic Absorption, Salt Spray and Wet Laboratories.

Military & AMS Process Specifications

QQ-C-320, QQ-N-290, MPR-1059, AMS-C-26074, MIL-C-20218, AMS-2403, AMS-2404, AMS-2405, AMS-2406, ISO1458, ISO-4526 and many others.