to Wrought aluminum-copper alloys (2xxx)
to Properties of aluminum alloys
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| Wrought aluminum alloy 2219 | ||||
| Chemical composition: Cu=6.3%, Mn=0.30%, Ti = 0.06%, V=0.10%, Zr=0.18%, Al balance | ||||
| Property | Value in metric unit | Value in US unit | ||
| Density | 2.84 *10³ | kg/m³ | 177 | lb/ft³ |
|---|---|---|---|---|
| Modulus of elasticity | 73 | GPa | 10600 | ksi |
| Thermal expansion (20 ºC) | 22.3*10-6 | ºCˉ¹ | 12.4*10-6 | in/(in* ºF) |
| Specific heat capacity | 864 | J/(kg*K) | 0.207 | BTU/(lb*ºF) |
| Thermal conductivity | 171 | W/(m*K) | 1190 | BTU*in/(hr*ft²*ºF) |
| Electric resistivity | 3.99*10-8 | Ohm*m | 3.99*10-6 | Ohm*cm |
| Tensile strength (annealed) | 172 | MPa | 25000 | psi |
| Yield strength (annealed) | 76 | MPa | 11000 | psi |
| Elongation (annealed) | 18 | % | 18 | % |
| Shear strength (annealed) | 106 | MPa | 15400 | psi |
| Hardness (annealed) | 46 | HB | 46 | HB |
| Tensile strength (T851) | 455 | MPa | 66000 | psi |
| Yield strength (T851) | 352 | MPa | 51000 | psi |
| Elongation (T851) | 10 | % | 10 | % |
| Shear strength (T851) | 285 | MPa | 41300 | psi |
| Fatigue strength (T851) | 103 | MPa | 15000 | psi |
| Hardness (T851) | 130 | HB | 130 | HB |
| Annealing temperature | 413 | ºC | 775 | ºF |
| Solution temperature | 535 | ºC | 995 | ºF |
| Aging temperature | 163-191 | ºC | 325-375 | ºF |
| Aging time | 18 | hrs | 18 | hrs |