| All data is for information only------(<---links) | |
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| PRODUCT DATA of AA2011-T8 |
| Material | AA2011-T8 |
| General Information | This is an age-hardenable alloy noted for its free-machining characteristics and good mechanical properties |
| Processing and Assembly | Solution heat treated, cold worked and artificially aged |
| Precautions | Typical data from the Aluminium Association (AA). Not for design |
| Chemical Composition | Al-5.5Cu-0.4Pb-0.4Bi |
| EXPERIENCE IN PRACTICE |
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| Development Status | Commercial Product |
| PHYSICAL PROPERTIES |
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| Crystal Structure | Face centered cubic (fcc) |
| Specific Gravity | 2.83 |
| Magnetic Properties | Nonmagnetic |
| ELASTIC PROPERTIES |
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| Tensile Modulus | 70.3 GPa Typical data |
| Shear Modulus | 26 GPa Typical data |
| Poisson Ratio | 0.33 GPa Typical data |
| ELECTRICAL PROPERTIES |
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| Electrical Volume Resistivity | 3.82e-8 ohm.m |
| Electrical Conductivity | 45.5 %IACS |
| THERMAL PROPERTIES |
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| Temperature Range | 121 °C(maximum) |
| Thermal Conductivity | 171 W/m.K |
| Thermal Expansion Coefficient | 22.9 µstrain/°C |
| Melting Range | 540 to 643 °C |
| Specific Heat | 0.88 J/g.K |
| RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY |
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| General Corrosion Status | Requires specific corrosion protection |
| Stress Corrosion Status | High Resistance to SCC: Table 1 |
| Bimetallic Corrosion | Can be used in a non-controlled environment with: Al+alloys, Cd, Sn-Pb alloys, Sn, Pb
Can be used in a clean room environment with: as above and Mg, Ni, Monel, Inconel, Ni-Mo alloys, 300 series SS, 400 series SS, Ti and Ti alloys, Zn, Be Needs specific measures: All others Test: ECSS-Q-ST-70-71 table1 Data Quality: Design Data |
| Machinability | This is a free-machining alloy and both carbide or high-speed tool steel tooling may be used. Carbide tooling is preferred. |
| Welding | Welding of this alloy is NOT recommended |
| Aging | Age hardening (typical for T4 temper) is done by a 510 soak for 3 hours followed by water quench. Other temper variations are possible with additional treatment such as heating to 160 C for 14 hours, after solution heating, to produce T 8 temper. |
| FLUID SYSTEMS COMPATIBILITY |
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| Gaseous Oxygen (GOX) | Untested |
| Liquid Oxygen (LOX) | Untested |
| Nitrogen Tetroxide (N2O4) | Untested |
| Hydrazine (HDZE) | Untested |