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WE43B Magnesium vs. 3004 Aluminum

WE43B magnesium belongs to the magnesium alloys classification, while 3004 aluminum belongs to the aluminum alloys. There are 30 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 3004 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
70
Elongation at Break, % 2.2
1.1 to 19
Fatigue Strength, MPa 110
55 to 120
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
26
Shear Strength, MPa 140
100 to 180
Tensile Strength: Ultimate (UTS), MPa 250
170 to 310
Tensile Strength: Yield (Proof), MPa 200
68 to 270

Thermal Properties

Latent Heat of Fusion, J/g 330
400
Maximum Temperature: Mechanical, °C 180
180
Melting Completion (Liquidus), °C 640
650
Melting Onset (Solidus), °C 550
630
Specific Heat Capacity, J/kg-K 960
900
Thermal Conductivity, W/m-K 51
160
Thermal Expansion, µm/m-K 27
24

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
8.3
Embodied Energy, MJ/kg 250
150
Embodied Water, L/kg 910
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.2
3.2 to 27
Resilience: Unit (Modulus of Resilience), kJ/m3 430
33 to 540
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 61
50
Strength to Weight: Axial, points 36
18 to 31
Strength to Weight: Bending, points 46
25 to 37
Thermal Diffusivity, mm2/s 28
65
Thermal Shock Resistance, points 15
7.6 to 13

Alloy Composition


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Aluminum (Al), % 0
95.6 to 98.2
Copper (Cu), % 0 to 0.020
0 to 0.25
Iron (Fe), % 0 to 0.010
0 to 0.7
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 89.8 to 93.5
0.8 to 1.3
Manganese (Mn), % 0 to 0.030
1.0 to 1.5
Nickel (Ni), % 0 to 0.0050
0
Silicon (Si), % 0
0 to 0.3
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