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EN-MC21210 Magnesium vs. 851.0 Aluminum

EN-MC21210 magnesium belongs to the magnesium alloys classification, while 851.0 aluminum belongs to the aluminum alloys. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is EN-MC21210 magnesium and the bottom bar is 851.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
69
Elongation at Break, % 14
3.9 to 9.1
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
26
Tensile Strength: Ultimate (UTS), MPa 190
130 to 140

Thermal Properties

Latent Heat of Fusion, J/g 350
410
Maximum Temperature: Mechanical, °C 100
180
Melting Completion (Liquidus), °C 600
630
Melting Onset (Solidus), °C 570
360
Specific Heat Capacity, J/kg-K 1000
850
Thermal Conductivity, W/m-K 120
180
Thermal Expansion, µm/m-K 27
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
46
Electrical Conductivity: Equal Weight (Specific), % IACS 130
140

Otherwise Unclassified Properties

Base Metal Price, % relative 12
14
Density, g/cm3 1.6
3.1
Embodied Carbon, kg CO2/kg material 24
8.4
Embodied Energy, MJ/kg 160
160
Embodied Water, L/kg 980
1140

Common Calculations

Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 72
45
Strength to Weight: Axial, points 32
12 to 13
Strength to Weight: Bending, points 44
19 to 20
Thermal Diffusivity, mm2/s 76
69
Thermal Shock Resistance, points 11
6.1 to 6.3

Alloy Composition


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Aluminum (Al), % 1.6 to 2.6
86.6 to 91.5
Copper (Cu), % 0 to 0.010
0.7 to 1.3
Iron (Fe), % 0 to 0.0050
0 to 0.7
Magnesium (Mg), % 96.3 to 98.3
0 to 0.1
Manganese (Mn), % 0.1 to 0.7
0 to 0.1
Nickel (Ni), % 0 to 0.0020
0.3 to 0.7
Silicon (Si), % 0 to 0.1
2.0 to 3.0
Tin (Sn), % 0
5.5 to 7.0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.010
0 to 0.3