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6066 Aluminum vs. SAE-AISI 5160 Steel

6066 aluminum belongs to the aluminum alloys classification, while SAE-AISI 5160 steel belongs to the iron 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. 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 aluminum and the bottom bar is SAE-AISI 5160 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
190
Elongation at Break, % 7.8 to 17
12 to 18
Fatigue Strength, MPa 94 to 130
180 to 650
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Shear Strength, MPa 95 to 240
390 to 700
Tensile Strength: Ultimate (UTS), MPa 160 to 400
660 to 1150
Tensile Strength: Yield (Proof), MPa 93 to 360
280 to 1010

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 to 52
73 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 61 to 920
200 to 2700
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 49
24
Strength to Weight: Axial, points 16 to 39
23 to 41
Strength to Weight: Bending, points 23 to 43
22 to 31
Thermal Diffusivity, mm2/s 61
12
Thermal Shock Resistance, points 6.9 to 17
19 to 34

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

Comparable Variants