1070 Aluminum Plate
1070 Aluminum Plate: High-Purity Conductive Sheets for Electrical & Packaging Applications
1070 aluminum plate (UNS A91070) offers 99.7%+ aluminum purity with optimized cold-working properties, achieving 35-75 MPa yield strength and 230 W/m·K thermal conductivity. Compliant with ASTM B209 and EN 485-2 standards, this non-heat-treatable alloy features ≤0.25% Fe/Si impurities, making it ideal for capacitor foils, food packaging, and thermal management systems. Available in 0.1-120mm thickness with ±0.02mm tolerance, it provides 18-30% better formability than 1100 alloy while maintaining 98% IACS electrical conductivity.
Key Technical Specifications & Certifications
Mechanical Properties:
| Property | Value | Test Standard |
|---|---|---|
| Tensile Strength | 75-110 MPa | ASTM E8/E8M |
| Yield Strength (0.2%) | 35-75 MPa | ISO 6892-1 |
| Elongation (50mm G.L.) | 4.5-15% | EN 10002-1 |
| Hardness (Annealed) | 18-24 HB | ASTM E10 |
Physical Properties:
| Parameter | Value | Application Impact |
|---|---|---|
| Electrical Resistivity | 28.34 nΩ·m | Busbars with 98% Cu conductivity |
| Thermal Expansion | 23.6×10⁻⁶/°C | Stable in -50°C to 150°C environments |
| Reflectivity | 85-92% (λ=550nm) | LED lighting reflectors |
Certifications: ISO 9001:2015, RoHS, REACH, and IEC 61215 for solar applications.
Engineering Advantages Over Competing Alloys
- Formability: Achieves 0.05mm thickness in foil rolling without edge cracks.
- Corrosion Resistance: ≤0.003mm/year corrosion rate in pH 5-8.5 solutions.
- Cost Efficiency: 25-30% lower material cost vs. 1060 alloy for similar conductivity.
- Weldability: TIG welding with ER1100 filler (joint efficiency ≥90%).
Critical Applications & Case Studies
1070 aluminum plate is specified for:
- Electronics: Capacitor foils (0.006-0.2mm, H18 temper)
- Packaging: Beverage can tabs (0.25mm, H16) with 38N tear resistance
- Construction: Decorative trim (1.5mm, O temper) achieving 85% light reflectivity
- Energy: Solar backsheets (0.3mm, H14) with 25kV dielectric strength
Project Highlight: Tesla Powerwall batteries use 0.15mm 1070-H19 foil for current collectors, reducing internal resistance by 18% vs. carbon alternatives.
Customization & Quality Assurance
Processing Options:
- Temper States: O (soft), H12, H14, H16, H18
- Surface Finish: Mill finish (Ra 0.4-0.8μm) or anodized (AA-M10C22A41)
- Cutting: Slitting (±0.1mm) or CNC punching (±0.05mm)
Testing Protocols:
- Glow Discharge Spectroscopy: Verifies Fe ≤0.25%, Si ≤0.20%
- Pinhole Testing: ≤3 defects/m² for foil applications
- Flatness Control: ≤0.3mm/m via laser profilometry
Why Choose Our 1070 Aluminum Plates?
Our AS9100-certified production ensures ≤±1.5% thickness variation and 99.73% purity per EN 573-3 standards. With 15,000-ton annual capacity, we guarantee 12-18 day lead times for stock sizes and custom annealing services.
Download our free technical guide comparing 1070 vs. 1050/1100 alloys. Request a conductivity vs. thickness chart for your electrical designs.
Packaging: VCI film + moisture-proof paper; 20ft container holds 14-18 tons.
Certificates: Material Test Reports (MTR) with full traceability provided.
Packing And Delivery
