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705.0 Aluminum vs. AM60A Magnesium

705.0 aluminum belongs to the aluminum alloys classification, while AM60A magnesium belongs to the magnesium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is 705.0 aluminum and the bottom bar is AM60A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 62 to 65
62
Elastic (Young's, Tensile) Modulus, GPa 69
45
Elongation at Break, % 8.4 to 10
8.8
Fatigue Strength, MPa 63 to 98
70
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
18
Tensile Strength: Ultimate (UTS), MPa 240 to 260
230
Tensile Strength: Yield (Proof), MPa 130
130

Thermal Properties

Latent Heat of Fusion, J/g 390
350
Maximum Temperature: Mechanical, °C 180
120
Melting Completion (Liquidus), °C 640
620
Melting Onset (Solidus), °C 610
550
Specific Heat Capacity, J/kg-K 890
1000
Thermal Conductivity, W/m-K 140
62
Thermal Expansion, µm/m-K 24
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
13
Electrical Conductivity: Equal Weight (Specific), % IACS 110
69

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.8
1.7
Embodied Carbon, kg CO2/kg material 8.4
23
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1170
990

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 18 to 20
17
Resilience: Unit (Modulus of Resilience), kJ/m3 120 to 130
190
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 49
71
Strength to Weight: Axial, points 24 to 26
37
Strength to Weight: Bending, points 31 to 32
49
Thermal Diffusivity, mm2/s 55
37
Thermal Shock Resistance, points 11
14

Alloy Composition

Aluminum (Al), % 92.3 to 98.6
5.5 to 6.5
Chromium (Cr), % 0 to 0.4
0
Copper (Cu), % 0 to 0.2
0 to 0.35
Iron (Fe), % 0 to 0.8
0
Magnesium (Mg), % 1.4 to 1.8
91.8 to 94.4
Manganese (Mn), % 0 to 0.6
0.13 to 0.6
Nickel (Ni), % 0
0 to 0.030
Silicon (Si), % 0 to 0.2
0 to 0.5
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 3.3
0 to 0.22
Residuals, % 0 to 0.15
0