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6066-O Aluminum vs. Annealed SAE-AISI 5160

6066-O aluminum belongs to the aluminum alloys classification, while annealed SAE-AISI 5160 belongs to the iron alloys. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is 6066-O aluminum and the bottom bar is annealed SAE-AISI 5160.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 43
200
Elastic (Young's, Tensile) Modulus, GPa 70
190
Elongation at Break, % 17
17
Fatigue Strength, MPa 97
180
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Shear Strength, MPa 95
410
Tensile Strength: Ultimate (UTS), MPa 160
670
Tensile Strength: Yield (Proof), MPa 93
280

Thermal Properties

Latent Heat of Fusion, J/g 410
250
Maximum Temperature: Mechanical, °C 170
420
Melting Completion (Liquidus), °C 650
1450
Melting Onset (Solidus), °C 560
1410
Specific Heat Capacity, J/kg-K 890
470
Thermal Conductivity, W/m-K 150
43
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 130
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.1
Density, g/cm3 2.8
7.8
Embodied Carbon, kg CO2/kg material 8.3
1.4
Embodied Energy, MJ/kg 150
19
Embodied Water, L/kg 1160
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 23
92
Resilience: Unit (Modulus of Resilience), kJ/m3 61
200
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 49
24
Strength to Weight: Axial, points 16
24
Strength to Weight: Bending, points 23
22
Thermal Diffusivity, mm2/s 61
12
Thermal Shock Resistance, points 6.9
20

Alloy Composition

Aluminum (Al), % 93 to 97
0
Carbon (C), % 0
0.56 to 0.61
Chromium (Cr), % 0 to 0.4
0.7 to 0.9
Copper (Cu), % 0.7 to 1.2
0
Iron (Fe), % 0 to 0.5
97.1 to 97.8
Magnesium (Mg), % 0.8 to 1.4
0
Manganese (Mn), % 0.6 to 1.1
0.75 to 1.0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0.9 to 1.8
0.15 to 0.35
Sulfur (S), % 0
0 to 0.040
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0