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AZ92A Magnesium vs. 2117 Aluminum

AZ92A magnesium belongs to the magnesium alloys classification, while 2117 aluminum belongs to the aluminum 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 AZ92A magnesium and the bottom bar is 2117 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 47
71
Elongation at Break, % 2.1 to 6.8
26
Fatigue Strength, MPa 76 to 90
95
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
27
Shear Strength, MPa 97 to 160
200
Tensile Strength: Ultimate (UTS), MPa 170 to 270
300
Tensile Strength: Yield (Proof), MPa 83 to 140
170

Thermal Properties

Latent Heat of Fusion, J/g 350
400
Maximum Temperature: Mechanical, °C 130
220
Melting Completion (Liquidus), °C 590
650
Melting Onset (Solidus), °C 440
550
Specific Heat Capacity, J/kg-K 980
880
Thermal Conductivity, W/m-K 44 to 58
150
Thermal Expansion, µm/m-K 26
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11 to 12
40
Electrical Conductivity: Equal Weight (Specific), % IACS 53 to 62
120

Otherwise Unclassified Properties

Base Metal Price, % relative 12
10
Density, g/cm3 1.8
3.0
Embodied Carbon, kg CO2/kg material 22
8.2
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 980
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.0 to 14
64
Resilience: Unit (Modulus of Resilience), kJ/m3 73 to 220
190
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 67
47
Strength to Weight: Axial, points 26 to 41
28
Strength to Weight: Bending, points 38 to 51
33
Thermal Diffusivity, mm2/s 25 to 33
59
Thermal Shock Resistance, points 10 to 16
12

Alloy Composition

Aluminum (Al), % 8.3 to 9.7
91 to 97.6
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 0 to 0.25
2.2 to 4.5
Iron (Fe), % 0
0 to 0.7
Magnesium (Mg), % 86.7 to 90
0.2 to 1.0
Manganese (Mn), % 0.1 to 0.35
0.4 to 1.0
Nickel (Ni), % 0 to 0.010
0
Silicon (Si), % 0 to 0.3
0.2 to 0.8
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 1.6 to 2.4
0 to 0.25
Zirconium (Zr), % 0
0 to 0.25
Residuals, % 0
0 to 0.15