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3105-H14 Aluminum vs. AZ31B-H24 Magnesium

3105-H14 aluminum belongs to the aluminum alloys classification, while AZ31B-H24 magnesium belongs to the magnesium alloys. There are 29 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 3105-H14 aluminum and the bottom bar is AZ31B-H24 magnesium.

Mechanical Properties

Brinell Hardness 48
73
Elastic (Young's, Tensile) Modulus, GPa 69
45
Elongation at Break, % 2.7
8.3
Fatigue Strength, MPa 69
100
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
17
Shear Strength, MPa 110
160
Tensile Strength: Ultimate (UTS), MPa 170
270
Tensile Strength: Yield (Proof), MPa 150
180

Thermal Properties

Melting Completion (Liquidus), °C 660
600
Melting Onset (Solidus), °C 640
600
Specific Heat Capacity, J/kg-K 900
990
Thermal Conductivity, W/m-K 170
100
Thermal Expansion, µm/m-K 24
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 44
18
Electrical Conductivity: Equal Weight (Specific), % IACS 140
95

Otherwise Unclassified Properties

Base Metal Price, % relative 9.4
12
Density, g/cm3 2.8
1.7
Embodied Carbon, kg CO2/kg material 8.2
23
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1180
970

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.5
20
Resilience: Unit (Modulus of Resilience), kJ/m3 160
370
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 50
70
Strength to Weight: Axial, points 17
44
Strength to Weight: Bending, points 25
55
Thermal Diffusivity, m2/s 68
62
Thermal Shock Resistance, points 7.5
16

Alloy Composition

Aluminum (Al), % 96 to 99.5
2.4 to 3.6
Calcium (Ca), % 0
0 to 0.040
Chromium (Cr), % 0 to 0.2
0
Copper (Cu), % 0 to 0.3
0 to 0.050
Iron (Fe), % 0 to 0.7
0 to 0.050
Magnesium (Mg), % 0.2 to 0.8
93.6 to 97.1
Manganese (Mn), % 0.3 to 0.8
0.050 to 1.0
Nickel (Ni), % 0
0 to 0.0050
Silicon (Si), % 0 to 0.6
0 to 0.1
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.4
0.5 to 1.5
Residuals, % 0 to 0.15
0 to 0.3