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2618A Aluminum vs. ZE41A Magnesium

2618A 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 2618A aluminum and the bottom bar is ZE41A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
45
Elongation at Break, % 4.5
3.3
Fatigue Strength, MPa 120
98
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
18
Shear Strength, MPa 260
150
Tensile Strength: Ultimate (UTS), MPa 440
210
Tensile Strength: Yield (Proof), MPa 410
140

Thermal Properties

Latent Heat of Fusion, J/g 390
330
Maximum Temperature: Mechanical, °C 230
150
Melting Completion (Liquidus), °C 670
640
Melting Onset (Solidus), °C 560
540
Specific Heat Capacity, J/kg-K 880
970
Thermal Conductivity, W/m-K 150
110
Thermal Expansion, µm/m-K 23
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
27
Electrical Conductivity: Equal Weight (Specific), % IACS 110
130

Otherwise Unclassified Properties

Base Metal Price, % relative 11
18
Density, g/cm3 3.0
1.9
Embodied Carbon, kg CO2/kg material 8.4
24
Embodied Energy, MJ/kg 150
170
Embodied Water, L/kg 1150
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
6.1
Resilience: Unit (Modulus of Resilience), kJ/m3 1180
220
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 47
63
Strength to Weight: Axial, points 41
31
Strength to Weight: Bending, points 44
41
Thermal Diffusivity, mm2/s 59
59
Thermal Shock Resistance, points 19
12

Alloy Composition

Aluminum (Al), % 91.5 to 95.2
0
Copper (Cu), % 1.8 to 2.7
0 to 0.1
Iron (Fe), % 0.9 to 1.4
0
Magnesium (Mg), % 1.2 to 1.8
91.7 to 95.4
Manganese (Mn), % 0 to 0.25
0 to 0.15
Nickel (Ni), % 0.8 to 1.4
0 to 0.010
Silicon (Si), % 0.15 to 0.25
0
Titanium (Ti), % 0 to 0.2
0
Unspecified Rare Earths, % 0
0.75 to 1.8
Zinc (Zn), % 0 to 0.15
3.5 to 5.0
Zirconium (Zr), % 0 to 0.25
0.4 to 1.0
Residuals, % 0
0 to 0.3