Satin Black Chrome (US10BC) Electroplating: Anti-Reflective Optical Properties
Engineering Overview: Technical breakdown of Satin Black Chrome (US10BC) electroplating on brass lock cylinders, evaluating optical non-reflection and wear life.
Technical & Engineering Specifications
| Hardness | 800 HV Micro-Hardness |
|---|---|
| Substrate | Solid Extruded H59 Brass |
| Salt Spray | ASTM B117 360 Hours |
| Finish Standard | Satin Black Chrome (US10BC / BHMA 622) |
| Layer Composition | Multi-Layer Nickel (15um) + Black Chrome (0.8um) |
Military & Minimalist Black Plating
Satin Black Chrome (BHMA 622 / US10BC) delivers a deep metallic matte-black finish with $<5%$ specular reflectivity.
Multi-Layer Galvanic Process
- Base Plating: 15 μm semi-bright nickel for corrosion barrier.
- Black Chrome Strike: Electrodeposited black chromium-oxide matrix (0.5–1.0 μm) containing metallic chromium and chromium oxides.
- Hardness: Delivers 750 to 850 HV hardness, superior to painted coatings.
Frequently Asked Engineering & Selection Questions
Q1: What is the difference between black chrome and black paint?
Black chrome is a hard electroplated metallic chromium-oxide layer (800 HV) that cannot peel, chip, or flake like surface paints.