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2017A Aluminum vs. ZK51A Magnesium

2017A aluminum belongs to the aluminum alloys classification, while ZK51A magnesium belongs to the magnesium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is 2017A aluminum and the bottom bar is ZK51A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
45
Elongation at Break, % 2.2 to 14
4.7
Fatigue Strength, MPa 92 to 130
62
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
18
Shear Strength, MPa 120 to 270
160
Tensile Strength: Ultimate (UTS), MPa 200 to 460
240
Tensile Strength: Yield (Proof), MPa 110 to 290
150

Thermal Properties

Latent Heat of Fusion, J/g 390
340
Maximum Temperature: Mechanical, °C 220
120
Melting Completion (Liquidus), °C 650
640
Melting Onset (Solidus), °C 510
550
Specific Heat Capacity, J/kg-K 880
970
Thermal Conductivity, W/m-K 150
110
Thermal Expansion, µm/m-K 23
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
28
Electrical Conductivity: Equal Weight (Specific), % IACS 100
140

Otherwise Unclassified Properties

Base Metal Price, % relative 11
13
Density, g/cm3 3.0
1.8
Embodied Carbon, kg CO2/kg material 8.2
24
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1140
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.7 to 53
10
Resilience: Unit (Modulus of Resilience), kJ/m3 90 to 570
260
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 46
64
Strength to Weight: Axial, points 19 to 42
36
Strength to Weight: Bending, points 26 to 44
47
Thermal Diffusivity, mm2/s 56
61
Thermal Shock Resistance, points 8.9 to 20
15

Alloy Composition

Aluminum (Al), % 91.3 to 95.5
0
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 3.5 to 4.5
0 to 0.1
Iron (Fe), % 0 to 0.7
0
Magnesium (Mg), % 0.4 to 1.0
93.1 to 95.9
Manganese (Mn), % 0.4 to 1.0
0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0.2 to 0.8
0
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.25
3.6 to 5.5
Zirconium (Zr), % 0 to 0.25
0.5 to 1.0
Residuals, % 0
0 to 0.3