MakeItFrom.com
Menu (ESC)

7049A-T6 Aluminum vs. AZ91E-T6 Magnesium

7049A-T6 aluminum belongs to the aluminum alloys classification, while AZ91E-T6 magnesium belongs to the magnesium alloys. There are 30 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 7049A-T6 aluminum and the bottom bar is AZ91E-T6 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
46
Elongation at Break, % 5.7
3.9
Fatigue Strength, MPa 180
84
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 27
18
Shear Strength, MPa 350
150
Tensile Strength: Ultimate (UTS), MPa 590
260
Tensile Strength: Yield (Proof), MPa 500
130

Thermal Properties

Latent Heat of Fusion, J/g 370
350
Maximum Temperature: Mechanical, °C 200
130
Melting Completion (Liquidus), °C 640
600
Melting Onset (Solidus), °C 430
500
Specific Heat Capacity, J/kg-K 850
990
Thermal Conductivity, W/m-K 130
84
Thermal Expansion, µm/m-K 24
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
11
Electrical Conductivity: Equal Weight (Specific), % IACS 120
58

Otherwise Unclassified Properties

Base Metal Price, % relative 10
12
Density, g/cm3 3.1
1.7
Embodied Carbon, kg CO2/kg material 8.2
22
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1100
990

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 32
8.6
Resilience: Unit (Modulus of Resilience), kJ/m3 1800
190
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 44
69
Strength to Weight: Axial, points 53
42
Strength to Weight: Bending, points 51
53
Thermal Diffusivity, mm2/s 50
49
Thermal Shock Resistance, points 25
15

Alloy Composition

Aluminum (Al), % 84.6 to 89.5
8.1 to 9.3
Chromium (Cr), % 0.050 to 0.25
0
Copper (Cu), % 1.2 to 1.9
0 to 0.015
Iron (Fe), % 0 to 0.5
0 to 0.0050
Magnesium (Mg), % 2.1 to 3.1
88.8 to 91.3
Manganese (Mn), % 0 to 0.5
0.17 to 0.35
Nickel (Ni), % 0
0 to 0.0010
Silicon (Si), % 0 to 0.4
0 to 0.2
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 7.2 to 8.4
0.4 to 1.0
Zirconium (Zr), % 0 to 0.25
0
Residuals, % 0
0 to 0.3