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SAE-AISI 1018 Steel vs. 6016 Aluminum

SAE-AISI 1018 steel belongs to the iron alloys classification, while 6016 aluminum belongs to the aluminum alloys. There are 31 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 SAE-AISI 1018 steel and the bottom bar is 6016 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130 to 140
55 to 80
Elastic (Young's, Tensile) Modulus, GPa 190
69
Elongation at Break, % 17 to 27
11 to 27
Fatigue Strength, MPa 180 to 270
68 to 89
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
26
Shear Strength, MPa 280 to 300
130 to 170
Tensile Strength: Ultimate (UTS), MPa 430 to 480
200 to 280
Tensile Strength: Yield (Proof), MPa 240 to 400
110 to 210

Thermal Properties

Latent Heat of Fusion, J/g 250
410
Maximum Temperature: Mechanical, °C 400
160
Melting Completion (Liquidus), °C 1460
660
Melting Onset (Solidus), °C 1420
610
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 52
190 to 210
Thermal Expansion, µm/m-K 12
23

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
9.5
Density, g/cm3 7.9
2.7
Embodied Carbon, kg CO2/kg material 1.4
8.2
Embodied Energy, MJ/kg 18
150
Embodied Water, L/kg 46
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 75 to 100
29 to 47
Resilience: Unit (Modulus of Resilience), kJ/m3 150 to 430
82 to 340
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
51
Strength to Weight: Axial, points 15 to 17
21 to 29
Strength to Weight: Bending, points 16 to 17
29 to 35
Thermal Diffusivity, mm2/s 14
77 to 86
Thermal Shock Resistance, points 14 to 15
9.1 to 12

Alloy Composition

Aluminum (Al), % 0
96.4 to 98.8
Carbon (C), % 0.15 to 0.2
0
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 98.8 to 99.25
0 to 0.5
Magnesium (Mg), % 0
0.25 to 0.6
Manganese (Mn), % 0.6 to 0.9
0 to 0.2
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0
1.0 to 1.5
Sulfur (S), % 0 to 0.050
0
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15