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5040 Aluminum vs. ZE41A Magnesium

5040 aluminum belongs to the aluminum alloys classification, while ZE41A magnesium belongs to the magnesium alloys. There are 31 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 5040 aluminum and the bottom bar is ZE41A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 66 to 74
63
Elastic (Young's, Tensile) Modulus, GPa 70
45
Elongation at Break, % 5.7 to 6.8
3.3
Fatigue Strength, MPa 100 to 130
98
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
18
Shear Strength, MPa 140 to 150
150
Tensile Strength: Ultimate (UTS), MPa 240 to 260
210
Tensile Strength: Yield (Proof), MPa 190 to 230
140

Thermal Properties

Latent Heat of Fusion, J/g 400
330
Maximum Temperature: Mechanical, °C 190
150
Melting Completion (Liquidus), °C 650
640
Melting Onset (Solidus), °C 600
540
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
27
Electrical Conductivity: Equal Weight (Specific), % IACS 130
130

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
18
Density, g/cm3 2.8
1.9
Embodied Carbon, kg CO2/kg material 8.3
24
Embodied Energy, MJ/kg 150
170
Embodied Water, L/kg 1180
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 14 to 15
6.1
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 380
220
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
63
Strength to Weight: Axial, points 24 to 26
31
Strength to Weight: Bending, points 31 to 32
41
Thermal Diffusivity, mm2/s 64
59
Thermal Shock Resistance, points 10 to 11
12

Alloy Composition

Aluminum (Al), % 95.2 to 98
0
Chromium (Cr), % 0.1 to 0.3
0
Copper (Cu), % 0 to 0.25
0 to 0.1
Iron (Fe), % 0 to 0.7
0
Magnesium (Mg), % 1.0 to 1.5
91.7 to 95.4
Manganese (Mn), % 0.9 to 1.4
0 to 0.15
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0 to 0.3
0
Unspecified Rare Earths, % 0
0.75 to 1.8
Zinc (Zn), % 0 to 0.25
3.5 to 5.0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3