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WE43B Magnesium vs. EN AC-21200 Aluminum

WE43B magnesium belongs to the magnesium alloys classification, while EN AC-21200 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-21200 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
71
Elongation at Break, % 2.2
3.9 to 6.2
Fatigue Strength, MPa 110
110 to 130
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
27
Tensile Strength: Ultimate (UTS), MPa 250
410 to 440
Tensile Strength: Yield (Proof), MPa 200
270 to 360

Thermal Properties

Latent Heat of Fusion, J/g 330
390
Maximum Temperature: Mechanical, °C 180
170
Melting Completion (Liquidus), °C 640
660
Melting Onset (Solidus), °C 550
550
Specific Heat Capacity, J/kg-K 960
880
Thermal Conductivity, W/m-K 51
130
Thermal Expansion, µm/m-K 27
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
34
Electrical Conductivity: Equal Weight (Specific), % IACS 53
100

Otherwise Unclassified Properties

Base Metal Price, % relative 34
10
Density, g/cm3 1.9
3.0
Embodied Carbon, kg CO2/kg material 28
8.0
Embodied Energy, MJ/kg 250
150
Embodied Water, L/kg 910
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.2
16 to 22
Resilience: Unit (Modulus of Resilience), kJ/m3 430
500 to 930
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 61
46
Strength to Weight: Axial, points 36
38 to 40
Strength to Weight: Bending, points 46
41 to 43
Thermal Diffusivity, mm2/s 28
49
Thermal Shock Resistance, points 15
18 to 19

Alloy Composition


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Aluminum (Al), % 0
93.3 to 95.7
Copper (Cu), % 0 to 0.020
4.0 to 5.0
Iron (Fe), % 0 to 0.010
0 to 0.2
Lead (Pb), % 0
0 to 0.030
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 89.8 to 93.5
0.15 to 0.5
Manganese (Mn), % 0 to 0.030
0.2 to 0.5
Nickel (Ni), % 0 to 0.0050
0 to 0.050
Silicon (Si), % 0
0 to 0.1
Tin (Sn), % 0
0 to 0.030
Titanium (Ti), % 0
0 to 0.1
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 0.1