AA5052 H18 Gold Mirror Finish Reflective Aluminum Sheet
AA5052 H18 Gold Mirror Finish Reflective Aluminum Sheet: The Future of Premium Reflective Surfaces
When it comes to combining aesthetics with high performance, the AA5052 H18 Gold Mirror Finish Reflective Aluminum Sheet offers an unparalleled solution, especially for demanding applications seeking both rugged strength and luxurious appeal.
What Makes AA5052 H18 Gold Mirror Finish Aluminum Sheet Special?
AA5052—the alloy behind this superior reflective sheet—is an aluminum-magnesium series known for its excellent corrosion resistance and medium strength. Uniquely, the H18 temper indicates a fully hard state achieved through strain hardening without heat treatment, giving the sheet rigidity and stability.
The addition of a gold mirror finish elevates its utility to applications where both performance and visual impact matter, seamlessly integrating into architectural facades, automotive trims, electronics casings, and decorative panels. This gold-hued reflective surface isn't just about luxury—it's precision-engineered to maintain sustained reflectivity without sacrificing durability.
Essential Specifications and Parameters for AA5052 H18 Gold Mirror Reflective Sheet
| Parameter | Specification |
|---|---|
| Alloy | AA5052 |
| Temper | H18 (Fully Strain-Hardened) |
| Thickness Range | 0.3 mm to 6 mm |
| Width Range | Up to 1500 mm |
| Length | Custom cut lengths feasible |
| Surface Finish | Gold Mirror Finish, highly reflective (Mirror Grade Ra ≤0.1 µm) |
| Tensile Strength | 250-320 MPa |
| Yield Strength | 170-260 MPa |
| Elongation | ~3-4% (due to fully hardened temper) |
| Density | 2.68 g/cm³ |
| Thermal Conductivity | 138 W/mK |
Chemical Composition: Inside AA5052
At the heart of the alloy lies a perfect balance of elements enhancing performance without compromising finish:
| Element | Content Range (%) |
|---|---|
| Aluminum (Al) | 97.4 min |
| Magnesium (Mg) | 2.2 - 2.8 |
| Chromium (Cr) | 0.15 - 0.35 |
| Iron (Fe) | 0.4 max |
| Silicon (Si) | 0.25 max |
| Copper (Cu) | 0.10 max |
| Manganese (Mn) | 0.10 max |
| Zinc (Zn) | 0.10 max |
| Titanium (Ti) | 0.03 max |
The magnesium adds corrosion resistance to environments rich in chlorides, while chromium imparts strength and enhances surface durability against oxidation, crucial for the longevity of a reflective gold finish.
Industry Standards and Implementation
The AA5052 H18 sheets comply with many industrial standards ensuring consistent quality and reliability:
- ASTM B209 - For aluminum and aluminum-alloy sheet and plate materials
- AMS-QQ-A-250/12 - Aerospace grade aluminum alloy specifications
- EN 485 - Aluminum and aluminum alloys quality standards
- RoHS & REACH - All inclusive, maintaining environmental compliance in coatings
Applications: Where Function Meets Flair
This alloy's unique stress-hardened condition (H18) gives it a higher yield strength compared to softer tempers like O or H14, meaning thinner sections can match strength requirements without excessive weight. This makes it ideal in:
- Architectural Panels: Stunning gold-tone mirroring combined with exceptional weather resistance
- Automobile Trim & Motorcycle Parts: Durable, scratch-resistant reflective perl finish
- Consumer Electronics: Lightweight but robust protective covers or reflectors with sleek surfaces
- Lighting Fixtures & Solar Reflectors: High thermal conductivity enables efficient energy reflection for optimized performance
How Do We Achieve The Gold Mirror Finish?
Unlike typical anodizing or sprayed coatings, the gold mirror finish on the AA5052 H18 sheets is a multistep surface engineering process comprising:
- Electropolishing: To eliminate microscopic imperfections.
- Vacuum Metallization or PVD Coating: A thin, uniform gold-colored reflective metal layer applied.
- Ultra-Fine Buffing: To guarantee a Ra (surface roughness avergae) below 0.1 micrometers.
- Protective Clear Coating (optional): Adds scratch resistance while preserving optical properties.
The entire process upholds the metallic base’s structural integrity, ensuring that reflective brilliance goes hand-in-hand with mechanical and anti-corrosive performance.
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