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6016 Aluminum vs. ACI-ASTM CK20 Steel

6016 aluminum belongs to the aluminum alloys classification, while ACI-ASTM CK20 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 6016 aluminum and the bottom bar is ACI-ASTM CK20 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 55 to 80
150
Elastic (Young's, Tensile) Modulus, GPa 69
200
Elongation at Break, % 11 to 27
37
Fatigue Strength, MPa 68 to 89
220
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
78
Tensile Strength: Ultimate (UTS), MPa 200 to 280
530
Tensile Strength: Yield (Proof), MPa 110 to 210
260

Thermal Properties

Latent Heat of Fusion, J/g 410
310
Maximum Temperature: Mechanical, °C 160
1100
Melting Completion (Liquidus), °C 660
1400
Melting Onset (Solidus), °C 610
1430
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 190 to 210
14
Thermal Expansion, µm/m-K 23
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 48 to 54
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 160 to 180
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
25
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 8.2
4.4
Embodied Energy, MJ/kg 150
62
Embodied Water, L/kg 1180
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29 to 47
160
Resilience: Unit (Modulus of Resilience), kJ/m3 82 to 340
170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 51
25
Strength to Weight: Axial, points 21 to 29
19
Strength to Weight: Bending, points 29 to 35
19
Thermal Diffusivity, mm2/s 77 to 86
3.7
Thermal Shock Resistance, points 9.1 to 12
13

Alloy Composition

Aluminum (Al), % 96.4 to 98.8
0
Carbon (C), % 0
0 to 0.2
Chromium (Cr), % 0 to 0.1
23 to 27
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 0 to 0.5
46.7 to 58
Magnesium (Mg), % 0.25 to 0.6
0
Manganese (Mn), % 0 to 0.2
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
19 to 22
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 1.0 to 1.5
0 to 2.0
Sulfur (S), % 0
0 to 0.040
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.15
0