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8176 Aluminum vs. AZ31C Magnesium

8176 aluminum belongs to the aluminum alloys classification, while AZ31C magnesium belongs to the magnesium alloys.

For each property being compared, the top bar is 8176 aluminum and the bottom bar is AZ31C magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
45
Elongation at Break, % 15
12
Fatigue Strength, MPa 59
150
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
17
Shear Strength, MPa 70
130
Tensile Strength: Ultimate (UTS), MPa 160
260
Tensile Strength: Yield (Proof), MPa 95
200

Thermal Properties

Latent Heat of Fusion, J/g 400
350
Maximum Temperature: Mechanical, °C 170
110
Melting Completion (Liquidus), °C 660
600
Melting Onset (Solidus), °C 650
550
Specific Heat Capacity, J/kg-K 900
990
Thermal Conductivity, W/m-K 230
130
Thermal Expansion, µm/m-K 24
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 61
19
Electrical Conductivity: Equal Weight (Specific), % IACS 200
98

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.7
1.7
Embodied Carbon, kg CO2/kg material 8.2
23
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1190
970

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
28
Resilience: Unit (Modulus of Resilience), kJ/m3 66
440
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 50
70
Strength to Weight: Axial, points 16
42
Strength to Weight: Bending, points 24
53
Thermal Diffusivity, mm2/s 93
74
Thermal Shock Resistance, points 7.0
16

Alloy Composition

Aluminum (Al), % 98.6 to 99.6
2.4 to 3.6
Copper (Cu), % 0
0 to 0.1
Gallium (Ga), % 0 to 0.030
0
Iron (Fe), % 0.4 to 1.0
0
Magnesium (Mg), % 0
93.4 to 97
Manganese (Mn), % 0
0.15 to 1.0
Nickel (Ni), % 0
0 to 0.030
Silicon (Si), % 0.030 to 0.15
0 to 0.1
Zinc (Zn), % 0 to 0.1
0.5 to 1.5
Residuals, % 0
0 to 0.3