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5056 Aluminum vs. AZ92A Magnesium

5056 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 5056 aluminum and the bottom bar is AZ92A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 67
47
Elongation at Break, % 4.9 to 31
2.1 to 6.8
Fatigue Strength, MPa 140 to 200
76 to 90
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 25
18
Shear Strength, MPa 170 to 240
97 to 160
Tensile Strength: Ultimate (UTS), MPa 290 to 460
170 to 270
Tensile Strength: Yield (Proof), MPa 150 to 410
83 to 140

Thermal Properties

Latent Heat of Fusion, J/g 400
350
Maximum Temperature: Mechanical, °C 190
130
Melting Completion (Liquidus), °C 640
590
Melting Onset (Solidus), °C 570
440
Specific Heat Capacity, J/kg-K 910
980
Thermal Conductivity, W/m-K 130
44 to 58
Thermal Expansion, µm/m-K 24
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 29
11 to 12
Electrical Conductivity: Equal Weight (Specific), % IACS 99
53 to 62

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.7
1.8
Embodied Carbon, kg CO2/kg material 9.0
22
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1180
980

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12 to 140
4.0 to 14
Resilience: Unit (Modulus of Resilience), kJ/m3 170 to 1220
73 to 220
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 51
67
Strength to Weight: Axial, points 30 to 48
26 to 41
Strength to Weight: Bending, points 36 to 50
38 to 51
Thermal Diffusivity, mm2/s 53
25 to 33
Thermal Shock Resistance, points 13 to 20
10 to 16

Alloy Composition

Aluminum (Al), % 93 to 95.4
8.3 to 9.7
Chromium (Cr), % 0.050 to 0.2
0
Copper (Cu), % 0 to 0.1
0 to 0.25
Iron (Fe), % 0 to 0.4
0
Magnesium (Mg), % 4.5 to 5.6
86.7 to 90
Manganese (Mn), % 0.050 to 0.2
0.1 to 0.35
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0 to 0.3
0 to 0.3
Zinc (Zn), % 0 to 0.1
1.6 to 2.4
Residuals, % 0
0 to 0.3