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EN-MC65220 Magnesium vs. 2618A Aluminum

EN-MC65220 magnesium belongs to the magnesium alloys classification, while 2618A aluminum belongs to the aluminum alloys. There are 29 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 EN-MC65220 magnesium and the bottom bar is 2618A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
72
Elongation at Break, % 2.2
4.5
Fatigue Strength, MPa 110
120
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
27
Shear Strength, MPa 150
260
Tensile Strength: Ultimate (UTS), MPa 270
440
Tensile Strength: Yield (Proof), MPa 200
410

Thermal Properties

Latent Heat of Fusion, J/g 340
390
Maximum Temperature: Mechanical, °C 160
230
Melting Completion (Liquidus), °C 610
670
Melting Onset (Solidus), °C 550
560
Specific Heat Capacity, J/kg-K 980
880
Thermal Conductivity, W/m-K 110
150
Thermal Expansion, µm/m-K 26
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
37
Electrical Conductivity: Equal Weight (Specific), % IACS 120
110

Otherwise Unclassified Properties

Base Metal Price, % relative 80
11
Density, g/cm3 1.9
3.0
Embodied Carbon, kg CO2/kg material 27
8.4
Embodied Energy, MJ/kg 210
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5
19
Resilience: Unit (Modulus of Resilience), kJ/m3 450
1180
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 62
47
Strength to Weight: Axial, points 40
41
Strength to Weight: Bending, points 49
44
Thermal Diffusivity, mm2/s 61
59
Thermal Shock Resistance, points 17
19

Alloy Composition

Aluminum (Al), % 0
91.5 to 95.2
Copper (Cu), % 0.050 to 0.1
1.8 to 2.7
Iron (Fe), % 0 to 0.010
0.9 to 1.4
Magnesium (Mg), % 93.8 to 96.8
1.2 to 1.8
Manganese (Mn), % 0 to 0.15
0 to 0.25
Nickel (Ni), % 0 to 0.0050
0.8 to 1.4
Silicon (Si), % 0 to 0.010
0.15 to 0.25
Silver (Ag), % 1.3 to 1.7
0
Titanium (Ti), % 0
0 to 0.2
Unspecified Rare Earths, % 1.5 to 3.0
0
Zinc (Zn), % 0 to 0.2
0 to 0.15
Zirconium (Zr), % 0.4 to 1.0
0 to 0.25
Residuals, % 0
0 to 0.15