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6066-T4 Aluminum vs. AM100A-T4 Magnesium

6066-T4 aluminum belongs to the aluminum alloys classification, while AM100A-T4 magnesium belongs to the magnesium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is 6066-T4 aluminum and the bottom bar is AM100A-T4 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
46
Elongation at Break, % 16
6.8
Fatigue Strength, MPa 110
55
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
18
Shear Strength, MPa 200
150
Tensile Strength: Ultimate (UTS), MPa 340
260
Tensile Strength: Yield (Proof), MPa 200
78

Thermal Properties

Latent Heat of Fusion, J/g 410
350
Maximum Temperature: Mechanical, °C 170
140
Melting Completion (Liquidus), °C 650
590
Melting Onset (Solidus), °C 560
460
Specific Heat Capacity, J/kg-K 890
990
Thermal Conductivity, W/m-K 150
73
Thermal Expansion, µm/m-K 23
25

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
11
Electrical Conductivity: Equal Weight (Specific), % IACS 130
59

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.8
1.7
Embodied Carbon, kg CO2/kg material 8.3
22
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1160
1000

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 47
14
Resilience: Unit (Modulus of Resilience), kJ/m3 280
66
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 49
70
Strength to Weight: Axial, points 34
43
Strength to Weight: Bending, points 39
53
Thermal Diffusivity, mm2/s 61
43
Thermal Shock Resistance, points 15
16

Alloy Composition

Aluminum (Al), % 93 to 97
9.3 to 10.7
Chromium (Cr), % 0 to 0.4
0
Copper (Cu), % 0.7 to 1.2
0 to 0.1
Iron (Fe), % 0 to 0.5
0
Magnesium (Mg), % 0.8 to 1.4
87.9 to 90.6
Manganese (Mn), % 0.6 to 1.1
0.1 to 0.35
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0.9 to 1.8
0 to 0.3
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.25
0 to 0.3
Residuals, % 0
0 to 0.3