Surface Treatment Specs: nickel_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 | corrosion resistance salt spray hrs (hr) | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| nickel_plating | bright_nickel_electrolytic | 0.15-0.25 | 200 | bright mirror | 250 | 180 | 200 | Bright sulfamate or Watts nickel; used for decorative + mild corrosion protection; base for chrome; high internal stress in bright Ni | 260 | electroplating | ASTM B689; QQ-N-290; AMS 2403 | steel, copper, aluminum (with strike), zinc die cast | 0.002 | 50 | 0.0002 | 5 | 15 | moderate |
| nickel_plating | electroless_nickel_high_phos | 0.10-0.15 | 1,000 | bright | 550 | 450 | 500 | 10–13% phosphorus; best corrosion resistance; amorphous (non-magnetic); low as-deposited hardness but excellent salt spray >1000 hr; used in oil/gas, chemical processing | 290 | electroless | ASTM B733 Type V; MIL-C-26074 | steel, aluminum, copper, beryllium copper | 0.003 | 75 | 0.0005 | 12 | 25 | moderate-high |
| nickel_plating | electroless_nickel_mid_phos | 0.10-0.15 | 500 | semi-bright | 700 | 550 | 600 | 5–9% phosphorus; hardest as-deposited EN grade; can be hardened to 900–1000 HV by 400°C bake (1 hr); excellent uniform deposit on complex geometry | 425 | electroless | ASTM B733 Type IV; MIL-C-26074; AMS 2404 | steel, aluminum, copper, titanium, plastics (after activation) | 0.003 | 75 | 0.0005 | 12 | 25 | high |
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