| All data is for information only------(Home) | |
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| PRODUCT DATA of AA5456-H343 |
| Material | AA5456-H343 |
| Processing and Assembly | Fabricated to have good resistance to stress corrosion cracking. |
| Chemical Composition | Al-5.1Mg-0.8Mn-0.12Cr |
| EXPERIENCE IN PRACTICE |
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| Development Status | Commercial Product |
| Cost Range | Low |
| Lot Reproducibility | Good |
| Equivalent Designations | AA 5456 |
| Space Experience | Good |
| PHYSICAL PROPERTIES |
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| Crystal Structure | Face centered cubic (fcc) |
| Specific Gravity | 2.65 |
| Magnetic Properties | Nonmagnetic |
| ELASTIC PROPERTIES |
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| Tensile Modulus | 72 GPa |
| Shear Modulus | 27.1 GPa |
| Bulk Modulus | 0.33 |
| MECHANICAL PROPERTIES |
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| Ultimate Tensile Strength | 365 MPa |
| Proof Stress (0.2%) | 269 MPa |
| Hardness | 94 HB |
| ELECTRICAL PROPERTIES |
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| Electrical Volume Resistivity | 5.9e-8 ohm.m |
| THERMAL PROPERTIES |
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| Temperature Range | 66 °C(maximum) |
| Thermal Conductivity | 117 W/m.K |
| Thermal Expansion Coefficient | 23.9 μstrain/°C |
| Specific Heat | 0.963 J/g.K |
| Melting Range | 571 to 638 °C |
| RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY |
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| Stress Corrosion Status | High Resistance to SCC: Table 1 Remark: acc. to ECSS-Q-ST-70-36C 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 Remark: ECSS-Q-ST-70C Rev.1 table 5.1 Data Quality: Design Data |
| Welding | Excellent (fusion and resistance methods) |
| 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 |