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3105 Aluminum vs. ZE41A Magnesium

3105 aluminum belongs to the aluminum alloys classification, while ZE41A magnesium belongs to the magnesium alloys. There are 31 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 3105 aluminum and the bottom bar is ZE41A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 29 to 67
63
Elastic (Young's, Tensile) Modulus, GPa 69
45
Elongation at Break, % 1.1 to 20
3.3
Fatigue Strength, MPa 39 to 95
98
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
18
Shear Strength, MPa 77 to 140
150
Tensile Strength: Ultimate (UTS), MPa 120 to 240
210
Tensile Strength: Yield (Proof), MPa 46 to 220
140

Thermal Properties

Latent Heat of Fusion, J/g 400
330
Maximum Temperature: Mechanical, °C 180
150
Melting Completion (Liquidus), °C 660
640
Melting Onset (Solidus), °C 640
540
Specific Heat Capacity, J/kg-K 900
970
Thermal Conductivity, W/m-K 170
110
Thermal Expansion, µm/m-K 24
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 44
27
Electrical Conductivity: Equal Weight (Specific), % IACS 140
130

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
18
Density, g/cm3 2.8
1.9
Embodied Carbon, kg CO2/kg material 8.2
24
Embodied Energy, MJ/kg 150
170
Embodied Water, L/kg 1180
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.6 to 19
6.1
Resilience: Unit (Modulus of Resilience), kJ/m3 15 to 340
220
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
63
Strength to Weight: Axial, points 12 to 24
31
Strength to Weight: Bending, points 20 to 31
41
Thermal Diffusivity, mm2/s 68
59
Thermal Shock Resistance, points 5.2 to 11
12

Alloy Composition

Aluminum (Al), % 96 to 99.5
0
Chromium (Cr), % 0 to 0.2
0
Copper (Cu), % 0 to 0.3
0 to 0.1
Iron (Fe), % 0 to 0.7
0
Magnesium (Mg), % 0.2 to 0.8
91.7 to 95.4
Manganese (Mn), % 0.3 to 0.8
0 to 0.15
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0 to 0.6
0
Titanium (Ti), % 0 to 0.1
0
Unspecified Rare Earths, % 0
0.75 to 1.8
Zinc (Zn), % 0 to 0.4
3.5 to 5.0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3