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7049A-T6 Aluminum vs. AM100A-T6 Magnesium

7049A-T6 aluminum belongs to the aluminum alloys classification, while AM100A-T6 magnesium belongs to the magnesium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is 7049A-T6 aluminum and the bottom bar is AM100A-T6 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
46
Elongation at Break, % 5.7
2.3
Fatigue Strength, MPa 180
62
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 27
18
Shear Strength, MPa 350
150
Tensile Strength: Ultimate (UTS), MPa 590
270
Tensile Strength: Yield (Proof), MPa 500
120

Thermal Properties

Latent Heat of Fusion, J/g 370
350
Maximum Temperature: Mechanical, °C 200
140
Melting Completion (Liquidus), °C 640
590
Melting Onset (Solidus), °C 430
460
Specific Heat Capacity, J/kg-K 850
990
Thermal Conductivity, W/m-K 130
73
Thermal Expansion, µm/m-K 24
25

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
11
Electrical Conductivity: Equal Weight (Specific), % IACS 120
59

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
1000

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 32
4.9
Resilience: Unit (Modulus of Resilience), kJ/m3 1800
160
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 44
70
Strength to Weight: Axial, points 53
43
Strength to Weight: Bending, points 51
54
Thermal Diffusivity, mm2/s 50
43
Thermal Shock Resistance, points 25
16

Alloy Composition

Aluminum (Al), % 84.6 to 89.5
9.3 to 10.7
Chromium (Cr), % 0.050 to 0.25
0
Copper (Cu), % 1.2 to 1.9
0 to 0.1
Iron (Fe), % 0 to 0.5
0
Magnesium (Mg), % 2.1 to 3.1
87.9 to 90.6
Manganese (Mn), % 0 to 0.5
0.1 to 0.35
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0 to 0.4
0 to 0.3
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 7.2 to 8.4
0 to 0.3
Zirconium (Zr), % 0 to 0.25
0
Residuals, % 0
0 to 0.3