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EN-MC21210 Magnesium vs. 4104 Aluminum

EN-MC21210 magnesium belongs to the magnesium alloys classification, while 4104 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-MC21210 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, % 14
2.4
Fatigue Strength, MPa 70
42
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
27
Shear Strength, MPa 110
63
Tensile Strength: Ultimate (UTS), MPa 190
110
Tensile Strength: Yield (Proof), MPa 90
60

Thermal Properties

Latent Heat of Fusion, J/g 350
540
Maximum Temperature: Mechanical, °C 100
160
Melting Completion (Liquidus), °C 600
600
Melting Onset (Solidus), °C 570
560
Specific Heat Capacity, J/kg-K 1000
900
Thermal Conductivity, W/m-K 120
130
Thermal Expansion, µm/m-K 27
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
33
Electrical Conductivity: Equal Weight (Specific), % IACS 130
120

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.5
Density, g/cm3 1.6
2.6
Embodied Carbon, kg CO2/kg material 24
8.0
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 980
1080

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22
2.3
Resilience: Unit (Modulus of Resilience), kJ/m3 92
25
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 72
54
Strength to Weight: Axial, points 32
12
Strength to Weight: Bending, points 44
20
Thermal Diffusivity, mm2/s 76
58
Thermal Shock Resistance, points 11
5.1

Alloy Composition


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Aluminum (Al), % 1.6 to 2.6
85.8 to 90
Bismuth (Bi), % 0
0.020 to 0.2
Copper (Cu), % 0 to 0.010
0 to 0.25
Iron (Fe), % 0 to 0.0050
0 to 0.8
Magnesium (Mg), % 96.3 to 98.3
1.0 to 2.0
Manganese (Mn), % 0.1 to 0.7
0 to 0.1
Nickel (Ni), % 0 to 0.0020
0
Silicon (Si), % 0 to 0.1
9.0 to 10.5
Zinc (Zn), % 0 to 0.2
0 to 0.2
Residuals, % 0 to 0.010
0 to 0.15