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4147 Aluminum vs. AZ31C Magnesium

4147 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 4147 aluminum and the bottom bar is AZ31C magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
45
Elongation at Break, % 3.3
12
Fatigue Strength, MPa 42
150
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
17
Shear Strength, MPa 63
130
Tensile Strength: Ultimate (UTS), MPa 110
260
Tensile Strength: Yield (Proof), MPa 59
200

Thermal Properties

Latent Heat of Fusion, J/g 570
350
Maximum Temperature: Mechanical, °C 160
110
Melting Completion (Liquidus), °C 580
600
Melting Onset (Solidus), °C 560
550
Specific Heat Capacity, J/kg-K 900
990
Thermal Conductivity, W/m-K 130
130
Thermal Expansion, µm/m-K 21
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
19
Electrical Conductivity: Equal Weight (Specific), % IACS 120
98

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.5
1.7
Embodied Carbon, kg CO2/kg material 7.7
23
Embodied Energy, MJ/kg 140
160
Embodied Water, L/kg 1050
970

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.1
28
Resilience: Unit (Modulus of Resilience), kJ/m3 24
440
Stiffness to Weight: Axial, points 16
15
Stiffness to Weight: Bending, points 55
70
Strength to Weight: Axial, points 12
42
Strength to Weight: Bending, points 20
53
Thermal Diffusivity, mm2/s 58
74
Thermal Shock Resistance, points 5.2
16

Alloy Composition

Aluminum (Al), % 85 to 88.9
2.4 to 3.6
Beryllium (Be), % 0 to 0.00030
0
Copper (Cu), % 0 to 0.25
0 to 0.1
Iron (Fe), % 0 to 0.8
0
Magnesium (Mg), % 0.1 to 0.5
93.4 to 97
Manganese (Mn), % 0 to 0.1
0.15 to 1.0
Nickel (Ni), % 0
0 to 0.030
Silicon (Si), % 11 to 13
0 to 0.1
Zinc (Zn), % 0 to 0.2
0.5 to 1.5
Residuals, % 0
0 to 0.3