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6061 Aluminum vs. AZ63A Magnesium

6061 aluminum belongs to the aluminum alloys classification, while AZ63A 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 6061 aluminum and the bottom bar is AZ63A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
46
Elongation at Break, % 3.4 to 20
2.2 to 8.0
Fatigue Strength, MPa 58 to 110
76 to 83
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
18
Shear Strength, MPa 84 to 210
110 to 160
Tensile Strength: Ultimate (UTS), MPa 130 to 410
190 to 270
Tensile Strength: Yield (Proof), MPa 76 to 370
81 to 120

Thermal Properties

Latent Heat of Fusion, J/g 400
350
Maximum Temperature: Mechanical, °C 170
120
Melting Completion (Liquidus), °C 650
610
Melting Onset (Solidus), °C 580
450
Specific Heat Capacity, J/kg-K 900
980
Thermal Conductivity, W/m-K 170
52 to 65
Thermal Expansion, µm/m-K 24
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 43
12 to 15
Electrical Conductivity: Equal Weight (Specific), % IACS 140
59 to 74

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.7
1.8
Embodied Carbon, kg CO2/kg material 8.3
22
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
970

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.8 to 81
3.7 to 16
Resilience: Unit (Modulus of Resilience), kJ/m3 42 to 1000
71 to 160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
66
Strength to Weight: Axial, points 13 to 42
29 to 41
Strength to Weight: Bending, points 21 to 45
40 to 51
Thermal Diffusivity, mm2/s 68
29 to 37
Thermal Shock Resistance, points 5.7 to 18
11 to 16

Alloy Composition

Aluminum (Al), % 95.9 to 98.6
5.3 to 6.7
Chromium (Cr), % 0.040 to 0.35
0
Copper (Cu), % 0.15 to 0.4
0 to 0.25
Iron (Fe), % 0 to 0.7
0
Magnesium (Mg), % 0.8 to 1.2
88.6 to 92.1
Manganese (Mn), % 0 to 0.15
0.15 to 0.35
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0.4 to 0.8
0 to 0.3
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.25
2.5 to 3.5
Residuals, % 0
0 to 0.3

Comparable Variants