Technical guide to electroplating brass components: Electro-Nickel, Chrome, Tin, Silver, Gold, Natural Bright Passivation, and Salt Spray Corrosion Tests.
| Plating Type | Thickness Range | Standard Specification | Salt Spray Resistance (ASTM B117) | Key Functional Benefit |
|---|---|---|---|---|
| Electro-Nickel (Bright) | 3 – 15 μm | ISO 1456 / ASTM B689 | 48 – 96 Hours | Corrosion protection, decorative luster, wear resistance. |
| Electroless Nickel (ENP) | 5 – 25 μm | MIL-C-26074E | 100 – 240 Hours | Uniform coating inside deep bores, high hardness (500+ HV). |
| Tin Plating (Bright / Matte) | 5 – 12 μm | ASTM B545 | 24 – 48 Hours | Excellent solderability for electrical contacts & terminals. |
| Silver Plating | 3 – 10 μm | ASTM B700 | 24 Hours | Maximum electrical conductivity for high-voltage switchgear. |
| Natural Acid Passivated | Clean Metal Surface | ASTM B600 | 24 Hours | Removes free iron contamination, bright golden finish. |
