Surface Treatment Specs: dissimilar_metal_protection_lead_tin_solder_indium
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 | dissimilar coupling context | notes | process type | standard | substrate compatibility |
|---|---|---|---|---|---|---|
| dissimilar_metal_protection_lead_tin_solder_indium | rank1_paint_or_resin | true | Rank 1 (most protective): Coat with paint or resin coating system; electroplated coatings should be flowed prior to applying coating system; coatings applied by hot-dipping, fusing, or electroplating | organic coating | (none specific) | lead, tin, solders, indium coatings |
| dissimilar_metal_protection_lead_tin_solder_indium | rank2_electroplate_to_minimize_potential | true | Rank 2 (least protective listed): Electroplate with other metal to reduce electropotential difference between metals being joined; for applications requiring direct metal contact for electrical purposes | electroplating to reduce potential difference | (none specific) | lead, tin, solders, indium (electrical contact applications) |
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