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EN AC-45100 Aluminum vs. ZK51A Magnesium

EN AC-45100 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-45100 aluminum and the bottom bar is ZK51A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
45
Elongation at Break, % 1.0 to 2.8
4.7
Fatigue Strength, MPa 82 to 99
62
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
18
Tensile Strength: Ultimate (UTS), MPa 300 to 360
240
Tensile Strength: Yield (Proof), MPa 210 to 320
150

Thermal Properties

Latent Heat of Fusion, J/g 470
340
Maximum Temperature: Mechanical, °C 170
120
Melting Completion (Liquidus), °C 630
640
Melting Onset (Solidus), °C 550
550
Specific Heat Capacity, J/kg-K 890
970
Thermal Conductivity, W/m-K 140
110
Thermal Expansion, µm/m-K 22
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
28
Electrical Conductivity: Equal Weight (Specific), % IACS 95
140

Otherwise Unclassified Properties

Base Metal Price, % relative 10
13
Density, g/cm3 2.8
1.8
Embodied Carbon, kg CO2/kg material 7.9
24
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1100
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.5 to 7.6
10
Resilience: Unit (Modulus of Resilience), kJ/m3 290 to 710
260
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 49
64
Strength to Weight: Axial, points 30 to 35
36
Strength to Weight: Bending, points 35 to 39
47
Thermal Diffusivity, mm2/s 54
61
Thermal Shock Resistance, points 14 to 16
15

Alloy Composition

Aluminum (Al), % 88 to 92.8
0
Copper (Cu), % 2.6 to 3.6
0 to 0.1
Iron (Fe), % 0 to 0.6
0
Lead (Pb), % 0 to 0.1
0
Magnesium (Mg), % 0.15 to 0.45
93.1 to 95.9
Manganese (Mn), % 0 to 0.55
0
Nickel (Ni), % 0 to 0.1
0 to 0.010
Silicon (Si), % 4.5 to 6.0
0
Tin (Sn), % 0 to 0.050
0
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.2
3.6 to 5.5
Zirconium (Zr), % 0
0.5 to 1.0
Residuals, % 0
0 to 0.3