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5042 Aluminum vs. ZC63A Magnesium

5042 aluminum belongs to the aluminum alloys classification, while ZC63A magnesium belongs to the magnesium 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 5042 aluminum and the bottom bar is ZC63A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
48
Elongation at Break, % 1.1 to 3.4
3.3
Fatigue Strength, MPa 97 to 120
94
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
19
Shear Strength, MPa 200
130
Tensile Strength: Ultimate (UTS), MPa 340 to 360
220
Tensile Strength: Yield (Proof), MPa 270 to 310
130

Thermal Properties

Latent Heat of Fusion, J/g 400
330
Maximum Temperature: Mechanical, °C 180
98
Melting Completion (Liquidus), °C 640
550
Melting Onset (Solidus), °C 570
470
Specific Heat Capacity, J/kg-K 900
950
Thermal Conductivity, W/m-K 130
120
Thermal Expansion, µm/m-K 24
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
32
Electrical Conductivity: Equal Weight (Specific), % IACS 110
140

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
13
Density, g/cm3 2.7
2.1
Embodied Carbon, kg CO2/kg material 8.8
22
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
920

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.6 to 12
6.3
Resilience: Unit (Modulus of Resilience), kJ/m3 550 to 720
190
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
58
Strength to Weight: Axial, points 35 to 37
29
Strength to Weight: Bending, points 40 to 42
38
Thermal Diffusivity, mm2/s 53
58
Thermal Shock Resistance, points 15 to 16
12

Alloy Composition

Aluminum (Al), % 94.2 to 96.8
0
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 0 to 0.15
2.4 to 3.0
Iron (Fe), % 0 to 0.35
0
Magnesium (Mg), % 3.0 to 4.0
89.2 to 91.9
Manganese (Mn), % 0.2 to 0.5
0.25 to 0.75
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0 to 0.2
0 to 0.2
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.25
5.5 to 6.5
Residuals, % 0
0 to 0.3