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WE43B Magnesium vs. 390.0 Aluminum

WE43B magnesium belongs to the magnesium alloys classification, while 390.0 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 390.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
75
Elongation at Break, % 2.2
1.0
Fatigue Strength, MPa 110
76 to 110
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
28
Tensile Strength: Ultimate (UTS), MPa 250
280 to 300
Tensile Strength: Yield (Proof), MPa 200
240 to 270

Thermal Properties

Latent Heat of Fusion, J/g 330
640
Maximum Temperature: Mechanical, °C 180
170
Melting Completion (Liquidus), °C 640
650
Melting Onset (Solidus), °C 550
560
Specific Heat Capacity, J/kg-K 960
880
Thermal Conductivity, W/m-K 51
130
Thermal Expansion, µm/m-K 27
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
24 to 25
Electrical Conductivity: Equal Weight (Specific), % IACS 53
79 to 83

Otherwise Unclassified Properties

Base Metal Price, % relative 34
11
Density, g/cm3 1.9
2.7
Embodied Carbon, kg CO2/kg material 28
7.3
Embodied Energy, MJ/kg 250
130
Embodied Water, L/kg 910
950

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.2
2.7 to 2.9
Resilience: Unit (Modulus of Resilience), kJ/m3 430
380 to 470
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 61
52
Strength to Weight: Axial, points 36
28 to 30
Strength to Weight: Bending, points 46
35 to 36
Thermal Diffusivity, mm2/s 28
56
Thermal Shock Resistance, points 15
14 to 15

Alloy Composition


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Aluminum (Al), % 0
74.5 to 79.6
Copper (Cu), % 0 to 0.020
4.0 to 5.0
Iron (Fe), % 0 to 0.010
0 to 1.3
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 89.8 to 93.5
0.45 to 0.65
Manganese (Mn), % 0 to 0.030
0 to 0.1
Nickel (Ni), % 0 to 0.0050
0
Silicon (Si), % 0
16 to 18
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 0.1
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0
0 to 0.2