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6151 Aluminum vs. ZE41A Magnesium

6151 aluminum belongs to the aluminum alloys classification, while ZE41A 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 6151 aluminum and the bottom bar is ZE41A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
45
Elongation at Break, % 1.1 to 5.7
3.3
Fatigue Strength, MPa 80 to 100
98
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
18
Shear Strength, MPa 190 to 200
150
Tensile Strength: Ultimate (UTS), MPa 330 to 340
210
Tensile Strength: Yield (Proof), MPa 270 to 280
140

Thermal Properties

Latent Heat of Fusion, J/g 410
330
Maximum Temperature: Mechanical, °C 170
150
Melting Completion (Liquidus), °C 650
640
Melting Onset (Solidus), °C 590
540
Specific Heat Capacity, J/kg-K 900
970
Thermal Conductivity, W/m-K 170
110
Thermal Expansion, µm/m-K 23
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 45
27
Electrical Conductivity: Equal Weight (Specific), % IACS 150
130

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
18
Density, g/cm3 2.7
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 3.5 to 18
6.1
Resilience: Unit (Modulus of Resilience), kJ/m3 520 to 580
220
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
63
Strength to Weight: Axial, points 34
31
Strength to Weight: Bending, points 39
41
Thermal Diffusivity, mm2/s 70
59
Thermal Shock Resistance, points 15
12

Alloy Composition

Aluminum (Al), % 95.6 to 98.8
0
Chromium (Cr), % 0.15 to 0.35
0
Copper (Cu), % 0 to 0.35
0 to 0.1
Iron (Fe), % 0 to 1.0
0
Magnesium (Mg), % 0.45 to 0.8
91.7 to 95.4
Manganese (Mn), % 0 to 0.2
0 to 0.15
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0.6 to 1.2
0
Titanium (Ti), % 0 to 0.15
0
Unspecified Rare Earths, % 0
0.75 to 1.8
Zinc (Zn), % 0 to 0.25
3.5 to 5.0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3