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ZE41A Magnesium vs. 5042 Aluminum

ZE41A magnesium belongs to the magnesium alloys classification, while 5042 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ZE41A magnesium and the bottom bar is 5042 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
68
Elongation at Break, % 3.3
1.1 to 3.4
Fatigue Strength, MPa 98
97 to 120
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
26
Shear Strength, MPa 150
200
Tensile Strength: Ultimate (UTS), MPa 210
340 to 360
Tensile Strength: Yield (Proof), MPa 140
270 to 310

Thermal Properties

Latent Heat of Fusion, J/g 330
400
Maximum Temperature: Mechanical, °C 150
180
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 540
570
Specific Heat Capacity, J/kg-K 970
900
Thermal Conductivity, W/m-K 110
130
Thermal Expansion, µm/m-K 27
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
33
Electrical Conductivity: Equal Weight (Specific), % IACS 130
110

Otherwise Unclassified Properties

Base Metal Price, % relative 18
9.5
Density, g/cm3 1.9
2.7
Embodied Carbon, kg CO2/kg material 24
8.8
Embodied Energy, MJ/kg 170
150
Embodied Water, L/kg 940
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.1
3.6 to 12
Resilience: Unit (Modulus of Resilience), kJ/m3 220
550 to 720
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 63
50
Strength to Weight: Axial, points 31
35 to 37
Strength to Weight: Bending, points 41
40 to 42
Thermal Diffusivity, mm2/s 59
53
Thermal Shock Resistance, points 12
15 to 16

Alloy Composition

Aluminum (Al), % 0
94.2 to 96.8
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 0 to 0.1
0 to 0.15
Iron (Fe), % 0
0 to 0.35
Magnesium (Mg), % 91.7 to 95.4
3.0 to 4.0
Manganese (Mn), % 0 to 0.15
0.2 to 0.5
Nickel (Ni), % 0 to 0.010
0
Silicon (Si), % 0
0 to 0.2
Titanium (Ti), % 0
0 to 0.1
Unspecified Rare Earths, % 0.75 to 1.8
0
Zinc (Zn), % 3.5 to 5.0
0 to 0.25
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0
0 to 0.15