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5040 Aluminum vs. ISO-WD32260 Magnesium

5040 aluminum belongs to the aluminum alloys classification, while ISO-WD32260 magnesium belongs to the magnesium 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 5040 aluminum and the bottom bar is ISO-WD32260 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
46
Elongation at Break, % 5.7 to 6.8
4.5 to 6.0
Fatigue Strength, MPa 100 to 130
150 to 190
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
18
Shear Strength, MPa 140 to 150
190 to 200
Tensile Strength: Ultimate (UTS), MPa 240 to 260
330 to 340
Tensile Strength: Yield (Proof), MPa 190 to 230
230 to 250

Thermal Properties

Latent Heat of Fusion, J/g 400
330
Maximum Temperature: Mechanical, °C 190
120
Melting Completion (Liquidus), °C 650
600
Melting Onset (Solidus), °C 600
520
Specific Heat Capacity, J/kg-K 900
970
Thermal Conductivity, W/m-K 160
110
Thermal Expansion, µm/m-K 23
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 41
28
Electrical Conductivity: Equal Weight (Specific), % IACS 130
140

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
13
Density, g/cm3 2.8
1.9
Embodied Carbon, kg CO2/kg material 8.3
23
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1180
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 14 to 15
14 to 19
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 380
560 to 700
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
63
Strength to Weight: Axial, points 24 to 26
48 to 51
Strength to Weight: Bending, points 31 to 32
56 to 58
Thermal Diffusivity, mm2/s 64
63
Thermal Shock Resistance, points 10 to 11
19 to 20

Alloy Composition

Aluminum (Al), % 95.2 to 98
0
Chromium (Cr), % 0.1 to 0.3
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 0 to 0.7
0
Magnesium (Mg), % 1.0 to 1.5
92.7 to 94.8
Manganese (Mn), % 0.9 to 1.4
0
Silicon (Si), % 0 to 0.3
0
Zinc (Zn), % 0 to 0.25
4.8 to 6.2
Zirconium (Zr), % 0
0.45 to 0.8
Residuals, % 0
0 to 0.3