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WE43B Magnesium vs. EN AC-45400 Aluminum

WE43B magnesium belongs to the magnesium alloys classification, while EN AC-45400 aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is WE43B magnesium and the bottom bar is EN AC-45400 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
72
Elongation at Break, % 2.2
6.7
Fatigue Strength, MPa 110
55
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
27
Tensile Strength: Ultimate (UTS), MPa 250
260
Tensile Strength: Yield (Proof), MPa 200
130

Thermal Properties

Latent Heat of Fusion, J/g 330
470
Maximum Temperature: Mechanical, °C 180
170
Melting Completion (Liquidus), °C 640
630
Melting Onset (Solidus), °C 550
560
Specific Heat Capacity, J/kg-K 960
880
Thermal Conductivity, W/m-K 51
140
Thermal Expansion, µm/m-K 27
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
30
Electrical Conductivity: Equal Weight (Specific), % IACS 53
95

Otherwise Unclassified Properties

Base Metal Price, % relative 34
10
Density, g/cm3 1.9
2.8
Embodied Carbon, kg CO2/kg material 28
7.8
Embodied Energy, MJ/kg 250
150
Embodied Water, L/kg 910
1100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.2
14
Resilience: Unit (Modulus of Resilience), kJ/m3 430
110
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 61
49
Strength to Weight: Axial, points 36
25
Strength to Weight: Bending, points 46
32
Thermal Diffusivity, mm2/s 28
54
Thermal Shock Resistance, points 15
12

Alloy Composition


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Aluminum (Al), % 0
88.4 to 92.9
Copper (Cu), % 0 to 0.020
2.6 to 3.6
Iron (Fe), % 0 to 0.010
0 to 0.6
Lead (Pb), % 0
0 to 0.1
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 89.8 to 93.5
0 to 0.050
Manganese (Mn), % 0 to 0.030
0 to 0.55
Nickel (Ni), % 0 to 0.0050
0 to 0.1
Silicon (Si), % 0
4.5 to 6.0
Tin (Sn), % 0
0 to 0.050
Titanium (Ti), % 0
0 to 0.25
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 0.2
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0
0 to 0.15