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2618 Aluminum vs. AZ92A Magnesium

2618 aluminum belongs to the aluminum alloys classification, while AZ92A 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 2618 aluminum and the bottom bar is AZ92A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
47
Elongation at Break, % 5.8
2.1 to 6.8
Fatigue Strength, MPa 110
76 to 90
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
18
Shear Strength, MPa 260
97 to 160
Tensile Strength: Ultimate (UTS), MPa 420
170 to 270
Tensile Strength: Yield (Proof), MPa 350
83 to 140

Thermal Properties

Latent Heat of Fusion, J/g 390
350
Maximum Temperature: Mechanical, °C 210
130
Melting Completion (Liquidus), °C 640
590
Melting Onset (Solidus), °C 550
440
Specific Heat Capacity, J/kg-K 880
980
Thermal Conductivity, W/m-K 160
44 to 58
Thermal Expansion, µm/m-K 22
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
11 to 12
Electrical Conductivity: Equal Weight (Specific), % IACS 110
53 to 62

Otherwise Unclassified Properties

Base Metal Price, % relative 11
12
Density, g/cm3 2.9
1.8
Embodied Carbon, kg CO2/kg material 8.3
22
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1150
980

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 23
4.0 to 14
Resilience: Unit (Modulus of Resilience), kJ/m3 850
73 to 220
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 47
67
Strength to Weight: Axial, points 40
26 to 41
Strength to Weight: Bending, points 42
38 to 51
Thermal Diffusivity, mm2/s 62
25 to 33
Thermal Shock Resistance, points 19
10 to 16

Alloy Composition

Aluminum (Al), % 92.4 to 94.9
8.3 to 9.7
Copper (Cu), % 1.9 to 2.7
0 to 0.25
Iron (Fe), % 0.9 to 1.3
0
Magnesium (Mg), % 1.3 to 1.8
86.7 to 90
Manganese (Mn), % 0
0.1 to 0.35
Nickel (Ni), % 0.9 to 1.2
0 to 0.010
Silicon (Si), % 0.1 to 0.25
0 to 0.3
Titanium (Ti), % 0.040 to 0.1
0
Zinc (Zn), % 0 to 0.1
1.6 to 2.4
Residuals, % 0
0 to 0.3