Triple-Layer Galvanic Plating (Cu-Ni-Cr) on Solid Extruded Brass Bodies
Engineering Overview: Technical breakdown of triple-layer galvanic plating (Copper + Nickel + Hard Chrome) on solid brass cylinders for coastal luxury villas.
Technical & Engineering Specifications
| Hardness | 950 HV Vickers Micro-Hardness |
|---|---|
| Standard | EN 1670 Grade 5 Marine Plating |
| Salt Spray | ASTM B117 > 480 Hours (Class 5) |
| Plating Stack | Cu (5um) + Duplex Ni (20um) + Hard Cr (1.0um) |
Triple-Layer Galvanic Stack
Marine architecture requires combining hard chrome scratch resistance with multi-layer corrosion defense.
Plating Sequence
- Copper Strike ($5\text{ μm}$): Seals brass microporosity.
- Semi-Bright & Bright Nickel ($20\text{ μm}$): Creates galvanic potential step.
- Hard Chromium ($1.0\text{ μm}$): Delivers 950 HV diamond hardness.
Frequently Asked Engineering & Selection Questions
Q1: What are the primary material characteristics of this finish?
Technical breakdown of triple-layer galvanic plating (Copper + Nickel + Hard Chrome) on solid brass cylinders for coastal luxury villas.