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6463 Aluminum vs. AZ31C Magnesium

6463 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 (1, in this case) are not shown.

For each property being compared, the top bar is 6463 aluminum and the bottom bar is AZ31C magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
45
Elongation at Break, % 9.0 to 17
12
Fatigue Strength, MPa 45 to 76
150
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
17
Shear Strength, MPa 86 to 150
130
Tensile Strength: Ultimate (UTS), MPa 140 to 230
260
Tensile Strength: Yield (Proof), MPa 82 to 200
200

Thermal Properties

Latent Heat of Fusion, J/g 400
350
Maximum Temperature: Mechanical, °C 160
110
Melting Completion (Liquidus), °C 660
600
Melting Onset (Solidus), °C 620
550
Specific Heat Capacity, J/kg-K 900
990
Thermal Conductivity, W/m-K 190 to 210
130
Thermal Expansion, µm/m-K 23
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 50 to 55
19
Electrical Conductivity: Equal Weight (Specific), % IACS 170 to 180
98

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.7
1.7
Embodied Carbon, kg CO2/kg material 8.3
23
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1190
970

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17 to 25
28
Resilience: Unit (Modulus of Resilience), kJ/m3 50 to 300
440
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 50
70
Strength to Weight: Axial, points 14 to 24
42
Strength to Weight: Bending, points 22 to 31
53
Thermal Diffusivity, mm2/s 79 to 86
74
Thermal Shock Resistance, points 6.3 to 10
16

Alloy Composition

Aluminum (Al), % 97.9 to 99.4
2.4 to 3.6
Copper (Cu), % 0 to 0.2
0 to 0.1
Iron (Fe), % 0 to 0.15
0
Magnesium (Mg), % 0.45 to 0.9
93.4 to 97
Manganese (Mn), % 0 to 0.050
0.15 to 1.0
Nickel (Ni), % 0
0 to 0.030
Silicon (Si), % 0.2 to 0.6
0 to 0.1
Zinc (Zn), % 0 to 0.050
0.5 to 1.5
Residuals, % 0
0 to 0.3