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295.0 Aluminum vs. AZ31C Magnesium

295.0 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 295.0 aluminum and the bottom bar is AZ31C magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
45
Elongation at Break, % 2.0 to 7.2
12
Fatigue Strength, MPa 44 to 55
150
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
17
Shear Strength, MPa 180 to 230
130
Tensile Strength: Ultimate (UTS), MPa 230 to 280
260
Tensile Strength: Yield (Proof), MPa 100 to 220
200

Thermal Properties

Latent Heat of Fusion, J/g 400
350
Maximum Temperature: Mechanical, °C 170
110
Melting Completion (Liquidus), °C 640
600
Melting Onset (Solidus), °C 530
550
Specific Heat Capacity, J/kg-K 880
990
Thermal Conductivity, W/m-K 140
130
Thermal Expansion, µm/m-K 23
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
19
Electrical Conductivity: Equal Weight (Specific), % IACS 100
98

Otherwise Unclassified Properties

Base Metal Price, % relative 10
12
Density, g/cm3 3.0
1.7
Embodied Carbon, kg CO2/kg material 7.9
23
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1140
970

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.2 to 13
28
Resilience: Unit (Modulus of Resilience), kJ/m3 77 to 340
440
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 46
70
Strength to Weight: Axial, points 21 to 26
42
Strength to Weight: Bending, points 27 to 32
53
Thermal Diffusivity, mm2/s 54
74
Thermal Shock Resistance, points 9.8 to 12
16

Alloy Composition

Aluminum (Al), % 91.4 to 95.3
2.4 to 3.6
Copper (Cu), % 4.0 to 5.0
0 to 0.1
Iron (Fe), % 0 to 1.0
0
Magnesium (Mg), % 0 to 0.030
93.4 to 97
Manganese (Mn), % 0 to 0.35
0.15 to 1.0
Nickel (Ni), % 0
0 to 0.030
Silicon (Si), % 0.7 to 1.5
0 to 0.1
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.35
0.5 to 1.5
Residuals, % 0
0 to 0.3