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The AZ61A alloy has lower strength than AZ80 and requires the slowest rate of deformation of the magnesium-aluminum-zinc alloys.
General-purpose extrusions with good properties and moderate costs, and forgings with good mechanical properties; used in the as-fabricated (F) temper. This alloy is used in sheet form for battery applications only.
| Weight % | Al | Zn | Mn | Si | Cu | Ni | Fe | Other | Mg |
|---|---|---|---|---|---|---|---|---|---|
| minimum | 5.80 | 0.40 | 0.15 | — | — | — | — | — | Bal |
| maximum | 7.20 | 1.50 | — | 0.10 | 0.05 | 0.005 | 0.005 | 0.30 |
| Characteristics | English | Metric | ||
|---|---|---|---|---|
| Nominal density | 25°C / 78°F | 0.065 lbs/in3 | 1.8 g/cm3 | |
| Specific heat | 25°C / 78°F | 0.25 BTU/lb – °F | 1050 J/KG- °K | |
| Incipient melting | >=801 °F | >=427 °C | ||
| Coefficient of thermal
expansion |
20°C / 68°F | 14 micro in/in- °F | 26 micro m/m- °K | |
| Thermal conductivity | 100-200°C
(212-572°F) |
46 BTU/ft- hr – °F | 80 W/m – °K | |
| Electrical resistivity | 20°C / 68°F | 125 nΩ ∙ m | ||
| Electrical conductivity | 20°C / 68°F | 11.6 %IACS | ||
| Form | Tensile | Hardness | Shear strength | |||||
|---|---|---|---|---|---|---|---|---|
| Ultimate | Yield | Elongation
in 50 mm (2 in.) |
Brinell
500 kg load, 10 mm ball |
|||||
| KSI | MPa | KSI | MPa | % | KSI | MPa | ||
| Bar & Rod | 44 | 305 | 30 | 205 | 16 | 60 | 20 | 140 |
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