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5070 Aluminum vs. EZ33A Magnesium

5070 aluminum belongs to the aluminum alloys classification, while EZ33A magnesium belongs to the magnesium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is 5070 aluminum and the bottom bar is EZ33A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
44
Elongation at Break, % 20
2.6
Fatigue Strength, MPa 150
70
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
17
Shear Strength, MPa 190
140
Tensile Strength: Ultimate (UTS), MPa 300
150
Tensile Strength: Yield (Proof), MPa 140
100

Thermal Properties

Latent Heat of Fusion, J/g 390
330
Maximum Temperature: Mechanical, °C 190
250
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 550
570
Specific Heat Capacity, J/kg-K 900
970
Thermal Conductivity, W/m-K 130
100
Thermal Expansion, µm/m-K 24
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
24
Electrical Conductivity: Equal Weight (Specific), % IACS 100
110

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
25
Density, g/cm3 2.7
1.9
Embodied Carbon, kg CO2/kg material 8.8
25
Embodied Energy, MJ/kg 150
190
Embodied Water, L/kg 1170
930

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 51
3.6
Resilience: Unit (Modulus of Resilience), kJ/m3 150
120
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
61
Strength to Weight: Axial, points 31
22
Strength to Weight: Bending, points 37
33
Thermal Diffusivity, mm2/s 53
54
Thermal Shock Resistance, points 14
9.2

Alloy Composition

Aluminum (Al), % 92.4 to 95.7
0
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.25
0 to 0.1
Iron (Fe), % 0 to 0.4
0
Magnesium (Mg), % 3.5 to 4.5
91.5 to 95
Manganese (Mn), % 0.4 to 0.8
0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0 to 0.25
0
Titanium (Ti), % 0 to 0.15
0
Unspecified Rare Earths, % 0
2.5 to 4.0
Zinc (Zn), % 0.4 to 0.8
2.0 to 3.1
Zirconium (Zr), % 0
0.5 to 1.0
Residuals, % 0
0 to 0.3