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4115 Aluminum vs. AZ63A Magnesium

4115 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 4115 aluminum and the bottom bar is AZ63A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
46
Elongation at Break, % 1.1 to 11
2.2 to 8.0
Fatigue Strength, MPa 39 to 76
76 to 83
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
18
Shear Strength, MPa 71 to 130
110 to 160
Tensile Strength: Ultimate (UTS), MPa 120 to 220
190 to 270
Tensile Strength: Yield (Proof), MPa 39 to 190
81 to 120

Thermal Properties

Latent Heat of Fusion, J/g 420
350
Maximum Temperature: Mechanical, °C 160
120
Melting Completion (Liquidus), °C 640
610
Melting Onset (Solidus), °C 590
450
Specific Heat Capacity, J/kg-K 900
980
Thermal Conductivity, W/m-K 160
52 to 65
Thermal Expansion, µm/m-K 23
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 41
12 to 15
Electrical Conductivity: Equal Weight (Specific), % IACS 140
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 8.1
22
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1160
970

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.1 to 10
3.7 to 16
Resilience: Unit (Modulus of Resilience), kJ/m3 11 to 270
71 to 160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
66
Strength to Weight: Axial, points 12 to 23
29 to 41
Strength to Weight: Bending, points 20 to 30
40 to 51
Thermal Diffusivity, mm2/s 66
29 to 37
Thermal Shock Resistance, points 5.2 to 9.9
11 to 16

Alloy Composition

Aluminum (Al), % 94.6 to 97.4
5.3 to 6.7
Copper (Cu), % 0.1 to 0.5
0 to 0.25
Iron (Fe), % 0 to 0.7
0
Magnesium (Mg), % 0.1 to 0.5
88.6 to 92.1
Manganese (Mn), % 0.6 to 1.2
0.15 to 0.35
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 1.8 to 2.2
0 to 0.3
Zinc (Zn), % 0 to 0.2
2.5 to 3.5
Residuals, % 0
0 to 0.3