MakeItFrom.com
Menu (ESC)

6351-T4 Aluminum vs. AZ91E-T4 Magnesium

6351-T4 aluminum belongs to the aluminum alloys classification, while AZ91E-T4 magnesium belongs to the magnesium alloys. There are 30 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 6351-T4 aluminum and the bottom bar is AZ91E-T4 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
46
Elongation at Break, % 18
6.2
Fatigue Strength, MPa 79
85
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
18
Shear Strength, MPa 150
140
Tensile Strength: Ultimate (UTS), MPa 240
250
Tensile Strength: Yield (Proof), MPa 140
98

Thermal Properties

Latent Heat of Fusion, J/g 410
350
Maximum Temperature: Mechanical, °C 160
130
Melting Completion (Liquidus), °C 650
600
Melting Onset (Solidus), °C 570
500
Specific Heat Capacity, J/kg-K 900
990
Thermal Conductivity, W/m-K 180
84
Thermal Expansion, µm/m-K 23
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 46
10
Electrical Conductivity: Equal Weight (Specific), % IACS 150
52

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.7
1.7
Embodied Carbon, kg CO2/kg material 8.3
22
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1180
990

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 38
12
Resilience: Unit (Modulus of Resilience), kJ/m3 150
110
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 50
69
Strength to Weight: Axial, points 25
40
Strength to Weight: Bending, points 32
51
Thermal Diffusivity, mm2/s 72
49
Thermal Shock Resistance, points 11
14

Alloy Composition

Aluminum (Al), % 96 to 98.5
8.1 to 9.3
Copper (Cu), % 0 to 0.1
0 to 0.015
Iron (Fe), % 0 to 0.5
0 to 0.0050
Magnesium (Mg), % 0.4 to 0.8
88.8 to 91.3
Manganese (Mn), % 0.4 to 0.8
0.17 to 0.35
Nickel (Ni), % 0
0 to 0.0010
Silicon (Si), % 0.7 to 1.3
0 to 0.2
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.2
0.4 to 1.0
Residuals, % 0
0 to 0.3