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WE43B Magnesium vs. 4007 Aluminum

WE43B magnesium belongs to the magnesium alloys classification, while 4007 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 4007 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
71
Elongation at Break, % 2.2
5.1 to 23
Fatigue Strength, MPa 110
46 to 88
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
27
Shear Strength, MPa 140
80 to 90
Tensile Strength: Ultimate (UTS), MPa 250
130 to 160
Tensile Strength: Yield (Proof), MPa 200
50 to 120

Thermal Properties

Latent Heat of Fusion, J/g 330
410
Maximum Temperature: Mechanical, °C 180
170
Melting Completion (Liquidus), °C 640
650
Melting Onset (Solidus), °C 550
590
Specific Heat Capacity, J/kg-K 960
890
Thermal Conductivity, W/m-K 51
170
Thermal Expansion, µm/m-K 27
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
42
Electrical Conductivity: Equal Weight (Specific), % IACS 53
140

Otherwise Unclassified Properties

Base Metal Price, % relative 34
9.5
Density, g/cm3 1.9
2.8
Embodied Carbon, kg CO2/kg material 28
8.1
Embodied Energy, MJ/kg 250
150
Embodied Water, L/kg 910
1160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.2
7.4 to 23
Resilience: Unit (Modulus of Resilience), kJ/m3 430
18 to 110
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 61
49
Strength to Weight: Axial, points 36
12 to 15
Strength to Weight: Bending, points 46
20 to 23
Thermal Diffusivity, mm2/s 28
67
Thermal Shock Resistance, points 15
5.5 to 6.7

Alloy Composition


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Aluminum (Al), % 0
94.1 to 97.6
Chromium (Cr), % 0
0.050 to 0.25
Cobalt (Co), % 0
0 to 0.050
Copper (Cu), % 0 to 0.020
0 to 0.2
Iron (Fe), % 0 to 0.010
0.4 to 1.0
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 89.8 to 93.5
0 to 0.2
Manganese (Mn), % 0 to 0.030
0.8 to 1.5
Nickel (Ni), % 0 to 0.0050
0.15 to 0.7
Silicon (Si), % 0
1.0 to 1.7
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 0.15