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295.0-T4 Aluminum vs. AZ91E-T4 Magnesium

295.0-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 (3, in this case) are not shown.

For each property being compared, the top bar is 295.0-T4 aluminum and the bottom bar is AZ91E-T4 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 60
75
Elastic (Young's, Tensile) Modulus, GPa 71
46
Elongation at Break, % 7.2
6.2
Fatigue Strength, MPa 48
85
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
18
Shear Strength, MPa 180
140
Tensile Strength: Ultimate (UTS), MPa 230
250
Tensile Strength: Yield (Proof), MPa 100
98

Thermal Properties

Latent Heat of Fusion, J/g 400
350
Maximum Temperature: Mechanical, °C 170
130
Melting Completion (Liquidus), °C 640
600
Melting Onset (Solidus), °C 530
500
Solidification (Pattern Maker's) Shrinkage, % 1.3
1.3
Specific Heat Capacity, J/kg-K 880
990
Thermal Conductivity, W/m-K 140
84
Thermal Expansion, µm/m-K 23
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
10
Electrical Conductivity: Equal Weight (Specific), % IACS 100
52

Otherwise Unclassified Properties

Base Metal Price, % relative 10
12
Density, g/cm3 3.0
1.7
Embodied Carbon, kg CO2/kg material 7.9
22
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1140
990

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13
12
Resilience: Unit (Modulus of Resilience), kJ/m3 77
110
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 46
69
Strength to Weight: Axial, points 21
40
Strength to Weight: Bending, points 27
51
Thermal Diffusivity, mm2/s 54
49
Thermal Shock Resistance, points 9.8
14

Alloy Composition

Aluminum (Al), % 91.4 to 95.3
8.1 to 9.3
Copper (Cu), % 4.0 to 5.0
0 to 0.015
Iron (Fe), % 0 to 1.0
0 to 0.0050
Magnesium (Mg), % 0 to 0.030
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), % 0.7 to 1.5
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