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6110A Aluminum vs. ACI-ASTM CB6 Steel

6110A aluminum belongs to the aluminum alloys classification, while ACI-ASTM CB6 steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, 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 6110A aluminum and the bottom bar is ACI-ASTM CB6 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
200
Elongation at Break, % 11 to 18
18
Fatigue Strength, MPa 140 to 210
410
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
77
Tensile Strength: Ultimate (UTS), MPa 360 to 470
880
Tensile Strength: Yield (Proof), MPa 250 to 430
660

Thermal Properties

Latent Heat of Fusion, J/g 410
280
Maximum Temperature: Mechanical, °C 190
870
Melting Completion (Liquidus), °C 650
1440
Melting Onset (Solidus), °C 600
1390
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 160
17
Thermal Expansion, µm/m-K 23
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 42
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 140
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.8
7.8
Embodied Carbon, kg CO2/kg material 8.4
2.5
Embodied Energy, MJ/kg 150
36
Embodied Water, L/kg 1170
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 47 to 58
150
Resilience: Unit (Modulus of Resilience), kJ/m3 450 to 1300
1110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 36 to 47
32
Strength to Weight: Bending, points 41 to 48
26
Thermal Diffusivity, mm2/s 65
4.6
Thermal Shock Resistance, points 16 to 21
31

Alloy Composition

Aluminum (Al), % 94.8 to 98
0
Carbon (C), % 0
0 to 0.060
Chromium (Cr), % 0.050 to 0.25
15.5 to 17.5
Copper (Cu), % 0.3 to 0.8
0
Iron (Fe), % 0 to 0.5
74.4 to 81
Magnesium (Mg), % 0.7 to 1.1
0
Manganese (Mn), % 0.3 to 0.9
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
3.5 to 5.5
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0.7 to 1.1
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.2
0
Zirconium (Zr), % 0 to 0.2
0
Residuals, % 0 to 0.15
0