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356.0-T6 Aluminum vs. AZ91E-T6 Magnesium

356.0-T6 aluminum belongs to the aluminum alloys classification, while AZ91E-T6 magnesium belongs to the magnesium alloys. There are 32 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 356.0-T6 aluminum and the bottom bar is AZ91E-T6 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 75
75
Elastic (Young's, Tensile) Modulus, GPa 70
46
Elongation at Break, % 3.8
3.9
Fatigue Strength, MPa 75
84
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
18
Shear Strength, MPa 190
150
Tensile Strength: Ultimate (UTS), MPa 240
260
Tensile Strength: Yield (Proof), MPa 170
130

Thermal Properties

Latent Heat of Fusion, J/g 500
350
Maximum Temperature: Mechanical, °C 170
130
Melting Completion (Liquidus), °C 620
600
Melting Onset (Solidus), °C 570
500
Solidification (Pattern Maker's) Shrinkage, % 1.3
1.3
Specific Heat Capacity, J/kg-K 900
990
Thermal Conductivity, W/m-K 150
84
Thermal Expansion, µm/m-K 21
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
11
Electrical Conductivity: Equal Weight (Specific), % IACS 140
58

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.6
1.7
Embodied Carbon, kg CO2/kg material 8.0
22
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1110
990

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.2
8.6
Resilience: Unit (Modulus of Resilience), kJ/m3 190
190
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 53
69
Strength to Weight: Axial, points 26
42
Strength to Weight: Bending, points 33
53
Thermal Diffusivity, mm2/s 64
49
Thermal Shock Resistance, points 11
15

Alloy Composition

Aluminum (Al), % 90.1 to 93.3
8.1 to 9.3
Copper (Cu), % 0 to 0.25
0 to 0.015
Iron (Fe), % 0 to 0.6
0 to 0.0050
Magnesium (Mg), % 0.2 to 0.45
88.8 to 91.3
Manganese (Mn), % 0 to 0.35
0.17 to 0.35
Nickel (Ni), % 0
0 to 0.0010
Silicon (Si), % 6.5 to 7.5
0 to 0.2
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.35
0.4 to 1.0
Residuals, % 0
0 to 0.3