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EN AC-48000 Aluminum vs. ZK51A Magnesium

EN AC-48000 aluminum belongs to the aluminum alloys classification, while ZK51A magnesium belongs to the magnesium alloys. There are 29 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 EN AC-48000 aluminum and the bottom bar is ZK51A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
45
Elongation at Break, % 1.0
4.7
Fatigue Strength, MPa 85 to 86
62
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 28
18
Tensile Strength: Ultimate (UTS), MPa 220 to 310
240
Tensile Strength: Yield (Proof), MPa 210 to 270
150

Thermal Properties

Latent Heat of Fusion, J/g 570
340
Maximum Temperature: Mechanical, °C 190
120
Melting Completion (Liquidus), °C 600
640
Melting Onset (Solidus), °C 560
550
Specific Heat Capacity, J/kg-K 890
970
Thermal Conductivity, W/m-K 130
110
Thermal Expansion, µm/m-K 21
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
28
Electrical Conductivity: Equal Weight (Specific), % IACS 110
140

Otherwise Unclassified Properties

Base Metal Price, % relative 10
13
Density, g/cm3 2.7
1.8
Embodied Carbon, kg CO2/kg material 7.9
24
Embodied Energy, MJ/kg 140
160
Embodied Water, L/kg 1030
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.2 to 3.0
10
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 510
260
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 53
64
Strength to Weight: Axial, points 23 to 33
36
Strength to Weight: Bending, points 31 to 39
47
Thermal Diffusivity, mm2/s 54
61
Thermal Shock Resistance, points 10 to 15
15

Alloy Composition

Aluminum (Al), % 80.4 to 87.2
0
Copper (Cu), % 0.8 to 1.5
0 to 0.1
Iron (Fe), % 0 to 0.7
0
Magnesium (Mg), % 0.8 to 1.5
93.1 to 95.9
Manganese (Mn), % 0 to 0.35
0
Nickel (Ni), % 0.7 to 1.3
0 to 0.010
Silicon (Si), % 10.5 to 13.5
0
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.35
3.6 to 5.5
Zirconium (Zr), % 0
0.5 to 1.0
Residuals, % 0
0 to 0.3