to Wrought aluminum-lithium alloys
to Properties of aluminum alloys
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| Wrought aluminum-lithium alloy 8090 | ||||
| Chemical composition: Li=2.4%, Cu=1.9%, Mg=0.9%, Zr=0.1%, Al balance | ||||
| Property | Value in metric unit | Value in US unit | ||
| Density | 2.54 *10³ | kg/m³ | 159 | lb/ft³ |
|---|---|---|---|---|
| Modulus of elasticity | 77 | GPa | 11200 | ksi |
| Thermal expansion (20 ºC) | 21.4*10-6 | ºCˉ¹ | 11.9*10-6 | in/(in* ºF) |
| Specific heat capacity | 930 | J/(kg*K) | 0.222 | BTU/(lb*ºF) |
| Thermal conductivity | 95.3 | W/(m*K) | 661 | BTU*in/(hr*ft²*ºF) |
| Tensile strength (T3) | 340 | MPa | 49300 | psi |
| Yield strength (T3) | 210 | MPa | 30500 | psi |
| Elongation T(3) | 13 | % | 13 | % |
| Shear strength (T3) | 200 | MPa | 29000 | psi |
| Hardness (T3) | 91 | HB | 91 | HB |
| Tensile strength (T8x) | 490 | MPa | 71100 | psi |
| Yield strength (T8x) | 430 | MPa | 62400 | psi |
| Elongation (T8x) | 9 | % | 9 | % |
| Shear strength (T8x) | 290 | MPa | 42100 | psi |
| Fracture toughness (T8x) | 75 | MPa*m½ | 68.3 | ksi*in½ |
| Hardness (T8x) | 130 | HB | 130 | HB |