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EN-MC21210 Magnesium vs. EN AC-42200 Aluminum

EN-MC21210 magnesium belongs to the magnesium alloys classification, while EN AC-42200 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-MC21210 magnesium and the bottom bar is EN AC-42200 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 48
89 to 100
Elastic (Young's, Tensile) Modulus, GPa 44
70
Elongation at Break, % 14
3.0 to 6.7
Fatigue Strength, MPa 70
86 to 90
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
26
Tensile Strength: Ultimate (UTS), MPa 190
320
Tensile Strength: Yield (Proof), MPa 90
240 to 260

Thermal Properties

Latent Heat of Fusion, J/g 350
500
Maximum Temperature: Mechanical, °C 100
170
Melting Completion (Liquidus), °C 600
610
Melting Onset (Solidus), °C 570
600
Specific Heat Capacity, J/kg-K 1000
910
Thermal Conductivity, W/m-K 120
150
Thermal Expansion, µm/m-K 27
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
40
Electrical Conductivity: Equal Weight (Specific), % IACS 130
140

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
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22
9.0 to 20
Resilience: Unit (Modulus of Resilience), kJ/m3 92
410 to 490
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 72
53
Strength to Weight: Axial, points 32
34 to 35
Strength to Weight: Bending, points 44
40 to 41
Thermal Diffusivity, mm2/s 76
66
Thermal Shock Resistance, points 11
15

Alloy Composition


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Aluminum (Al), % 1.6 to 2.6
91 to 93.1
Copper (Cu), % 0 to 0.010
0 to 0.050
Iron (Fe), % 0 to 0.0050
0 to 0.19
Magnesium (Mg), % 96.3 to 98.3
0.45 to 0.7
Manganese (Mn), % 0.1 to 0.7
0 to 0.1
Nickel (Ni), % 0 to 0.0020
0
Silicon (Si), % 0 to 0.1
6.5 to 7.5
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0 to 0.2
0 to 0.070
Residuals, % 0 to 0.010
0 to 0.1