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201.0-T4 Aluminum vs. AZ91E-T4 Magnesium

201.0-T4 aluminum belongs to the aluminum alloys classification, while AZ91E-T4 magnesium belongs to the magnesium alloys. There are 32 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 201.0-T4 aluminum and the bottom bar is AZ91E-T4 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 95
75
Elastic (Young's, Tensile) Modulus, GPa 71
46
Elongation at Break, % 20
6.2
Fatigue Strength, MPa 120
85
Impact Strength: V-Notched Charpy, J 22
2.8
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
18
Shear Strength, MPa 290
140
Tensile Strength: Ultimate (UTS), MPa 370
250
Tensile Strength: Yield (Proof), MPa 220
98

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 33
10
Electrical Conductivity: Equal Weight (Specific), % IACS 96
52

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 63
12
Resilience: Unit (Modulus of Resilience), kJ/m3 330
110
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 45
69
Strength to Weight: Axial, points 33
40
Strength to Weight: Bending, points 37
51
Thermal Diffusivity, mm2/s 45
49
Thermal Shock Resistance, points 19
14

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