to Wrought aluminum-copper alloys (2xxx)
to Properties of aluminum alloys
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| Wrought aluminum alloy 2024 | ||||
| Chemical composition: Cu=4.4%, Mn=0.60%, Mg = 1.5%, Al balance | ||||
| Property | Value in metric unit | Value in US unit | ||
| Density | 2.78 *10³ | kg/m³ | 174 | lb/ft³ |
|---|---|---|---|---|
| Modulus of elasticity | 73 | GPa | 10600 | ksi |
| Thermal expansion (20 ºC) | 23.2*10-6 | ºCˉ¹ | 12.9*10-6 | in/(in* ºF) |
| Specific heat capacity | 875 | J/(kg*K) | 0.209 | BTU/(lb*ºF) |
| Thermal conductivity | 193 | W/(m*K) | 1340 | BTU*in/(hr*ft²*ºF) |
| Electric resistivity | 3.49*10-8 | Ohm*m | 3.49*10-6 | Ohm*cm |
| Tensile strength (annealed) | 186 | MPa | 27000 | psi |
| Yield strength (annealed) | 76 | MPa | 11000 | psi |
| Elongation (annealed) | 20 | % | 20 | % |
| Shear strength (annealed) | 124 | MPa | 18000 | psi |
| Fatigue strength (annealed) | 90 | MPa | 13000 | psi |
| Hardness (annealed) | 47 | HB | 47 | HB |
| Tensile strength (T361) | 496 | MPa | 72000 | psi |
| Yield strength (T361) | 393 | MPa | 57000 | psi |
| Elongation (T361) | 13 | % | 13 | % |
| Shear strength (T361) | 290 | MPa | 42000 | psi |
| Fatigue strength (T361) | 124 | MPa | 18000 | psi |
| Hardness (T361) | 130 | HB | 130 | HB |
| Annealing temperature | 413 | ºC | 775 | ºF |
| Solution temperature | 493 | ºC | 920 | ºF |
| Aging temperature | 191 | ºC | 375 | ºF |
| Aging time | 10 | hrs | 10 | hrs |