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AM60A Magnesium vs. 7129 Aluminum

AM60A magnesium belongs to the magnesium alloys classification, while 7129 Aluminum belongs to the aluminum 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 AM60A magnesium and the bottom bar is 7129 Aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
69
Elongation at Break, % 8.8
9.0 to 9.1
Fatigue Strength, MPa 70
150 to 190
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
26
Shear Strength, MPa 130
250 to 260
Tensile Strength: Ultimate (UTS), MPa 230
430
Tensile Strength: Yield (Proof), MPa 130
380 to 390

Thermal Properties

Latent Heat of Fusion, J/g 350
380
Maximum Temperature: Mechanical, °C 120
180
Melting Completion (Liquidus), °C 620
630
Melting Onset (Solidus), °C 550
510
Specific Heat Capacity, J/kg-K 1000
880
Thermal Conductivity, W/m-K 62
150
Thermal Expansion, µm/m-K 26
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
40
Electrical Conductivity: Equal Weight (Specific), % IACS 69
120

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.5
Density, g/cm3 1.7
2.9
Embodied Carbon, kg CO2/kg material 23
8.3
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 990
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17
37 to 38
Resilience: Unit (Modulus of Resilience), kJ/m3 190
1050 to 1090
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 71
47
Strength to Weight: Axial, points 37
41
Strength to Weight: Bending, points 49
43 to 44
Thermal Diffusivity, mm2/s 37
58
Thermal Shock Resistance, points 14
19

Alloy Composition


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Aluminum (Al), % 5.5 to 6.5
91 to 94
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 0 to 0.35
0.5 to 0.9
Gallium (Ga), % 0
0 to 0.030
Iron (Fe), % 0
0 to 0.3
Magnesium (Mg), % 91.8 to 94.4
1.3 to 2.0
Manganese (Mn), % 0.13 to 0.6
0 to 0.1
Nickel (Ni), % 0 to 0.030
0
Silicon (Si), % 0 to 0.5
0 to 0.15
Titanium (Ti), % 0
0 to 0.050
Vanadium (V), % 0
0 to 0.050
Zinc (Zn), % 0 to 0.22
4.2 to 5.2
Residuals, % 0
0 to 0.15