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WE43B Magnesium vs. EN AC-45100 Aluminum

WE43B magnesium belongs to the magnesium alloys classification, while EN AC-45100 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-45100 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
72
Elongation at Break, % 2.2
1.0 to 2.8
Fatigue Strength, MPa 110
82 to 99
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
27
Tensile Strength: Ultimate (UTS), MPa 250
300 to 360
Tensile Strength: Yield (Proof), MPa 200
210 to 320

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
550
Specific Heat Capacity, J/kg-K 960
890
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
7.9
Embodied Energy, MJ/kg 250
150
Embodied Water, L/kg 910
1100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.2
3.5 to 7.6
Resilience: Unit (Modulus of Resilience), kJ/m3 430
290 to 710
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 61
49
Strength to Weight: Axial, points 36
30 to 35
Strength to Weight: Bending, points 46
35 to 39
Thermal Diffusivity, mm2/s 28
54
Thermal Shock Resistance, points 15
14 to 16

Alloy Composition


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Aluminum (Al), % 0
88 to 92.8
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
0.15 to 0.45
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