2014 O Aluminum
2014-O aluminum alloy is a high-strength, heat-treatable alloy in the 2000 series, primarily composed of aluminum and copper, with small amounts of other elements like silicon, magnesium, and manganese. It is widely used in applications requiring high strength and good machinability.
The "O" designation indicates that the alloy has been annealed, resulting in a soft and ductile form that is suitable for further processing.
- Subcategory: 2000 Series Aluminum Alloy.
- Other Names/Standards: Aluminium 2014-O; UNS A92014; ISO AlCu4SiMg; BS H15 (UK); CSA CS41N (Canada); AA2014-O, DIN AlCuSiMn; NF A-U4SG (France)
Features of 2014 O Aluminum
- Machinability: In the "O" (annealed) condition, the material is soft and easy to process, which enhances its formability, especially during machining.
- Moderate Corrosion Resistance: While it offers decent corrosion resistance, it is generally recommended to use protective coatings in corrosive environments.
Applications of 2014 O Aluminum
- Aircraft Structures: 2014-O is commonly used in aerospace industries for wing spars, fuselage frames, and other high-strength components.
- Military and Defense: Its combination of strength and machinability makes it an ideal choice for military vehicles and components.
- Machining and Manufacturing: Due to its excellent machinability, it is used in precision manufacturing applications, including parts that require fine finishing or machining.
Manufacturing and Processing of 2014 O Aluminum
- Machining: Suitable for precision component manufacturing.
- Welding: Due to its alloying elements, special techniques are required to ensure joint integrity.
- Forming: Can be shaped into complex forms when in the O temper.
2014-O aluminum alloy, with its high strength and machinability, is an essential material in industries such as aerospace, military, and high-performance machining. Although it offers good machinability and high strength, its moderate corrosion resistance limits its use in highly corrosive environments.
2014 O Aluminum Physical Properties
| Physical Properties | Metric | English |
| Density | 2.8 g/cc | 0.101 lb/in³ |
2014 O Aluminum Mechanical Properties
| Mechanical Properties | Metric | English |
| Hardness, Brinell | 45 | 45 |
| Ultimate Tensile Strength | 186 MPa | 27000 psi |
| Tensile Yield Strength | 96.5 MPa | 14000 psi |
| Elongation at Break | 18% | 18% |
| Modulus of Elasticity | 72.4 GPa | 10500 ksi |
| Modulus of Elasticity | 73.1 GPa | 10600 ksi |
| Compressive Modulus | 73.8 GPa | 10700 ksi |
| Poisson's Ratio | 0.33 | 0.33 |
| Fatigue Strength | 89.6 MPa | 13000 psi |
| Machinability | 30% | 30% |
| Shear Modulus | 28 GPa | 4060 ksi |
| Shear Strength | 124 MPa | 18000 psi |
2014 O Aluminum Electrical Properties
| Electrical Resistivity | Metric | English |
| Electrical Resistivity | 3.49e-006 ohm-cm | 3.49e-006 ohm-cm |
2014 O Aluminum Thermal Properties
| Thermal Properties | Metric | English |
| CTE, linear 68°F | 23 µm/m-°C | 12.8 µin/in-°F |
| CTE, linear 250°C | 24.4 µm/m-°C | 13.6 µin/in-°F |
| Specific Heat Capacity | 0.88 J/g-°C | 0.21 BTU/lb-°F |
| Thermal Conductivity | 193 W/m-K | 1340 BTU-in/hr-ft²-°F |
| Melting Point | 507 - 638 °C | 945 - 1180 °F |
| Solidus | 507 °C | 945 °F |
| Liquidus | 638 °C | 1180 °F |
2014 O Aluminum Processing Properties
| Processing Properties | Metric | English |
| Annealing Temperature | 413 °C | 775 °F |
| Solution Temperature | 502 °C | 935 °F |