Surface Treatment Specs: gold_plating
Electroplating and surface treatment specifications covering thickness ranges, hardness, corrosion resistance (salt spray hours), wear resistance, operating temperature limits, substrate compatibility, applicable standards, and finish appearance. Processes include zinc plating (clear/yellow/black chromate), zinc-nickel, bright electrolytic nickel, electroless nickel (mid/high phosphorus), hard chrome (hexavalent and trivalent), decorative chrome, tin, silver, gold, cadmium, anodizing (Type I/II/III per MIL-A-8625), zinc/manganese phosphate, black oxide, stainless steel passivation, and electropolishing.
| treatment category | treatment variant | coefficient of friction | finish appearance | hardness max HV (HV) | hardness min HV (HV) | hardness typical HV (HV) | notes | operating temp max C (C) | process type | standard | substrate compatibility | thickness max in (in) | thickness max um (um) | thickness min in (in) | thickness min um (um) | thickness typical um (um) | wear resistance |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| gold_plating | gold_hard_plated | 0.10-0.18 | gold/yellow | 200 | 130 | 160 | Hard gold (Co or Ni alloyed); connector grade per MIL-DTL-45204 Type II Class 1 (1.27 µm); 99.7% purity minimum; corrosion-proof; excellent contact resistance | 200 | electroplating | ASTM B488; MIL-DTL-45204D; AMS 2422 | copper, nickel, kovar | 0.0002 | 5 | 0.00002 | 0.5 | 1.27 | low |
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