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238.0 Aluminum vs. AZ63A Magnesium

238.0 aluminum belongs to the aluminum alloys classification, while AZ63A magnesium belongs to the magnesium alloys. There are 29 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 238.0 aluminum and the bottom bar is AZ63A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 76
46
Elongation at Break, % 1.5
2.2 to 8.0
Fatigue Strength, MPa 110
76 to 83
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 28
18
Tensile Strength: Ultimate (UTS), MPa 210
190 to 270
Tensile Strength: Yield (Proof), MPa 170
81 to 120

Thermal Properties

Latent Heat of Fusion, J/g 430
350
Maximum Temperature: Mechanical, °C 170
120
Melting Completion (Liquidus), °C 600
610
Melting Onset (Solidus), °C 510
450
Specific Heat Capacity, J/kg-K 840
980
Thermal Conductivity, W/m-K 100
52 to 65
Thermal Expansion, µm/m-K 21
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
12 to 15
Electrical Conductivity: Equal Weight (Specific), % IACS 67
59 to 74

Otherwise Unclassified Properties

Base Metal Price, % relative 12
12
Density, g/cm3 3.4
1.8
Embodied Carbon, kg CO2/kg material 7.4
22
Embodied Energy, MJ/kg 140
150
Embodied Water, L/kg 1040
970

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.9
3.7 to 16
Resilience: Unit (Modulus of Resilience), kJ/m3 180
71 to 160
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 42
66
Strength to Weight: Axial, points 17
29 to 41
Strength to Weight: Bending, points 23
40 to 51
Thermal Diffusivity, mm2/s 37
29 to 37
Thermal Shock Resistance, points 9.1
11 to 16

Alloy Composition

Aluminum (Al), % 81.9 to 84.9
5.3 to 6.7
Copper (Cu), % 9.5 to 10.5
0 to 0.25
Iron (Fe), % 1.0 to 1.5
0
Magnesium (Mg), % 0 to 0.25
88.6 to 92.1
Manganese (Mn), % 0
0.15 to 0.35
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 3.6 to 4.4
0 to 0.3
Zinc (Zn), % 1.0 to 1.5
2.5 to 3.5
Residuals, % 0
0 to 0.3