Silver plating (electroplating) - Silver per QQ-S-365C

Silver Plating - Thickness

• 0.0003" for articles such as terminals which are to be soldered
• 0.0005" for corrosion protection of nonferrous basis metals or for increasing the electrical conductivity of basis metals
• 0.0050"-0.0100" for electrical contacts, depending on pressure, friction and electrical load

Silver Plating - Corrosion Protection

For applications where corrosion protection is important, the use of silver plating with an electrodeposited nickel undercoat is advantageous.

Silver Plating - Underplate Recommendations

Silver plating on steel, zinc and zinc-based alloys should have an undercoat of nickel over copper.

Silver plating on copper and copper alloys should have a nickel undercoat. Copper and copper alloy material on which a nickel undercoat is not used, and other base metals where a copper undercoat is employed, should not be used for continuous service at a temperature in excess of 300 degrees F (149 degrees C). Adhesion of the silver plating is adversely affected because of the formation of a weak silver and copper intermetallic layer.