Zinc Alloy Plating Thickness Calculator
Here's a comprehensive table summarizing key information about zinc alloy plating thickness:
Zinc Alloy Plating Thickness: All You Need to Know
| Aspect | Details |
|---|---|
| Common Thicknesses | 5µm, 8µm, 12µm, 25µm15 |
| Thickness Designation (ISO 2081) | Fe/Zn5, Fe/Zn8, Fe/Zn12, Fe/Zn255 |
| ASTM B633 Service Conditions | SC1 (Mild): 0.0002" (5.08µm) min SC2 (Moderate): 0.0003" (7.62µm) min SC3 (Severe): 0.0005" (12.7µm) min SC4 (Very Severe): 0.0010" (25.4µm) min4 |
| Environmental Recommendations | Dry, clean indoor: 5µm Clean indoor, minimal condensation: 8µm Indoors or covered outdoors: 12µm Outdoors: 25µm5 |
| Corrosion Protection | Thickness directly proportional to protection level5 |
| Coating Growth | Equal to thickness per surface1 |
| Maximum Thickness | Generally up to 25µm (1 mil)6 |
| Measurement Areas | Significant surfaces as designated on drawings2 |
| Thickness Control | Usually specified as minima, but range control possible1 |
| Effect on Component Size | Increases final size by coating thickness7 |
| Salt Spray Test Performance | 12µm or more can withstand over 500 hours7 |
| Appearance vs. Thickness | Thickness doesn't significantly affect appearance4 |
| RoHS Compliance | Dependent on chromate type, not thickness4 |
Remember that zinc plating thickness should be chosen based on the specific environmental conditions and requirements of the application5. For very corrosive environments, zinc plating alone may not be sufficient, and additional protective measures might be necessary.