Surface Treatment Specs: dissimilar_metal_protection_chromium_moly_tungsten
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_chromium_moly_tungsten | rank1_paint_or_resin | true | Rank 1 (most protective): Apply paint or resin coating system to reduce corrosion at voids in chromium plating, or staining of molybdenum or tungsten surfaces | organic coating | (none specific) | chromium (plate), molybdenum, tungsten |
| dissimilar_metal_protection_chromium_moly_tungsten | rank2_bare_sealed | true | Rank 2 (least protective listed): Normally may be used bare for electrical wear resistance or thermal conducting purposes; seal faying edges to mitigate crevice attack | bare metal with sealed faying edges | (none specific) | chromium (plate), molybdenum, tungsten |
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