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EN-MC21120 Magnesium vs. 359.0 Aluminum

EN-MC21120 magnesium belongs to the magnesium alloys classification, while 359.0 aluminum belongs to the aluminum alloys.

For each property being compared, the top bar is EN-MC21120 magnesium and the bottom bar is 359.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 63 to 75
90 to 100
Elastic (Young's, Tensile) Modulus, GPa 46
71
Elongation at Break, % 2.2 to 6.7
3.8 to 4.9
Fatigue Strength, MPa 84 to 96
100
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
27
Shear Strength, MPa 110 to 160
220 to 230
Tensile Strength: Ultimate (UTS), MPa 200 to 270
340 to 350
Tensile Strength: Yield (Proof), MPa 130 to 170
250 to 280

Thermal Properties

Latent Heat of Fusion, J/g 350
530
Maximum Temperature: Mechanical, °C 130
170
Melting Completion (Liquidus), °C 600
600
Melting Onset (Solidus), °C 490
570
Specific Heat Capacity, J/kg-K 990
910
Thermal Conductivity, W/m-K 76
140
Thermal Expansion, µm/m-K 26
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
35
Electrical Conductivity: Equal Weight (Specific), % IACS 59
120

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.5
Density, g/cm3 1.7
2.6
Embodied Carbon, kg CO2/kg material 22
8.0
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 990
1090

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.0 to 15
12 to 15
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 320
450 to 540
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 69
54
Strength to Weight: Axial, points 31 to 43
37 to 38
Strength to Weight: Bending, points 43 to 53
42 to 43
Thermal Diffusivity, mm2/s 44
59
Thermal Shock Resistance, points 11 to 16
16 to 17

Alloy Composition


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Aluminum (Al), % 8.3 to 9.7
88.9 to 91
Copper (Cu), % 0 to 0.030
0 to 0.2
Iron (Fe), % 0 to 0.0050
0 to 0.2
Magnesium (Mg), % 88.6 to 91.3
0.5 to 0.7
Manganese (Mn), % 0.1 to 0.5
0 to 0.1
Nickel (Ni), % 0 to 0.0020
0
Silicon (Si), % 0 to 0.2
8.5 to 9.5
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0.35 to 1.0
0 to 0.1
Residuals, % 0 to 0.010
0 to 0.15