Gold Plating

We offer electro-plated gold that conforms to military and aerospace specification. Gold is generally used in electrical applications (such as connector pins) where low contact resistance is critical. Moreover, Gold is a noble metal, and as such is not subject to oxidation.

 

We have recently added a high capacity vibratory line that allows for plating larger parts while maintaining the advantage of more uniform plating. This process allows for better coverage of inside surfaces and gentler processing of delicate parts.

There are various requirements for minimum purity and hardness, but all our gold processes:

  • Are High Purity – 99%+
  • Are Readily Solderable
  • Have Low Contact Resistance

Specializing in gold plating for aerospace and industrial uses


Our capacity ranges from micro-contacts up to parts 30 inches in diameter. We offer rack/wire as well as conventional and vibratory barrel plating.


Commonly used specifications:


MIL-G-45204/MIL-DTL-45204


  • Type I - 99.7% minimum purity
  • Type II – 99.0% minimum purity
  • Type III – 99.9% minimum purity
  • Grade A - 90 knoop maximum hardness
  • Grade C - 130 to 200 knoop hardness
  • Grade D - 201+ knoop hardness







ASTM B488


  • Type I - 99.7% minimum purity
  • Type II – 99.0% minimum purity
  • Type III – 99.9% minimum purity
  • Grade A - 90 knoop maximum hardness
  • Grade C - 130 to 200 knoop hardness
  • Grade D – 201+ knoop hardness


 

AMS 2422


  • 99.0% minimum purity
  • 000050" minimum thickness on significant surfaces



General Guidelines:


  • Copper based alloys should be plated with a nickel under plate as a diffusion barrier
  • Gold plate over a silver base material or plate is not recommended due to silver diffusion