The O temper indicates that the aluminum is in its softest and most ductile state, achieved through annealing.
| Element | Percentage |
| Al | 95.4 |
| Cr | 0.05 - 0.25 |
| Cu | 0.1 max |
| Fe | 0.5 max |
| Mg | 3.5 - 4.5 |
| Mn | 0.2 - 0.7 |
| Zn | 0.25 max |
| Si | 0.4 max |
| Property | Metric | Imperial |
| Density | 2.66 g/cc | 0.0961 lb/in³ |
| Melting Point | 585-641°C | 1085-1185°F |
| Property | Metric | Imperial |
| CTE, linear 68°F | 23.8 µm/m-°C | 13.2 µin/in-°F |
| CTE, linear 250°C | 25.8m/m-°C | 14.3 µin/in-°F |
| Specific Heat Capacity | 0.9 J/g-°C | 0.215 BTU/lb-°F |
| Thermal Conductivity | 125W/m-K | 870TU-in/hr-ft²-°F |
| Solidus | 585°C | 1085 °F |
| Liquidus | 641°C | 1185 °F |
Fields of Use
Aerospace: Used in aerospace applications where parts require significant forming or bending, benefiting from the high ductility and formability of the annealed state.
Automotive: Applied in the automotive industry for components that need to be shaped into complex forms, such as body panels and structural parts requiring high ductility.
General Manufacturing: Used in various general manufacturing applications where ease of processing and forming is critical.
Deep Drawn Parts: Ideal for manufacturing deep-drawn components where the aluminum needs to undergo significant deformation without compromising integrity.
Typical Applications
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