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WE43B Magnesium vs. 5070 Aluminum

WE43B magnesium belongs to the magnesium alloys classification, while 5070 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 WE43B magnesium and the bottom bar is 5070 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
68
Elongation at Break, % 2.2
20
Fatigue Strength, MPa 110
150
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
26
Shear Strength, MPa 140
190
Tensile Strength: Ultimate (UTS), MPa 250
300
Tensile Strength: Yield (Proof), MPa 200
140

Thermal Properties

Latent Heat of Fusion, J/g 330
390
Maximum Temperature: Mechanical, °C 180
190
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 550
550
Specific Heat Capacity, J/kg-K 960
900
Thermal Conductivity, W/m-K 51
130
Thermal Expansion, µm/m-K 27
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
31
Electrical Conductivity: Equal Weight (Specific), % IACS 53
100

Otherwise Unclassified Properties

Base Metal Price, % relative 34
9.5
Density, g/cm3 1.9
2.7
Embodied Carbon, kg CO2/kg material 28
8.8
Embodied Energy, MJ/kg 250
150
Embodied Water, L/kg 910
1170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.2
51
Resilience: Unit (Modulus of Resilience), kJ/m3 430
150
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 61
50
Strength to Weight: Axial, points 36
31
Strength to Weight: Bending, points 46
37
Thermal Diffusivity, mm2/s 28
53
Thermal Shock Resistance, points 15
14

Alloy Composition


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Aluminum (Al), % 0
92.4 to 95.7
Chromium (Cr), % 0
0 to 0.3
Copper (Cu), % 0 to 0.020
0 to 0.25
Iron (Fe), % 0 to 0.010
0 to 0.4
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 89.8 to 93.5
3.5 to 4.5
Manganese (Mn), % 0 to 0.030
0.4 to 0.8
Nickel (Ni), % 0 to 0.0050
0
Silicon (Si), % 0
0 to 0.25
Titanium (Ti), % 0
0 to 0.15
Unspecified Rare Earths, % 2.4 to 4.4
0
Yttrium (Y), % 3.7 to 4.3
0
Zinc (Zn), % 0 to 0.2
0.4 to 0.8
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0
0 to 0.15