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WE43B Magnesium vs. A242.0 Aluminum

WE43B magnesium belongs to the magnesium alloys classification, while A242.0 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 WE43B magnesium and the bottom bar is A242.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
73
Elongation at Break, % 2.2
1.6
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
27
Tensile Strength: Ultimate (UTS), MPa 250
220

Thermal Properties

Latent Heat of Fusion, J/g 330
390
Maximum Temperature: Mechanical, °C 180
210
Melting Completion (Liquidus), °C 640
680
Melting Onset (Solidus), °C 550
550
Specific Heat Capacity, J/kg-K 960
870
Thermal Conductivity, W/m-K 51
140
Thermal Expansion, µm/m-K 27
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
37
Electrical Conductivity: Equal Weight (Specific), % IACS 53
110

Otherwise Unclassified Properties

Base Metal Price, % relative 34
12
Density, g/cm3 1.9
3.1
Embodied Carbon, kg CO2/kg material 28
8.3
Embodied Energy, MJ/kg 250
150
Embodied Water, L/kg 910
1130

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 61
45
Strength to Weight: Axial, points 36
20
Strength to Weight: Bending, points 46
26
Thermal Diffusivity, mm2/s 28
52
Thermal Shock Resistance, points 15
9.3

Alloy Composition


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Aluminum (Al), % 0
89.3 to 93.1
Chromium (Cr), % 0
0.15 to 0.25
Copper (Cu), % 0 to 0.020
3.7 to 4.5
Iron (Fe), % 0 to 0.010
0 to 0.8
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 89.8 to 93.5
1.2 to 1.7
Manganese (Mn), % 0 to 0.030
0 to 0.1
Nickel (Ni), % 0 to 0.0050
1.8 to 2.3
Silicon (Si), % 0
0 to 0.6
Titanium (Ti), % 0
0.070 to 0.2
Unspecified Rare Earths, % 2.4 to 4.4
0
Yttrium (Y), % 3.7 to 4.3
0
Zinc (Zn), % 0 to 0.2
0 to 0.1
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0
0 to 0.15