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EN AC-41000 Aluminum vs. ZK51A Magnesium

EN AC-41000 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-41000 aluminum and the bottom bar is ZK51A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
45
Elongation at Break, % 4.5
4.7
Fatigue Strength, MPa 58 to 71
62
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
18
Tensile Strength: Ultimate (UTS), MPa 170 to 280
240
Tensile Strength: Yield (Proof), MPa 80 to 210
150

Thermal Properties

Latent Heat of Fusion, J/g 420
340
Maximum Temperature: Mechanical, °C 170
120
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 630
550
Specific Heat Capacity, J/kg-K 900
970
Thermal Conductivity, W/m-K 170
110
Thermal Expansion, µm/m-K 23
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 38
28
Electrical Conductivity: Equal Weight (Specific), % IACS 130
140

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
13
Density, g/cm3 2.7
1.8
Embodied Carbon, kg CO2/kg material 8.2
24
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1160
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.4 to 11
10
Resilience: Unit (Modulus of Resilience), kJ/m3 46 to 300
260
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 51
64
Strength to Weight: Axial, points 18 to 29
36
Strength to Weight: Bending, points 26 to 35
47
Thermal Diffusivity, mm2/s 69
61
Thermal Shock Resistance, points 7.8 to 13
15

Alloy Composition

Aluminum (Al), % 95.2 to 97.6
0
Copper (Cu), % 0 to 0.1
0 to 0.1
Iron (Fe), % 0 to 0.6
0
Lead (Pb), % 0 to 0.050
0
Magnesium (Mg), % 0.45 to 0.65
93.1 to 95.9
Manganese (Mn), % 0.3 to 0.5
0
Nickel (Ni), % 0 to 0.050
0 to 0.010
Silicon (Si), % 1.6 to 2.4
0
Tin (Sn), % 0 to 0.050
0
Titanium (Ti), % 0.050 to 0.2
0
Zinc (Zn), % 0 to 0.1
3.6 to 5.5
Zirconium (Zr), % 0
0.5 to 1.0
Residuals, % 0
0 to 0.3