3003 Aluminum Coil
3003 Aluminum Alloy: The Versatile Manganese-Enhanced Solution for Industrial Applications
Premium-Grade Workhorse Alloy with Superior Performance
3003 aluminum alloy (UNS A93003) represents the optimal balance between strength and formability in the 3000 series. With 1.0-1.5% manganese content, this alloy delivers 20% higher tensile strength than 1100 aluminum while maintaining excellent corrosion resistance (0.02 mm/year in salt spray tests). The H14 temper version achieves 150 MPa yield strength – 35% stronger than standard 1050 alloy while retaining 20% elongation capacity.
Key Advantages:
- Enhanced Strength: 95-145 MPa tensile range (ASTM B209)
- Thermal Performance: 190 W/m·K conductivity for heat exchangers
- Formability: 10% elongation in H14 temper
- Cost Efficiency: 15% lower than 5052 alloy
Technical Specifications
1. Chemical Composition (ASTM B209 Standard)
| Element | Mn | Cu | Fe | Si | Al |
|---|---|---|---|---|---|
| % Range | 1.0-1.5 | 0.05-0.20 | ≤0.7 | ≤0.6 | Balance |
Trace elements: Zn≤0.10%, Ti≤0.05%, Others≤0.15% total
2. Mechanical Properties
| Temper | Tensile (MPa) | Yield (MPa) | Elongation (%) | Hardness (HB) |
|---|---|---|---|---|
| O | 95-130 | 35-50 | 25-30 | 28 |
| H14 | 140-180 | 125-150 | 8-12 | 40 |
Test standards: ASTM E8 (tensile), ASTM E10 (hardness)
3. Physical Characteristics
| Parameter | Value | Unit |
|---|---|---|
| Density | 2.73 | g/cm³ |
| Melting Range | 643-654 | °C |
| CTE | 23.1×10⁻⁶ | /°C |
| Electrical Resistivity | 0.034 | μΩ·m |
Custom Manufacturing Options
Available Forms:
- Thickness: 0.2-6mm sheets (±0.05mm tolerance)
- Width: 600-1500mm standard (up to 3000mm custom)
- Length: 2000-8000mm (cut-to-size service)
Surface Treatments:
- Mill finish (standard Ra 0.8-1.6μm)
- Embossed patterns (0.3-1.2mm depth)
- Color anodizing (20-25μm thickness)
Processing Services:
- CNC punching (±0.1mm precision)
- Roll forming (for roofing applications)
- TIG welding (ER4043 filler recommended)
Industrial Applications
Construction Sector:
- Roofing/siding panels (0.7-1.2mm gauge)
- Ceiling systems (embossed finishes)
- Architectural cladding
HVAC Industry:
- Heat exchanger fins (0.3-0.5mm)
- Air conditioner evaporators
- Radiator components
Food Processing:
- Brewery tanks (3-6mm thickness)
- Conveyor systems
- Processing equipment
Quality Assurance
- 100% dimensional inspection
- Spectrometer verification
- Third-party certification available
Certifications: ISO 9001, ASTM B209, EN 573-3
Packaging: Wooden crates with edge protection
Lead Time: 10-12 days for standard orders
Comparative Analysis
| Property | 3003 | 1050 | 5052 |
|---|---|---|---|
| Tensile Strength | 145 MPa | 110 MPa | 210 MPa |
| Conductivity | 190 W/m·K | 222 W/m·K | 138 W/m·K |
| Corrosion Resistance | Excellent | Excellent | Good |
| Cost Index | 1.0 | 0.9 | 1.3 |
Why Choose 3003 Aluminum?
- Balanced Performance: Optimal strength-to-weight ratio
- Superior Workability: Excellent for forming and welding
- Proven Durability: 20+ year service life in construction
- Wide Availability: Multiple tempers and finishes
For architectural applications, specify PVDF coating options (25-30μm available).
Packing And Delivery
