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EN-MC65120 Magnesium vs. 3203 Aluminum

EN-MC65120 magnesium belongs to the magnesium alloys classification, while 3203 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN-MC65120 magnesium and the bottom bar is 3203 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
70
Elongation at Break, % 3.1
4.5 to 29
Fatigue Strength, MPa 80
46 to 92
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
26
Shear Strength, MPa 92
72 to 120
Tensile Strength: Ultimate (UTS), MPa 160
110 to 200
Tensile Strength: Yield (Proof), MPa 110
39 to 190

Thermal Properties

Latent Heat of Fusion, J/g 330
400
Maximum Temperature: Mechanical, °C 180
180
Melting Completion (Liquidus), °C 590
650
Melting Onset (Solidus), °C 520
620
Specific Heat Capacity, J/kg-K 970
900
Thermal Conductivity, W/m-K 100
170
Thermal Expansion, µm/m-K 26
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
43
Electrical Conductivity: Equal Weight (Specific), % IACS 120
140

Otherwise Unclassified Properties

Base Metal Price, % relative 25
9.0
Density, g/cm3 1.9
2.8
Embodied Carbon, kg CO2/kg material 25
8.1
Embodied Energy, MJ/kg 190
150
Embodied Water, L/kg 930
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.4
8.0 to 25
Resilience: Unit (Modulus of Resilience), kJ/m3 140
11 to 250
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 62
50
Strength to Weight: Axial, points 23
11 to 20
Strength to Weight: Bending, points 34
19 to 28
Thermal Diffusivity, mm2/s 56
70
Thermal Shock Resistance, points 9.8
4.9 to 8.8

Alloy Composition


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Aluminum (Al), % 0
96.9 to 99
Copper (Cu), % 0 to 0.030
0 to 0.050
Iron (Fe), % 0 to 0.010
0 to 0.7
Magnesium (Mg), % 91.8 to 95.1
0
Manganese (Mn), % 0 to 0.15
1.0 to 1.5
Nickel (Ni), % 0 to 0.0050
0
Silicon (Si), % 0 to 0.010
0 to 0.6
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