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850.0 Aluminum vs. AZ31C Magnesium

850.0 aluminum belongs to the aluminum alloys classification, while AZ31C 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 850.0 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, % 7.9
12
Fatigue Strength, MPa 59
150
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
17
Shear Strength, MPa 100
130
Tensile Strength: Ultimate (UTS), MPa 140
260
Tensile Strength: Yield (Proof), MPa 76
200

Thermal Properties

Latent Heat of Fusion, J/g 380
350
Maximum Temperature: Mechanical, °C 190
110
Melting Completion (Liquidus), °C 650
600
Melting Onset (Solidus), °C 370
550
Specific Heat Capacity, J/kg-K 850
990
Thermal Conductivity, W/m-K 180
130
Thermal Expansion, µm/m-K 23
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 47
19
Electrical Conductivity: Equal Weight (Specific), % IACS 140
98

Otherwise Unclassified Properties

Base Metal Price, % relative 14
12
Density, g/cm3 3.1
1.7
Embodied Carbon, kg CO2/kg material 8.5
23
Embodied Energy, MJ/kg 160
160
Embodied Water, L/kg 1160
970

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.1
28
Resilience: Unit (Modulus of Resilience), kJ/m3 42
440
Stiffness to Weight: Axial, points 12
15
Stiffness to Weight: Bending, points 44
70
Strength to Weight: Axial, points 12
42
Strength to Weight: Bending, points 19
53
Thermal Diffusivity, mm2/s 69
74
Thermal Shock Resistance, points 6.1
16

Alloy Composition

Aluminum (Al), % 88.3 to 93.1
2.4 to 3.6
Copper (Cu), % 0.7 to 1.3
0 to 0.1
Iron (Fe), % 0 to 0.7
0
Magnesium (Mg), % 0 to 0.1
93.4 to 97
Manganese (Mn), % 0 to 0.1
0.15 to 1.0
Nickel (Ni), % 0.7 to 1.3
0 to 0.030
Silicon (Si), % 0 to 0.7
0 to 0.1
Tin (Sn), % 5.5 to 7.0
0
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0
0.5 to 1.5
Residuals, % 0
0 to 0.3