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6065 Aluminum vs. ZC63A Magnesium

6065 aluminum belongs to the aluminum alloys classification, while ZC63A 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 6065 aluminum and the bottom bar is ZC63A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
48
Elongation at Break, % 4.5 to 11
3.3
Fatigue Strength, MPa 96 to 110
94
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
19
Shear Strength, MPa 190 to 230
130
Tensile Strength: Ultimate (UTS), MPa 310 to 400
220
Tensile Strength: Yield (Proof), MPa 270 to 380
130

Thermal Properties

Latent Heat of Fusion, J/g 400
330
Maximum Temperature: Mechanical, °C 180
98
Melting Completion (Liquidus), °C 640
550
Melting Onset (Solidus), °C 590
470
Specific Heat Capacity, J/kg-K 890
950
Thermal Conductivity, W/m-K 170
120
Thermal Expansion, µm/m-K 23
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 43
32
Electrical Conductivity: Equal Weight (Specific), % IACS 140
140

Otherwise Unclassified Properties

Base Metal Price, % relative 11
13
Density, g/cm3 2.8
2.1
Embodied Carbon, kg CO2/kg material 8.4
22
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1200
920

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17 to 34
6.3
Resilience: Unit (Modulus of Resilience), kJ/m3 540 to 1040
190
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 49
58
Strength to Weight: Axial, points 31 to 40
29
Strength to Weight: Bending, points 36 to 43
38
Thermal Diffusivity, mm2/s 67
58
Thermal Shock Resistance, points 14 to 18
12

Alloy Composition

Aluminum (Al), % 94.4 to 98.2
0
Bismuth (Bi), % 0.5 to 1.5
0
Chromium (Cr), % 0 to 0.15
0
Copper (Cu), % 0.15 to 0.4
2.4 to 3.0
Iron (Fe), % 0 to 0.7
0
Lead (Pb), % 0 to 0.050
0
Magnesium (Mg), % 0.8 to 1.2
89.2 to 91.9
Manganese (Mn), % 0 to 0.15
0.25 to 0.75
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0.4 to 0.8
0 to 0.2
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.25
5.5 to 6.5
Zirconium (Zr), % 0 to 0.15
0
Residuals, % 0
0 to 0.3