Alloy comparison
1100 Aluminum vs 3003 Aluminum
pure Al vs Al-Mn formability
Side-by-side handbook properties for preliminary material selection. Green values mark the preferable metric for that row (higher strength, lower density, better fabrication rating).
1100 Aluminum
1xxx · ASTM B209 / B221
Commercially pure aluminum with excellent corrosion resistance and thermal conductivity. Soft and ductile — not a structural alloy.
Density
2.71 g/cm³
Yield
35 MPa
3003 Aluminum
3xxx · ASTM B209
Work-hardenable manganese alloy with good formability and corrosion resistance. Common for sheet metal and tanks.
Density
2.73 g/cm³
Yield
145 MPa
| Property | 1100 Aluminum | 3003 Aluminum |
|---|---|---|
| Density | 2.71 g/cm³ | 2.73 g/cm³ |
| Error if using 2.70 | +0.4% | +1.1% |
| Yield strength | 35 MPa | 145 MPa |
| Tensile strength | 90 MPa | 145 MPa |
| Elongation | 35% | 8% |
| Modulus E | 69 GPa | 69 GPa |
| Weldability | Excellent | Excellent |
| Machinability | Poor | Fair |
| Corrosion | Excellent | Excellent |
| 1 m² × 10 mm plate | 27.10 kg | 27.30 kg |
Quick selection guide
- Choose 1100 Aluminum when you prioritize heat exchangers and chemical equipment, and welding is acceptable.
- Choose 3003 Aluminum when you prioritize cooking utensils and chemical tanks (higher yield: 145 vs 35 MPa).
- Weight difference on a 1 m² × 10 mm plate: 0.20 kg (1100 Aluminum is lighter).