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WE43B Magnesium vs. A357.0 Aluminum

WE43B magnesium belongs to the magnesium alloys classification, while A357.0 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is WE43B magnesium and the bottom bar is A357.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
70
Elongation at Break, % 2.2
3.7
Fatigue Strength, MPa 110
100
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
26
Shear Strength, MPa 140
240
Tensile Strength: Ultimate (UTS), MPa 250
350
Tensile Strength: Yield (Proof), MPa 200
270

Thermal Properties

Latent Heat of Fusion, J/g 330
500
Maximum Temperature: Mechanical, °C 180
170
Melting Completion (Liquidus), °C 640
610
Melting Onset (Solidus), °C 550
560
Specific Heat Capacity, J/kg-K 960
900
Thermal Conductivity, W/m-K 51
160
Thermal Expansion, µm/m-K 27
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
40
Electrical Conductivity: Equal Weight (Specific), % IACS 53
140

Otherwise Unclassified Properties

Base Metal Price, % relative 34
12
Density, g/cm3 1.9
2.6
Embodied Carbon, kg CO2/kg material 28
8.2
Embodied Energy, MJ/kg 250
150
Embodied Water, L/kg 910
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.2
12
Resilience: Unit (Modulus of Resilience), kJ/m3 430
520
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 61
53
Strength to Weight: Axial, points 36
38
Strength to Weight: Bending, points 46
43
Thermal Diffusivity, mm2/s 28
68
Thermal Shock Resistance, points 15
17

Alloy Composition


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Aluminum (Al), % 0
90.8 to 93
Beryllium (Be), % 0
0.040 to 0.070
Copper (Cu), % 0 to 0.020
0 to 0.2
Iron (Fe), % 0 to 0.010
0 to 0.2
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 89.8 to 93.5
0.4 to 0.7
Manganese (Mn), % 0 to 0.030
0 to 0.1
Nickel (Ni), % 0 to 0.0050
0
Silicon (Si), % 0
6.5 to 7.5
Titanium (Ti), % 0
0.040 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 0.15