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WE43B Magnesium vs. EN AC-51200 Aluminum

WE43B magnesium belongs to the magnesium alloys classification, while EN AC-51200 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-51200 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
67
Elongation at Break, % 2.2
1.1
Fatigue Strength, MPa 110
100
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
25
Tensile Strength: Ultimate (UTS), MPa 250
220
Tensile Strength: Yield (Proof), MPa 200
150

Thermal Properties

Latent Heat of Fusion, J/g 330
410
Maximum Temperature: Mechanical, °C 180
170
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 550
570
Specific Heat Capacity, J/kg-K 960
910
Thermal Conductivity, W/m-K 51
92
Thermal Expansion, µm/m-K 27
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
22
Electrical Conductivity: Equal Weight (Specific), % IACS 53
74

Otherwise Unclassified Properties

Base Metal Price, % relative 34
9.5
Density, g/cm3 1.9
2.6
Embodied Carbon, kg CO2/kg material 28
9.6
Embodied Energy, MJ/kg 250
150
Embodied Water, L/kg 910
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.2
2.2
Resilience: Unit (Modulus of Resilience), kJ/m3 430
160
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 61
51
Strength to Weight: Axial, points 36
24
Strength to Weight: Bending, points 46
31
Thermal Diffusivity, mm2/s 28
39
Thermal Shock Resistance, points 15
10

Alloy Composition


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Aluminum (Al), % 0
84.5 to 92
Copper (Cu), % 0 to 0.020
0 to 0.1
Iron (Fe), % 0 to 0.010
0 to 1.0
Lead (Pb), % 0
0 to 0.1
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 89.8 to 93.5
8.0 to 10.5
Manganese (Mn), % 0 to 0.030
0 to 0.55
Nickel (Ni), % 0 to 0.0050
0 to 0.1
Silicon (Si), % 0
0 to 2.5
Tin (Sn), % 0
0 to 0.1
Titanium (Ti), % 0
0 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 0.25
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0
0 to 0.15