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6261 Aluminum vs. EZ33A Magnesium

6261 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 6261 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, % 9.0 to 16
2.6
Fatigue Strength, MPa 60 to 120
70
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
17
Shear Strength, MPa 90 to 180
140
Tensile Strength: Ultimate (UTS), MPa 150 to 300
150
Tensile Strength: Yield (Proof), MPa 100 to 260
100

Thermal Properties

Latent Heat of Fusion, J/g 400
330
Maximum Temperature: Mechanical, °C 160
250
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 610
570
Specific Heat Capacity, J/kg-K 900
970
Thermal Conductivity, W/m-K 180
100
Thermal Expansion, µm/m-K 23
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 48
24
Electrical Conductivity: Equal Weight (Specific), % IACS 160
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 21 to 27
3.6
Resilience: Unit (Modulus of Resilience), kJ/m3 77 to 500
120
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
61
Strength to Weight: Axial, points 15 to 31
22
Strength to Weight: Bending, points 23 to 37
33
Thermal Diffusivity, mm2/s 75
54
Thermal Shock Resistance, points 6.5 to 13
9.2

Alloy Composition

Aluminum (Al), % 96.6 to 98.6
0
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 0.15 to 0.4
0 to 0.1
Iron (Fe), % 0 to 0.4
0
Magnesium (Mg), % 0.7 to 1.0
91.5 to 95
Manganese (Mn), % 0.2 to 0.35
0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0.4 to 0.7
0
Titanium (Ti), % 0 to 0.1
0
Unspecified Rare Earths, % 0
2.5 to 4.0
Zinc (Zn), % 0 to 0.2
2.0 to 3.1
Zirconium (Zr), % 0
0.5 to 1.0
Residuals, % 0
0 to 0.3