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5456 Aluminum vs. AZ63A Magnesium

5456 aluminum belongs to the aluminum alloys classification, while AZ63A magnesium belongs to the magnesium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is 5456 aluminum and the bottom bar is AZ63A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
46
Elongation at Break, % 11 to 18
2.2 to 8.0
Fatigue Strength, MPa 130 to 210
76 to 83
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
18
Shear Strength, MPa 190 to 210
110 to 160
Tensile Strength: Ultimate (UTS), MPa 320 to 340
190 to 270
Tensile Strength: Yield (Proof), MPa 150 to 250
81 to 120

Thermal Properties

Latent Heat of Fusion, J/g 390
350
Maximum Temperature: Mechanical, °C 190
120
Melting Completion (Liquidus), °C 640
610
Melting Onset (Solidus), °C 570
450
Specific Heat Capacity, J/kg-K 900
980
Thermal Conductivity, W/m-K 120
52 to 65
Thermal Expansion, µm/m-K 24
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 29
12 to 15
Electrical Conductivity: Equal Weight (Specific), % IACS 97
59 to 74

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.7
1.8
Embodied Carbon, kg CO2/kg material 9.0
22
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1170
970

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 33 to 46
3.7 to 16
Resilience: Unit (Modulus of Resilience), kJ/m3 170 to 470
71 to 160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
66
Strength to Weight: Axial, points 33 to 35
29 to 41
Strength to Weight: Bending, points 38 to 40
40 to 51
Thermal Diffusivity, mm2/s 48
29 to 37
Thermal Shock Resistance, points 14 to 15
11 to 16

Alloy Composition

Aluminum (Al), % 92 to 94.8
5.3 to 6.7
Chromium (Cr), % 0.050 to 0.2
0
Copper (Cu), % 0 to 0.1
0 to 0.25
Iron (Fe), % 0 to 0.4
0
Magnesium (Mg), % 4.7 to 5.5
88.6 to 92.1
Manganese (Mn), % 0.5 to 1.0
0.15 to 0.35
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0 to 0.25
0 to 0.3
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.25
2.5 to 3.5
Residuals, % 0
0 to 0.3