Joinchat
Overview
Joinchat, from LIN HARDWARE in Xiamen, Fujian. The listing gives black oxide (blackening) Black Zinc Plating, process type Chemical Conversion Coating and chemical conversion coating Electroplating (Additive Layer).
Technical specifications
| Black Oxide (Blackening) | Black Zinc Plating |
|---|---|
| Process Type | Chemical Conversion Coating |
| Chemical Conversion Coating | Electroplating (Additive Layer) |
| Base Material | Ferrous metals (steel, iron) |
| Coating Thickness | Relatively thick (1-10 micrometers), crystalline |
| Wear/Abrasion Resistance | Good to Excellent (especially Manganese Phosphate [^6]) |
| Hydrogen Embrittlement | Low risk (if pickling minimal) |
| Cost | Moderate |
| Low to Moderate | Moderate to High |
| Typical Applications | Firearms, automotive, fasteners [^4], gears, bearings |
| Cost vs. Performance | Black phosphate |
