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EN-MC65220 Magnesium vs. 4104 Aluminum

EN-MC65220 magnesium belongs to the magnesium alloys classification, while 4104 aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN-MC65220 magnesium and the bottom bar is 4104 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
71
Elongation at Break, % 2.2
2.4
Fatigue Strength, MPa 110
42
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
27
Shear Strength, MPa 150
63
Tensile Strength: Ultimate (UTS), MPa 270
110
Tensile Strength: Yield (Proof), MPa 200
60

Thermal Properties

Latent Heat of Fusion, J/g 340
540
Maximum Temperature: Mechanical, °C 160
160
Melting Completion (Liquidus), °C 610
600
Melting Onset (Solidus), °C 550
560
Specific Heat Capacity, J/kg-K 980
900
Thermal Conductivity, W/m-K 110
130
Thermal Expansion, µm/m-K 26
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
33
Electrical Conductivity: Equal Weight (Specific), % IACS 120
120

Otherwise Unclassified Properties

Base Metal Price, % relative 80
9.5
Density, g/cm3 1.9
2.6
Embodied Carbon, kg CO2/kg material 27
8.0
Embodied Energy, MJ/kg 210
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5
2.3
Resilience: Unit (Modulus of Resilience), kJ/m3 450
25
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 62
54
Strength to Weight: Axial, points 40
12
Strength to Weight: Bending, points 49
20
Thermal Diffusivity, mm2/s 61
58
Thermal Shock Resistance, points 17
5.1

Alloy Composition


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Aluminum (Al), % 0
85.8 to 90
Bismuth (Bi), % 0
0.020 to 0.2
Copper (Cu), % 0.050 to 0.1
0 to 0.25
Iron (Fe), % 0 to 0.010
0 to 0.8
Magnesium (Mg), % 93.8 to 96.8
1.0 to 2.0
Manganese (Mn), % 0 to 0.15
0 to 0.1
Nickel (Ni), % 0 to 0.0050
0
Silicon (Si), % 0 to 0.010
9.0 to 10.5
Silver (Ag), % 1.3 to 1.7
0
Unspecified Rare Earths, % 1.5 to 3.0
0
Zinc (Zn), % 0 to 0.2
0 to 0.2
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0 to 0.15