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EN-MC21120 Magnesium vs. 2095 Aluminum

EN-MC21120 magnesium belongs to the magnesium alloys classification, while 2095 aluminum belongs to the aluminum 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 EN-MC21120 magnesium and the bottom bar is 2095 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 46
70
Elongation at Break, % 2.2 to 6.7
8.5
Fatigue Strength, MPa 84 to 96
200
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
26
Shear Strength, MPa 110 to 160
410
Tensile Strength: Ultimate (UTS), MPa 200 to 270
700
Tensile Strength: Yield (Proof), MPa 130 to 170
610

Thermal Properties

Latent Heat of Fusion, J/g 350
390
Maximum Temperature: Mechanical, °C 130
210
Melting Completion (Liquidus), °C 600
660
Melting Onset (Solidus), °C 490
540
Specific Heat Capacity, J/kg-K 990
910
Thermal Conductivity, W/m-K 76
130
Thermal Expansion, µm/m-K 26
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
35
Electrical Conductivity: Equal Weight (Specific), % IACS 59
110

Otherwise Unclassified Properties

Base Metal Price, % relative 12
31
Density, g/cm3 1.7
3.0
Embodied Carbon, kg CO2/kg material 22
8.6
Embodied Energy, MJ/kg 160
160
Embodied Water, L/kg 990
1470

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.0 to 15
57
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 320
2640
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 69
46
Strength to Weight: Axial, points 31 to 43
65
Strength to Weight: Bending, points 43 to 53
59
Thermal Diffusivity, mm2/s 44
49
Thermal Shock Resistance, points 11 to 16
31

Alloy Composition

Aluminum (Al), % 8.3 to 9.7
91.3 to 94.9
Copper (Cu), % 0 to 0.030
3.9 to 4.6
Iron (Fe), % 0 to 0.0050
0 to 0.15
Lithium (Li), % 0
0.7 to 1.5
Magnesium (Mg), % 88.6 to 91.3
0.25 to 0.8
Manganese (Mn), % 0.1 to 0.5
0 to 0.25
Nickel (Ni), % 0 to 0.0020
0
Silicon (Si), % 0 to 0.2
0 to 0.12
Silver (Ag), % 0
0.25 to 0.6
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 0.35 to 1.0
0 to 0.25
Zirconium (Zr), % 0
0.040 to 0.18
Residuals, % 0
0 to 0.15