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WE43B Magnesium vs. 6101B Aluminum

WE43B magnesium belongs to the magnesium alloys classification, while 6101B aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is WE43B magnesium and the bottom bar is 6101B aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
68
Elongation at Break, % 2.2
9.1 to 13
Fatigue Strength, MPa 110
62 to 70
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
26
Shear Strength, MPa 140
120 to 150
Tensile Strength: Ultimate (UTS), MPa 250
190 to 250
Tensile Strength: Yield (Proof), MPa 200
140 to 180

Thermal Properties

Latent Heat of Fusion, J/g 330
400
Maximum Temperature: Mechanical, °C 180
160
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 550
630
Specific Heat Capacity, J/kg-K 960
900
Thermal Conductivity, W/m-K 51
210
Thermal Expansion, µm/m-K 27
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
57
Electrical Conductivity: Equal Weight (Specific), % IACS 53
190

Otherwise Unclassified Properties

Base Metal Price, % relative 34
9.5
Density, g/cm3 1.9
2.7
Embodied Carbon, kg CO2/kg material 28
8.3
Embodied Energy, MJ/kg 250
150
Embodied Water, L/kg 910
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.2
20 to 23
Resilience: Unit (Modulus of Resilience), kJ/m3 430
140 to 240
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 61
50
Strength to Weight: Axial, points 36
20 to 25
Strength to Weight: Bending, points 46
27 to 32
Thermal Diffusivity, mm2/s 28
87
Thermal Shock Resistance, points 15
8.5 to 11

Alloy Composition


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Aluminum (Al), % 0
98.2 to 99.3
Copper (Cu), % 0 to 0.020
0 to 0.050
Iron (Fe), % 0 to 0.010
0.1 to 0.3
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 89.8 to 93.5
0.35 to 0.6
Manganese (Mn), % 0 to 0.030
0 to 0.050
Nickel (Ni), % 0 to 0.0050
0
Silicon (Si), % 0
0.3 to 0.6
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