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201.0-T6 Aluminum vs. AZ91E-T6 Magnesium

201.0-T6 aluminum belongs to the aluminum alloys classification, while AZ91E-T6 magnesium belongs to the magnesium alloys. There are 31 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is 201.0-T6 aluminum and the bottom bar is AZ91E-T6 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
75
Elastic (Young's, Tensile) Modulus, GPa 71
46
Elongation at Break, % 7.2
3.9
Fatigue Strength, MPa 150
84
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
18
Shear Strength, MPa 290
150
Tensile Strength: Ultimate (UTS), MPa 460
260
Tensile Strength: Yield (Proof), MPa 390
130

Thermal Properties

Latent Heat of Fusion, J/g 390
350
Maximum Temperature: Mechanical, °C 170
130
Melting Completion (Liquidus), °C 650
600
Melting Onset (Solidus), °C 570
500
Solidification (Pattern Maker's) Shrinkage, % 1.3
1.3
Specific Heat Capacity, J/kg-K 870
990
Thermal Conductivity, W/m-K 120
84
Thermal Expansion, µm/m-K 19
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
11
Electrical Conductivity: Equal Weight (Specific), % IACS 87
58

Otherwise Unclassified Properties

Base Metal Price, % relative 38
12
Density, g/cm3 3.1
1.7
Embodied Carbon, kg CO2/kg material 8.7
22
Embodied Energy, MJ/kg 160
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 32
8.6
Resilience: Unit (Modulus of Resilience), kJ/m3 1100
190
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 45
69
Strength to Weight: Axial, points 42
42
Strength to Weight: Bending, points 43
53
Thermal Diffusivity, mm2/s 45
49
Thermal Shock Resistance, points 24
15

Alloy Composition

Aluminum (Al), % 92.1 to 95.1
8.1 to 9.3
Copper (Cu), % 4.0 to 5.2
0 to 0.015
Iron (Fe), % 0 to 0.15
0 to 0.0050
Magnesium (Mg), % 0.15 to 0.55
88.8 to 91.3
Manganese (Mn), % 0.2 to 0.5
0.17 to 0.35
Nickel (Ni), % 0
0 to 0.0010
Silicon (Si), % 0 to 0.1
0 to 0.2
Silver (Ag), % 0.4 to 1.0
0
Titanium (Ti), % 0.15 to 0.35
0
Zinc (Zn), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3