The 1050-H16 aluminum plate for photovoltaic module back sheets is a specialized commercial-grade alloy containing a minimum of 99.5% pure aluminum. Manufactured to a precise 1.2 mm thickness, this material provides structural support and environmental protection for solar panels.
The plate features a mill finish coupled with a 15 μm anodized layer, specifically engineered to withstand prolonged environmental exposure. In standardized environmental evaluations, this configuration successfully passed the rigorous 3000-hour damp-heat test specified by IEC 61215 protocols.
The 1050 H16 temper indicates a three-quarter hard, strain-hardened state, offering optimal mechanical stability for exterior installations. Commercial developers looking for a reliable aluminum plate supplier frequently select this specification to ensure long-term weathering resistance and operational efficiency in various standardized solar energy arrays.
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1. Primary Uses and Applications of 1050-H16 Aluminum Plate
This specialized aluminum material functions effectively across various standard solar power installations, providing reliable structural backing and environmental protection for everyday photovoltaic panel configurations.
- Residential Rooftop Solar Arrays: Standard home solar panels utilize this 1.2 mm thick aluminum back sheet to protect internal photovoltaic cells from localized moisture. The material effectively prevents water ingress during heavy residential rainstorms while maintaining a lightweight profile that avoids overloading standard domestic roof trusses.
- Commercial Building Microgrids: Retail stores and office buildings deploy flat-roof solar arrays that rely on these anodized plates for extended durability. The 15 μm surface treatment resists atmospheric pollutants commonly found in urban commercial zones, maintaining module integrity in environments where temperatures fluctuate between -20°C and 45°C.
- Urban Solar Carports: Public parking structures integrate photovoltaic modules directly into their overhead canopies, utilizing the H16 temper's mechanical rigidity. The aluminum back sheet withstands moderate physical impacts from wind-blown debris, ensuring continuous energy generation for charging stations below without requiring frequent structural maintenance or panel replacement.
- Off-Grid Cabin Power Systems: Remote recreational cabins depend on localized solar panels backed by 1050-H16 aluminum for independent electricity generation. The 99.5% pure aluminum construction guarantees exceptional corrosion resistance in humid, forested environments, reliably powering essential small appliances and interior lighting systems without degradation from persistent morning dew.
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2. Key Benefits and Advantages of 1050-H16 Aluminum Plate
The physical properties and specialized surface treatments of this aluminum alloy present distinct functional advantages for standard solar panel manufacturing, focusing heavily on environmental endurance.
- Superior Weathering Resistance: The material is specifically engineered to endure severe environmental stress over extended periods. Validated by passing the IEC 61215 3000-hour damp-heat test, the combination of the commercial purity aluminum and the 15 μm anodized coating prevents critical moisture penetration and halts corrosive degradation.
- Optimized Thermal Dissipation: Photovoltaic cells generate significant excess heat that must be managed to maintain electrical conversion efficiency. The 1050 alloy provides exceptional thermal conductivity, rapidly drawing heat away from the active solar components and dissipating it into the ambient air, keeping module operating temperatures below 65°C.
- Enhanced Structural Rigidity: The strain-hardened H16 temper delivers a minimum yield strength of approximately 105 MPa. Combined with the precise 1.2 mm thickness, this structural profile prevents panel warping under static snow loads or high wind pressures, maintaining the exact geometric alignment required for maximum solar exposure.
- Consistent Anodic Protection: Applying a uniform 15 μm anodized layer over the standard mill finish generates a hardened aluminum oxide barrier. This surface modification physically blocks chemical interactions with environmental pollutants and airborne salts, significantly extending the practical operational lifespan of the solar module backsheet.
Aluminum tread plate 1050 Chemistry Composition
| Alloy | Si | Fe | Cu | Mn | Mg | Cr | Ni | Zn | Ti | Al |
|---|---|---|---|---|---|---|---|---|---|---|
| 1050 | 0.25 | 0.4 | 0.05 | 0.05 | 0.05 | - | - | 0.05 | 0.03 | 99.5 |
Aluminum tread plate 1050 Mechanical Properties & Features
| Aluminum Tread Plate | Anti –tensile strength N/m㎡ | Elongation rate(%) | Hardness | surface |
|---|---|---|---|---|
| 1050-O | 65 - 95Mpa | 35 | 19HB | bright |
| 1050 H12 | 85 - 125Mpa | 18 | 23HB | bright |
| 1050 H14 | 105 - 145Map | 7 | 26HB | bright |
| 1050 H16 | 120 - 160Map | 4 | 30HB | bright |
| 1050 H18 | above 140 Map | 2 | 35HB | bright |
1050 Aluminum Specifications Available
| Product Type | Specification | Details |
|---|---|---|
| General Information | Alloy | 1050 |
| Temper | O, H12, H14, H16, H18, H24, H26, H28 | |
| Forms | Sheet, plate, strip, coil, circle & disc | |
| 1050 Aluminum Sheet & Plate | Thickness | 0.2 mm – 260 mm |
| Sheet: 0.2 – 6.0 mm | Plate: 6.0 – 80 mm | Extra-thick plate: 80 – 260 mm | ||
| Width | 500 – 2650 mm (standard: 1000 / 1250 / 1500 / 2000 mm) | |
| Length | Customized (standard: 2000 / 2500 / 3000 / 6000 mm) | |
| Tolerance | Thickness ±0.02 – ±0.15 mm (per EN 485-4) |
Tolerance and Surface Specifications
| Metric | Allowable Standard |
|---|---|
| Thickness Tolerance | ±0.03 mm |
| Width/Length Tolerance | +2.0 mm / -0.0 mm |
| Anodized Layer Thickness | 15 μm (±2 μm variance) |
| Diagonal Difference | Maximum 3.0 mm |
3. Delivery, Inspection Standards, and Packaging
- Strict Dimensional Tolerances: Each plate is cold-rolled and cut to maintain a highly precise thickness tolerance of ±0.03 mm. Width and length measurements adhere to a +2.0 mm upper limit with zero negative tolerance, ensuring a perfect mechanical fit during automated aluminum frame assembly processes.
- Standardized Visual Inspection: Prior to shipment, the aluminum undergoes automated optical scanning according to ASTM B209 standards. Inspectors verify that the 15 μm anodized surface remains entirely free of mechanical scratches, rolling marks, and oil stains, which could otherwise compromise the material's weatherproofing capabilities.
- Secure Export Packaging: To prevent oxidation and physical damage during transit, the plates are interleaved with neutral craft paper. The stacks are subsequently wrapped in high-density polyethylene plastic, secured with steel strapping, and mounted on fumigated wooden pallets to comply with international shipping moisture requirements.
- Certified Delivery Documentation: Every commercial shipment includes a comprehensive mill test certificate verifying the exact chemical composition and mechanical properties. This documentation proves compliance with GB/T 3880 requirements, providing the purchasing photovoltaic module manufacturer with legally binding assurance of the alloy's structural specifications.
4. Product Quality Testing
- Damp-Heat Exposure Testing: According to IEC 61215 protocols, the plate undergoes a 3000-hour sustained test in an environmental chamber set at 85°C and 85% relative humidity. Passing this specific evaluation verifies that the 1.2 mm material will not delaminate or corrode in highly humid, tropical installation environments.
- Mechanical Tensile Verification: Laboratory technicians utilize universal testing machines to pull standard samples to their breaking point. This process confirms the H16 temper delivers the required yield strength between 105 MPa and 145 MPa, ensuring the backsheet can withstand localized mechanical stresses without permanent plastic deformation.
- Anodic Coating Measurement: Quality control personnel employ eddy current testing devices to measure the non-conductive oxide layer precisely. They must verify the coating thickness maintains the specified 15 μm depth with a tight ±2 μm variance, guaranteeing uniform environmental protection across the entire surface area of the plate.
- Thermal Cycling Analysis: The aluminum samples are subjected to rapid temperature fluctuations ranging from -40°C to 85°C. This cyclic testing simulates extreme day-to-night environmental shifts, confirming that the thermal expansion and contraction rates remain within acceptable limits to prevent micro-cracking in the anodized exterior layer.
Conclusion
The 1050-H16 aluminum plate functions as a highly dependable structural and protective component for photovoltaic module back sheets. Engineered to a 1.2 mm thickness and featuring a 15 μm anodized surface, this commercially pure alloy demonstrates exceptional weathering resistance, successfully passing the stringent 3000-hour damp-heat test under IEC 61215 protocols.
The H16 temper provides necessary mechanical stability, yielding a strength of 105 to 145 MPa to resist static loads and environmental pressures. Strict adherence to ASTM B209 and ±0.03 mm dimensional tolerances ensures smooth integration into automated assembly lines. Procuring this material from a certified supplier guarantees consistent solar panel durability and sustained energy conversion efficiency.
