| All data is for information only------(<---links) | |
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| PRODUCT DATA of AA6061-T6 |
| Material | AA6061-T6 |
| General Information | Probably the most commonly available, heat treatable aluminum alloy. Very good corrosion resistance. Very good weldability; reduced strength values in the zone of welding. Heat treatable alloy. Medium high strength alloy with a strength higher than 6005A. Medium fatigue strength. Good cold formability in the temper T4. Not suitable for very complex cross sections. |
| Chemical Composition | Al-1Mg-0.6Si-0.1Cr-0.3Cu |
| EXPERIENCE IN PRACTICE |
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| Development Status | Commercial Product |
| Cost Range | Very Low |
| Space Experience | Good |
| PHYSICAL PROPERTIES |
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| Crystal Structure | Face centered cubic (fcc) |
| Specific Gravity | 2.7 |
| Magnetic Properties | Nonmagnetic |
| ELASTIC PROPERTIES |
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| Tensile Modulus | 69 GPa Data Quality: Limited Laboratory testing |
| Shear Modulus | 26 GPa Data Quality: Typical Data |
| Poisson Ratio | 0.33 |
| ELECTRICAL PROPERTIES |
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| Electrical Volume Resistivity | 4e-8 ohm.m |
| THERMAL PROPERTIES |
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| Temperature Range | 217 °C(maximum) |
| Thermal Conductivity | 167 W/m.K |
| Thermal Expansion Coefficient | 23.6 µstrain/°C Remark: from RT to 100C Data Quality: Typical Data |
| Melting Range | 582 to 652 °C |
| Specific Heat | 0.896 J/g.K |
| RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY |
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| General Corrosion Status | No specific corrosion protection required |
| Stress Corrosion Status | High Resistance to SCC: Table 1 Data Quality: Design Data |
| EMF vs SCE | -0.75 V |
| Bimetallic Corrosion | Can be used in a non-controlled environment: Al alloys, Cd
Can be used in a clean room environment: Mg, Sn-Pb alloys (all), Sn, Pb, Zn, Be Needs specific measures: All others< Remark: ECSS-Q-ST-70C Rev.1 table 5.1 Data Quality: Design Data |
| Machinability | Machinability in the harder T 4 and T6 tempers is good. It is notably less easy to machine in the annealed temper |
| Welding | The alloy has very good welding characteristics and may be welded by all of the common welding techniques. |
| Aging | The aging precipitation heat treatment is done at 192 C for 8 hours followed by air cooling. This produces the T6 temper |
| FLUID SYSTEMS COMPATIBILITY |
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| Gaseous Oxygen (GOX) | Meets the mechanical impact requirements. No batch test required. |
| Liquid Oxygen (LOX) | Meets the mechanical impact requirements. No batch test required. |
| Nitrogen Tetroxide (N2O4) | SCC susceptibility is low and no fluid decomposition |
| Hydrazine (HDZE) | SCC susceptibility is low and no fluid decomposition |