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Aluminum 2024
| Category | Property | Metric | English | Notes |
|---|---|---|---|---|
| Chemical Composition | Aluminum (Al) | 90.7 - 94.7% | - | - |
| Copper (Cu) | 3.8 - 4.9% | - | - | |
| Magnesium (Mg) | 1.2 - 1.8% | - | - | |
| Manganese (Mn) | 0.3 - 0.9% | - | - | |
| Silicon (Si) | Max 0.5% | - | - | |
| Iron (Fe) | Max 0.5% | - | - | |
| Chromium (Cr) | Max 0.1% | - | - | |
| Zinc (Zn) | Max 0.25% | - | - | |
| Titanium (Ti) | Max 0.15% | - | - | |
| Other (each) | Max 0.05% | - | - | |
| Other (total) | Max 0.15% | - | - | |
| Physical Properties | Density | 2.78 g/cc | 0.1 lb/in³ | Typical |
| Melting Point (Solidus) | 502 °C | 935 °F | Typical | |
| Melting Point (Liquidus) | 638 °C | 1180 °F | Typical | |
| Mechanical Properties | Ultimate Tensile Strength | 469 MPa | 68,000 psi | Typical |
| Tensile Yield Strength | 324 MPa | 47,000 psi | Typical | |
| Elongation at Break | 19-20% | 19-20% | Varies by thickness | |
| Hardness (Brinell) | 120 | 120 | Typical | |
| Fatigue Strength | 138 MPa | 20,000 psi | 500,000,000 cycles | |
| Fracture Toughness (L-T) | 37 MPa·m½ | 33.7 ksi·in½ | Typical | |
| Thermal Properties | Thermal Conductivity | 121 W/m-K | 840 BTU-in/hr-ft²-°F | Typical at 77°F |
| Specific Heat Capacity | 0.875 J/g-°C | 0.209 BTU/lb-°F | - | |
| Coefficient of Expansion | 23.2 µm/m-°C | 12.9 µin/in-°F | 68-212°F range | |
| Electrical Properties | Electrical Resistivity | 5.82e-006 ohm-cm | 5.82e-006 ohm-cm | Typical at 68°F |
| Applications | - | Aerospace, Automotive, Defense, Industrial, Medical | - | High strength-to-weight ratio, good machinability, heat treatable |
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