1100 Aluminum Coil
1100 Aluminum Alloy: The Ultimate Pure Aluminum for Forming & Finishing
Premium-Grade Commercial Pure Aluminum (99.0%)
1100 aluminum (UNS A91100) represents the most cost-effective pure aluminum solution, offering exceptional formability and surface finishing capabilities. With 99.0% minimum aluminum content, this alloy delivers superior corrosion resistance (0.015 mm/year in salt spray tests) and 59% IACS conductivity – making it 15% more conductive than 3003 alloy while maintaining 35 MPa yield strength in annealed condition.
Key Advantages:
- Formability: 35% elongation in O-temper (ASTM B209)
- Surface Quality: Achieves Ra 0.4μm mirror finish
- Weldability: 95% joint efficiency with 1100 filler
- Cost Efficiency: 25% lower than 5052 alloy
Technical Specifications
1. Chemical Composition (ASTM B209 Standard)
| Element | Si+Fe | Cu | Mn | Zn | Al |
|---|---|---|---|---|---|
| % Range | ≤1.0 | 0.05-0.20 | ≤0.05 | ≤0.10 | ≥99.0 |
Trace elements: Ti≤0.05%, Others≤0.15% total
2. Mechanical Properties
| Property | Tensile | Yield | Elongation | Hardness |
|---|---|---|---|---|
| O-Temper | 90 MPa | 35 MPa | 35-45% | 23 HB |
| H18 Temp | 165 MPa | 150 MPa | 5% | 44 HB |
Test standards: ASTM E8 (tensile), ISO 6506-1 (hardness)
3. Physical Characteristics
| Parameter | Density | Melting Range | CTE | Conductivity |
|---|---|---|---|---|
| Value | 2.71 g/cm³ | 643-657°C | 23.6×10⁻⁶/°C | 222 W/m·K |
Custom Manufacturing Options
Available Forms:
- Thickness: 0.1-6mm foil (±0.005mm tolerance)
- Width: 20-1500mm (slitting available)
- Length: Custom coils up to 15,000mm
Surface Treatments:
- Mill finish (standard Ra 0.8-1.6μm)
- Mirror polishing (Ra ≤0.4μm)
- Anodizing (5-25μm thickness)
Processing Services:
- Deep drawing (LDR 2.0 achievable)
- Photo etching (±0.01mm precision)
- Embossing (0.1-1.2mm pattern depth)
Industrial Applications
Packaging Sector:
- Pharmaceutical foil (0.02-0.08mm)
- Food container lids (0.3-0.6mm)
- Flexible packaging laminates
Electrical Components:
- Busbar shunts (1.0-3.0mm)
- Transformer windings
- Capacitor housings
Decorative Applications:
- Signage panels (1.2-3.0mm)
- Architectural trim
- Reflector surfaces
Performance Comparison
| Property | 1100 | 1050 | 3003 |
|---|---|---|---|
| Al Content | 99.0% | 99.5% | 98.6% |
| Conductivity | 59% | 62% | 50% |
| Tensile (O) | 90 MPa | 85 MPa | 110 MPa |
| Cost Index | 1.0 | 1.1 | 1.3 |
Fabrication Guidelines
Forming Notes:
- Annealing required after 75% cold work
- Minimum bend radius: 1T (O-temper)
- Deep draw speed: 10-15 m/min
Welding Parameters:
- Process: GTAW preferred
- Filler: ER1100
- Gas: Pure argon (15 CFH)
Quality Assurance
- 100% eddy current testing
- Spectrometer verification
- Third-party inspection available
Certifications: ISO 9001, RoHS, FDA CFR 21
Packaging: VCI paper interleaved coils
Lead Time: 7-10 days for standard sizes
Why Choose 1100 Aluminum?
- Superior Formability: Ideal for complex shapes
- Excellent Finishing: Perfect for decorative applications
- Cost-Effective: Better value than 3003 alloy
- Reliable Supply: Consistent quality with mill certs
For reflector-grade material, specify surface roughness requirements (Ra 0.2-0.8μm available).
Packing And Delivery
