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6061 Aluminum vs. EZ33A Magnesium

6061 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 (4, in this case) are not shown.

For each property being compared, the top bar is 6061 aluminum and the bottom bar is EZ33A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
44
Elongation at Break, % 3.4 to 20
2.6
Fatigue Strength, MPa 58 to 110
70
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
17
Shear Strength, MPa 84 to 210
140
Tensile Strength: Ultimate (UTS), MPa 130 to 410
150
Tensile Strength: Yield (Proof), MPa 76 to 370
100

Thermal Properties

Latent Heat of Fusion, J/g 400
330
Maximum Temperature: Mechanical, °C 170
250
Melting Completion (Liquidus), °C 650
640
Melting Onset (Solidus), °C 580
570
Specific Heat Capacity, J/kg-K 900
970
Thermal Conductivity, W/m-K 170
100
Thermal Expansion, µm/m-K 24
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 43
24
Electrical Conductivity: Equal Weight (Specific), % IACS 140
110

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
25
Density, g/cm3 2.7
1.9
Embodied Carbon, kg CO2/kg material 8.3
25
Embodied Energy, MJ/kg 150
190
Embodied Water, L/kg 1180
930

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.8 to 81
3.6
Resilience: Unit (Modulus of Resilience), kJ/m3 42 to 1000
120
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
61
Strength to Weight: Axial, points 13 to 42
22
Strength to Weight: Bending, points 21 to 45
33
Thermal Diffusivity, mm2/s 68
54
Thermal Shock Resistance, points 5.7 to 18
9.2

Alloy Composition

Aluminum (Al), % 95.9 to 98.6
0
Chromium (Cr), % 0.040 to 0.35
0
Copper (Cu), % 0.15 to 0.4
0 to 0.1
Iron (Fe), % 0 to 0.7
0
Magnesium (Mg), % 0.8 to 1.2
91.5 to 95
Manganese (Mn), % 0 to 0.15
0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0.4 to 0.8
0
Titanium (Ti), % 0 to 0.15
0
Unspecified Rare Earths, % 0
2.5 to 4.0
Zinc (Zn), % 0 to 0.25
2.0 to 3.1
Zirconium (Zr), % 0
0.5 to 1.0
Residuals, % 0
0 to 0.3