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A390.0-T7 Aluminum vs. AM100A-T7 Magnesium

A390.0-T7 aluminum belongs to the aluminum alloys classification, while AM100A-T7 magnesium belongs to the magnesium alloys. There are 27 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 A390.0-T7 aluminum and the bottom bar is AM100A-T7 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 75
46
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 28
18
Tensile Strength: Ultimate (UTS), MPa 260
260
Tensile Strength: Yield (Proof), MPa 260
130

Thermal Properties

Latent Heat of Fusion, J/g 640
350
Maximum Temperature: Mechanical, °C 170
140
Melting Completion (Liquidus), °C 580
590
Melting Onset (Solidus), °C 480
460
Specific Heat Capacity, J/kg-K 880
990
Thermal Conductivity, W/m-K 130
73
Thermal Expansion, µm/m-K 20
25

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
11
Electrical Conductivity: Equal Weight (Specific), % IACS 67
59

Otherwise Unclassified Properties

Base Metal Price, % relative 11
12
Density, g/cm3 2.7
1.7
Embodied Carbon, kg CO2/kg material 7.3
22
Embodied Energy, MJ/kg 140
160
Embodied Water, L/kg 950
1000

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.2
1.3 to 15
Resilience: Unit (Modulus of Resilience), kJ/m3 440
190
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 52
70
Strength to Weight: Axial, points 26
42
Strength to Weight: Bending, points 33
53
Thermal Diffusivity, mm2/s 56
43
Thermal Shock Resistance, points 12
16

Alloy Composition

Aluminum (Al), % 75.3 to 79.6
9.3 to 10.7
Copper (Cu), % 4.0 to 5.0
0 to 0.1
Iron (Fe), % 0 to 0.5
0
Magnesium (Mg), % 0.45 to 0.65
87.9 to 90.6
Manganese (Mn), % 0 to 0.1
0.1 to 0.35
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 16 to 18
0 to 0.3
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.1
0 to 0.3
Residuals, % 0
0 to 0.3