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EN-MC21120 Magnesium vs. EN AC-43300 Aluminum

EN-MC21120 magnesium belongs to the magnesium alloys classification, while EN AC-43300 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-MC21120 magnesium and the bottom bar is EN AC-43300 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 63 to 75
91 to 94
Elastic (Young's, Tensile) Modulus, GPa 46
71
Elongation at Break, % 2.2 to 6.7
3.4 to 6.7
Fatigue Strength, MPa 84 to 96
76 to 77
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
27
Tensile Strength: Ultimate (UTS), MPa 200 to 270
280 to 290
Tensile Strength: Yield (Proof), MPa 130 to 170
210 to 230

Thermal Properties

Latent Heat of Fusion, J/g 350
540
Maximum Temperature: Mechanical, °C 130
170
Melting Completion (Liquidus), °C 600
600
Melting Onset (Solidus), °C 490
590
Specific Heat Capacity, J/kg-K 990
910
Thermal Conductivity, W/m-K 76
140
Thermal Expansion, µm/m-K 26
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
40
Electrical Conductivity: Equal Weight (Specific), % IACS 59
140

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.5
Density, g/cm3 1.7
2.5
Embodied Carbon, kg CO2/kg material 22
7.9
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 990
1080

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.0 to 15
9.1 to 17
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 320
300 to 370
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 69
54
Strength to Weight: Axial, points 31 to 43
31 to 32
Strength to Weight: Bending, points 43 to 53
37 to 38
Thermal Diffusivity, mm2/s 44
59
Thermal Shock Resistance, points 11 to 16
13 to 14

Alloy Composition


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Aluminum (Al), % 8.3 to 9.7
88.9 to 90.8
Copper (Cu), % 0 to 0.030
0 to 0.050
Iron (Fe), % 0 to 0.0050
0 to 0.19
Magnesium (Mg), % 88.6 to 91.3
0.25 to 0.45
Manganese (Mn), % 0.1 to 0.5
0 to 0.1
Nickel (Ni), % 0 to 0.0020
0
Silicon (Si), % 0 to 0.2
9.0 to 10
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 0.35 to 1.0
0 to 0.070
Residuals, % 0 to 0.010
0 to 0.1

Comparable Variants