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7108A Aluminum vs. ZE41A Magnesium

7108A aluminum belongs to the aluminum alloys classification, while ZE41A magnesium belongs to the magnesium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is 7108A aluminum and the bottom bar is ZE41A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
45
Elongation at Break, % 11 to 13
3.3
Fatigue Strength, MPa 120 to 130
98
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
18
Shear Strength, MPa 210
150
Tensile Strength: Ultimate (UTS), MPa 350
210
Tensile Strength: Yield (Proof), MPa 290 to 300
140

Thermal Properties

Latent Heat of Fusion, J/g 380
330
Maximum Temperature: Mechanical, °C 210
150
Melting Completion (Liquidus), °C 630
640
Melting Onset (Solidus), °C 520
540
Specific Heat Capacity, J/kg-K 870
970
Thermal Conductivity, W/m-K 150
110
Thermal Expansion, µm/m-K 24
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
27
Electrical Conductivity: Equal Weight (Specific), % IACS 110
130

Otherwise Unclassified Properties

Base Metal Price, % relative 10
18
Density, g/cm3 2.9
1.9
Embodied Carbon, kg CO2/kg material 8.3
24
Embodied Energy, MJ/kg 150
170
Embodied Water, L/kg 1150
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 38 to 44
6.1
Resilience: Unit (Modulus of Resilience), kJ/m3 610 to 640
220
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 47
63
Strength to Weight: Axial, points 33 to 34
31
Strength to Weight: Bending, points 38
41
Thermal Diffusivity, mm2/s 59
59
Thermal Shock Resistance, points 15 to 16
12

Alloy Composition

Aluminum (Al), % 91.6 to 94.4
0
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
91.7 to 95.4
Manganese (Mn), % 0 to 0.050
0 to 0.15
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0 to 0.2
0
Titanium (Ti), % 0 to 0.030
0
Unspecified Rare Earths, % 0
0.75 to 1.8
Zinc (Zn), % 4.8 to 5.8
3.5 to 5.0
Zirconium (Zr), % 0.15 to 0.25
0.4 to 1.0
Residuals, % 0
0 to 0.3