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5383 Aluminum vs. ZK51A Magnesium

5383 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 (3, in this case) are not shown.

For each property being compared, the top bar is 5383 aluminum and the bottom bar is ZK51A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
45
Elongation at Break, % 6.7 to 15
4.7
Fatigue Strength, MPa 130 to 200
62
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
18
Shear Strength, MPa 190 to 220
160
Tensile Strength: Ultimate (UTS), MPa 310 to 370
240
Tensile Strength: Yield (Proof), MPa 150 to 310
150

Thermal Properties

Latent Heat of Fusion, J/g 390
340
Maximum Temperature: Mechanical, °C 200
120
Melting Completion (Liquidus), °C 650
640
Melting Onset (Solidus), °C 540
550
Specific Heat Capacity, J/kg-K 900
970
Thermal Conductivity, W/m-K 130
110
Thermal Expansion, µm/m-K 24
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 29
28
Electrical Conductivity: Equal Weight (Specific), % IACS 97
140

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
13
Density, g/cm3 2.7
1.8
Embodied Carbon, kg CO2/kg material 9.0
24
Embodied Energy, MJ/kg 160
160
Embodied Water, L/kg 1170
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 23 to 40
10
Resilience: Unit (Modulus of Resilience), kJ/m3 170 to 690
260
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
64
Strength to Weight: Axial, points 32 to 38
36
Strength to Weight: Bending, points 38 to 42
47
Thermal Diffusivity, mm2/s 51
61
Thermal Shock Resistance, points 14 to 16
15

Alloy Composition

Aluminum (Al), % 92 to 95.3
0
Chromium (Cr), % 0 to 0.25
0
Copper (Cu), % 0 to 0.2
0 to 0.1
Iron (Fe), % 0 to 0.25
0
Magnesium (Mg), % 4.0 to 5.2
93.1 to 95.9
Manganese (Mn), % 0.7 to 1.0
0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0 to 0.25
0
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.4
3.6 to 5.5
Zirconium (Zr), % 0 to 0.2
0.5 to 1.0
Residuals, % 0
0 to 0.3