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EN AC-46100 Aluminum vs. ZK51A Magnesium

EN AC-46100 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-46100 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 110
62
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 28
18
Tensile Strength: Ultimate (UTS), MPa 270
240
Tensile Strength: Yield (Proof), MPa 160
150

Thermal Properties

Latent Heat of Fusion, J/g 550
340
Maximum Temperature: Mechanical, °C 180
120
Melting Completion (Liquidus), °C 600
640
Melting Onset (Solidus), °C 540
550
Specific Heat Capacity, J/kg-K 890
970
Thermal Conductivity, W/m-K 110
110
Thermal Expansion, µm/m-K 21
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
28
Electrical Conductivity: Equal Weight (Specific), % IACS 90
140

Otherwise Unclassified Properties

Base Metal Price, % relative 10
13
Density, g/cm3 2.7
1.8
Embodied Carbon, kg CO2/kg material 7.6
24
Embodied Energy, MJ/kg 140
160
Embodied Water, L/kg 1030
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.3
10
Resilience: Unit (Modulus of Resilience), kJ/m3 170
260
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 51
64
Strength to Weight: Axial, points 27
36
Strength to Weight: Bending, points 34
47
Thermal Diffusivity, mm2/s 44
61
Thermal Shock Resistance, points 12
15

Alloy Composition

Aluminum (Al), % 80.4 to 88.5
0
Chromium (Cr), % 0 to 0.15
0
Copper (Cu), % 1.5 to 2.5
0 to 0.1
Iron (Fe), % 0 to 1.1
0
Lead (Pb), % 0 to 0.25
0
Magnesium (Mg), % 0 to 0.3
93.1 to 95.9
Manganese (Mn), % 0 to 0.55
0
Nickel (Ni), % 0 to 0.45
0 to 0.010
Silicon (Si), % 10 to 12
0
Tin (Sn), % 0 to 0.15
0
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 1.7
3.6 to 5.5
Zirconium (Zr), % 0
0.5 to 1.0
Residuals, % 0
0 to 0.3