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 | Compressive yield strength | |||||
---|---|---|---|---|---|---|---|---|
Ultimate | Yield | Elongation
in 50 mm (2 in.) |
Brinell
500 kg load, 10 mm ball |
|||||
KSI | MPa | KSI | MPa | % | KSI | MPa | ||
Tubing | 41 | 285 | 24 | 165 | 14 | 50 | 68 | 470 |