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7108A-T6 Aluminum vs. AM100A-T6 Magnesium

7108A-T6 aluminum belongs to the aluminum alloys classification, while AM100A-T6 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 7108A-T6 aluminum and the bottom bar is AM100A-T6 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
46
Elongation at Break, % 13
2.3
Fatigue Strength, MPa 130
62
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
18
Shear Strength, MPa 210
150
Tensile Strength: Ultimate (UTS), MPa 350
270
Tensile Strength: Yield (Proof), MPa 300
120

Thermal Properties

Latent Heat of Fusion, J/g 380
350
Maximum Temperature: Mechanical, °C 210
140
Melting Completion (Liquidus), °C 630
590
Melting Onset (Solidus), °C 520
460
Specific Heat Capacity, J/kg-K 870
990
Thermal Conductivity, W/m-K 150
73
Thermal Expansion, µm/m-K 24
25

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
11
Electrical Conductivity: Equal Weight (Specific), % IACS 110
59

Otherwise Unclassified Properties

Base Metal Price, % relative 10
12
Density, g/cm3 2.9
1.7
Embodied Carbon, kg CO2/kg material 8.3
22
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1150
1000

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 44
4.9
Resilience: Unit (Modulus of Resilience), kJ/m3 640
160
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 47
70
Strength to Weight: Axial, points 33
43
Strength to Weight: Bending, points 38
54
Thermal Diffusivity, mm2/s 59
43
Thermal Shock Resistance, points 15
16

Alloy Composition

Aluminum (Al), % 91.6 to 94.4
9.3 to 10.7
Chromium (Cr), % 0 to 0.040
0
Copper (Cu), % 0 to 0.050
0 to 0.1
Gallium (Ga), % 0 to 0.030
0
Iron (Fe), % 0 to 0.3
0
Magnesium (Mg), % 0.7 to 1.5
87.9 to 90.6
Manganese (Mn), % 0 to 0.050
0.1 to 0.35
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0 to 0.2
0 to 0.3
Titanium (Ti), % 0 to 0.030
0
Zinc (Zn), % 4.8 to 5.8
0 to 0.3
Zirconium (Zr), % 0.15 to 0.25
0
Residuals, % 0
0 to 0.3