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1085 Aluminum vs. AZ63A Magnesium

1085 aluminum belongs to the aluminum alloys classification, while AZ63A magnesium belongs to the magnesium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is 1085 aluminum and the bottom bar is AZ63A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
46
Elongation at Break, % 4.5 to 39
2.2 to 8.0
Fatigue Strength, MPa 22 to 49
76 to 83
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
18
Shear Strength, MPa 48 to 79
110 to 160
Tensile Strength: Ultimate (UTS), MPa 73 to 140
190 to 270
Tensile Strength: Yield (Proof), MPa 17 to 120
81 to 120

Thermal Properties

Latent Heat of Fusion, J/g 400
350
Maximum Temperature: Mechanical, °C 170
120
Melting Completion (Liquidus), °C 640
610
Melting Onset (Solidus), °C 640
450
Specific Heat Capacity, J/kg-K 900
980
Thermal Conductivity, W/m-K 230
52 to 65
Thermal Expansion, µm/m-K 23
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 61
12 to 15
Electrical Conductivity: Equal Weight (Specific), % IACS 200
59 to 74

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.7
1.8
Embodied Carbon, kg CO2/kg material 8.3
22
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 1200
970

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.8 to 21
3.7 to 16
Resilience: Unit (Modulus of Resilience), kJ/m3 2.1 to 110
71 to 160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
66
Strength to Weight: Axial, points 7.5 to 14
29 to 41
Strength to Weight: Bending, points 14 to 22
40 to 51
Thermal Diffusivity, mm2/s 94
29 to 37
Thermal Shock Resistance, points 3.3 to 6.1
11 to 16

Alloy Composition

Aluminum (Al), % 99.85 to 100
5.3 to 6.7
Copper (Cu), % 0 to 0.030
0 to 0.25
Gallium (Ga), % 0 to 0.030
0
Iron (Fe), % 0 to 0.12
0
Magnesium (Mg), % 0 to 0.020
88.6 to 92.1
Manganese (Mn), % 0 to 0.020
0.15 to 0.35
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0 to 0.1
0 to 0.3
Titanium (Ti), % 0 to 0.020
0
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.030
2.5 to 3.5
Residuals, % 0
0 to 0.3