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EN-MC65120 Magnesium vs. C355.0 Aluminum

EN-MC65120 magnesium belongs to the magnesium alloys classification, while C355.0 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-MC65120 magnesium and the bottom bar is C355.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 55
86 to 90
Elastic (Young's, Tensile) Modulus, GPa 45
70
Elongation at Break, % 3.1
2.7 to 3.8
Fatigue Strength, MPa 80
76 to 84
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
26
Tensile Strength: Ultimate (UTS), MPa 160
290 to 310
Tensile Strength: Yield (Proof), MPa 110
200 to 230

Thermal Properties

Latent Heat of Fusion, J/g 330
470
Maximum Temperature: Mechanical, °C 180
170
Melting Completion (Liquidus), °C 590
620
Melting Onset (Solidus), °C 520
570
Specific Heat Capacity, J/kg-K 970
900
Thermal Conductivity, W/m-K 100
150
Thermal Expansion, µm/m-K 26
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
39
Electrical Conductivity: Equal Weight (Specific), % IACS 120
130

Otherwise Unclassified Properties

Base Metal Price, % relative 25
9.5
Density, g/cm3 1.9
2.7
Embodied Carbon, kg CO2/kg material 25
8.0
Embodied Energy, MJ/kg 190
150
Embodied Water, L/kg 930
1120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.4
7.5 to 9.8
Resilience: Unit (Modulus of Resilience), kJ/m3 140
290 to 380
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 62
51
Strength to Weight: Axial, points 23
30 to 32
Strength to Weight: Bending, points 34
36 to 37
Thermal Diffusivity, mm2/s 56
60
Thermal Shock Resistance, points 9.8
13 to 14

Alloy Composition

Aluminum (Al), % 0
91.7 to 94.1
Copper (Cu), % 0 to 0.030
1.0 to 1.5
Iron (Fe), % 0 to 0.010
0 to 0.2
Magnesium (Mg), % 91.8 to 95.1
0.4 to 0.6
Manganese (Mn), % 0 to 0.15
0 to 0.1
Nickel (Ni), % 0 to 0.0050
0
Silicon (Si), % 0 to 0.010
4.5 to 5.5
Titanium (Ti), % 0
0 to 0.2
Unspecified Rare Earths, % 2.5 to 4.0
0
Zinc (Zn), % 2.0 to 3.0
0 to 0.1
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0 to 0.15