Silver plating include both good solderability and electrical contact characteristics, with high electrical and thermal conductivity. Other engineering applications include thermo-compression bonding, wear resistance of load-bearing surfaces, and spectral reflectivity.
QQ-S-365 Silver Plating, Electrodeposited (This cancelled specification is still in wide use.)
Grade A: With supplementary tarnish-resistant treatment (chromate treatment)
Grade B: Without supplementary tarnish-resistant treatment