Surface Treatment Specs: passivation
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| passivation | passivation_stainless_steel | no change | 500 | natural SS finish | not applicable | not applicable | not applicable | Removes free iron and sulfides with nitric or citric acid; restores native Cr2O3 passivation layer; zero thickness change; mandatory for medical/aerospace/food contact SS | 600 | chemical treatment | ASTM A967; AMS 2700; MIL-DTL-14072 | 300-series SS, 400-series SS, 17-4PH, 15-5PH | 0 | 0 | 0 | 0 | 0 | none (electrochemical) |
This is a sample. Search the full surface treatment specs dataset and 300+ more by creating a free account and accessing the database.
Get started for FREE