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6060 Aluminum vs. SAE-AISI 1018 Steel

6060 aluminum belongs to the aluminum alloys classification, while SAE-AISI 1018 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, 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 6060 aluminum and the bottom bar is SAE-AISI 1018 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
190
Elongation at Break, % 9.0 to 16
17 to 27
Fatigue Strength, MPa 37 to 70
180 to 270
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Shear Strength, MPa 86 to 130
280 to 300
Tensile Strength: Ultimate (UTS), MPa 140 to 220
430 to 480
Tensile Strength: Yield (Proof), MPa 71 to 170
240 to 400

Thermal Properties

Latent Heat of Fusion, J/g 400
250
Maximum Temperature: Mechanical, °C 160
400
Melting Completion (Liquidus), °C 660
1460
Melting Onset (Solidus), °C 610
1420
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 210
52
Thermal Expansion, µm/m-K 23
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 54
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 180
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
1.8
Density, g/cm3 2.7
7.9
Embodied Carbon, kg CO2/kg material 8.3
1.4
Embodied Energy, MJ/kg 150
18
Embodied Water, L/kg 1190
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13 to 24
75 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 37 to 210
150 to 430
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 14 to 23
15 to 17
Strength to Weight: Bending, points 22 to 30
16 to 17
Thermal Diffusivity, mm2/s 85
14
Thermal Shock Resistance, points 6.3 to 9.9
14 to 15

Alloy Composition

Aluminum (Al), % 97.9 to 99.3
0
Carbon (C), % 0
0.15 to 0.2
Chromium (Cr), % 0 to 0.050
0
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0.1 to 0.3
98.8 to 99.25
Magnesium (Mg), % 0.35 to 0.6
0
Manganese (Mn), % 0 to 0.1
0.6 to 0.9
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0.3 to 0.6
0
Sulfur (S), % 0
0 to 0.050
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.15
0
Residuals, % 0 to 0.15
0