| All data is for information only------(Home) | |
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| PRODUCT DATA of AA5056 |
| Material | AA5056 |
| General Information | The alloy does not respond to thermal hest treatments, but its strength can be increased by cold working. Aluminum 5056 has good resistance to rural, industrial and marine atmospheres and good corrosion resistance to most neutral fresh water, sea water, organic acids anhydrides and petroleum derivatives. The alloy exhibits good weldability and can be machined satisfactorily |
| Precautions | Typical data covering several tempers. AA data not for design |
| Chemical Composition | Al-5Mg |
| EXPERIENCE IN PRACTICE |
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| Development Status | Commercial Product |
| Cost Range | Very Low |
| Lot Reproducibility | Very Good |
| Equivalent Designations | AlMg5, BS 2L.58, AA 5056 |
| Space Experience | Good |
| PHYSICAL PROPERTIES |
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| Crystal Structure | Face centered cubic (fcc) |
| Specific Gravity | 2.64 |
| Magnetic Properties | Nonmagnetic |
| ELASTIC PROPERTIES |
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| Tensile Modulus | 71 GPa |
| MECHANICAL PROPERTIES |
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| Ultimate Tensile Strength | 290 to 434 MPa |
| Proof Stress (0.2%) | 152 to 407 MPa |
| Elongation | 10 to 35 % |
| Fatigue Limit | 138 to 152 MPa |
| Shear Strength | 179 to 234 MPa |
| ELECTRICAL PROPERTIES |
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| Electrical Volume Resistivity | 5.9e-8 to 6.4e-8 ohm.m |
| THERMAL PROPERTIES |
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| Thermal Expansion Coefficient | 24.1 µstrain/°C |
| Melting Range | 571 to 638 °C |
| 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 Data Quality: Design Data |
| EMF vs SCE | -0.79 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 Test:ECSS-Q-ST-70C Rev.1 Table 5.1 Data Quality: Design Data |
| SPECIAL RECOMMENDATIONS |
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| Lessons Learned | The alloy is not recommended for continuous service at temperatures above 66°C because of accelerated aging at elevated temperatures which may increase the susceptibility of the alloy to stress corrosion cracking |