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AM50A Magnesium vs. 6066 Aluminum

AM50A magnesium belongs to the magnesium alloys classification, while 6066 aluminum belongs to the aluminum 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 AM50A magnesium and the bottom bar is 6066 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
70
Elongation at Break, % 11
7.8 to 17
Fatigue Strength, MPa 70
94 to 130
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
26
Shear Strength, MPa 120
95 to 240
Tensile Strength: Ultimate (UTS), MPa 210
160 to 400
Tensile Strength: Yield (Proof), MPa 120
93 to 360

Thermal Properties

Latent Heat of Fusion, J/g 350
410
Maximum Temperature: Mechanical, °C 120
170
Melting Completion (Liquidus), °C 620
650
Melting Onset (Solidus), °C 570
560
Specific Heat Capacity, J/kg-K 1000
890
Thermal Conductivity, W/m-K 65
150
Thermal Expansion, µm/m-K 26
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
40
Electrical Conductivity: Equal Weight (Specific), % IACS 88
130

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.5
Density, g/cm3 1.7
2.8
Embodied Carbon, kg CO2/kg material 23
8.3
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 990
1160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
23 to 52
Resilience: Unit (Modulus of Resilience), kJ/m3 150
61 to 920
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 71
49
Strength to Weight: Axial, points 35
16 to 39
Strength to Weight: Bending, points 47
23 to 43
Thermal Diffusivity, mm2/s 39
61
Thermal Shock Resistance, points 13
6.9 to 17

Alloy Composition


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Aluminum (Al), % 4.4 to 5.4
93 to 97
Chromium (Cr), % 0
0 to 0.4
Copper (Cu), % 0 to 0.010
0.7 to 1.2
Iron (Fe), % 0 to 0.0040
0 to 0.5
Magnesium (Mg), % 93.7 to 95.3
0.8 to 1.4
Manganese (Mn), % 0.26 to 0.6
0.6 to 1.1
Nickel (Ni), % 0 to 0.0020
0
Silicon (Si), % 0 to 0.1
0.9 to 1.8
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0 to 0.22
0 to 0.25
Residuals, % 0
0 to 0.15