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| PRODUCT DATA of AZ61A |
| Material | AZ61A |
| General Information | Magnesium AZ61A is a magnesium extrusion alloy |
| Chemical Composition | Mg-6.5Al-1Zn |
| EXPERIENCE IN PRACTICE |
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| Equivalent Designations | UNS S44635 elektron AZM |
| PHYSICAL PROPERTIES |
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| Specific Gravity | 1.8 |
| ELASTIC PROPERTIES |
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| Tensile Modulus | 44.8 GPa |
| Poisson Ratio | 0.35 |
| THERMAL PROPERTIES |
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| Thermal Conductivity | 79.5 W/m.K |
| Thermal Expansion Coefficient | 27.3 μstrain/°C |
| RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY |
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| General Corrosion Status | Requires specific corrosion protection |
| Stress Corrosion Status | Low Resistance to SCC: Table 3
Remark: Not for primary structural items. For high stress applications, see ECSS-Q-70-36A Remark: Requires Stress corrosion evaluation form Remark: acc. to ECSS-Q-ST-70-36C Data Quality: Design Data |
| Bimetallic Corrosion | Can be connected in a clean room environment to: Sn-Pb alloys, Sn, Pb Needs specific measures: All others |
| SPECIAL RECOMMENDATIONS |
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| Special Recommendations | The part should be Lanolin covered or oiled at all times during machining and prior to protective treatments so as to avoid corrosion. · Protective treatments can be either: 1. Anodising and painting, 2. Chromating and painting. · The part should never make direct contact with other metals. Magnesium is more electrochemically negative than all other commonly used metals and will therefore be sacrificially corroded in any electrochemical cell that is created. |