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EN-MC65120 Magnesium vs. 242.0 Aluminum

EN-MC65120 magnesium belongs to the magnesium alloys classification, while 242.0 aluminum belongs to the aluminum alloys. There are 31 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-MC65120 magnesium and the bottom bar is 242.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 55
70 to 110
Elastic (Young's, Tensile) Modulus, GPa 45
73
Elongation at Break, % 3.1
0.5 to 1.5
Fatigue Strength, MPa 80
55 to 110
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
27
Shear Strength, MPa 92
150 to 240
Tensile Strength: Ultimate (UTS), MPa 160
180 to 290
Tensile Strength: Yield (Proof), MPa 110
120 to 220

Thermal Properties

Latent Heat of Fusion, J/g 330
390
Maximum Temperature: Mechanical, °C 180
210
Melting Completion (Liquidus), °C 590
640
Melting Onset (Solidus), °C 520
530
Specific Heat Capacity, J/kg-K 970
870
Thermal Conductivity, W/m-K 100
130 to 170
Thermal Expansion, µm/m-K 26
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
33 to 44
Electrical Conductivity: Equal Weight (Specific), % IACS 120
96 to 130

Otherwise Unclassified Properties

Base Metal Price, % relative 25
12
Density, g/cm3 1.9
3.1
Embodied Carbon, kg CO2/kg material 25
8.3
Embodied Energy, MJ/kg 190
150
Embodied Water, L/kg 930
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.4
1.3 to 3.4
Resilience: Unit (Modulus of Resilience), kJ/m3 140
110 to 340
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 62
45
Strength to Weight: Axial, points 23
16 to 26
Strength to Weight: Bending, points 34
23 to 32
Thermal Diffusivity, mm2/s 56
50 to 62
Thermal Shock Resistance, points 9.8
8.0 to 13

Alloy Composition


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Aluminum (Al), % 0
88.4 to 93.6
Chromium (Cr), % 0
0 to 0.25
Copper (Cu), % 0 to 0.030
3.5 to 4.5
Iron (Fe), % 0 to 0.010
0 to 1.0
Magnesium (Mg), % 91.8 to 95.1
1.2 to 1.8
Manganese (Mn), % 0 to 0.15
0 to 0.35
Nickel (Ni), % 0 to 0.0050
1.7 to 2.3
Silicon (Si), % 0 to 0.010
0 to 0.7
Titanium (Ti), % 0
0 to 0.25
Unspecified Rare Earths, % 2.5 to 4.0
0
Zinc (Zn), % 2.0 to 3.0
0 to 0.35
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0 to 0.15