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8011A Aluminum vs. ACI-ASTM CB7Cu-1 Steel

8011A aluminum belongs to the aluminum alloys classification, while ACI-ASTM CB7Cu-1 steel belongs to the iron alloys. There are 29 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 8011A aluminum and the bottom bar is ACI-ASTM CB7Cu-1 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 25 to 50
300 to 420
Elastic (Young's, Tensile) Modulus, GPa 69
190
Elongation at Break, % 1.7 to 28
5.7 to 11
Fatigue Strength, MPa 33 to 76
420 to 590
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
76
Tensile Strength: Ultimate (UTS), MPa 100 to 180
960 to 1350
Tensile Strength: Yield (Proof), MPa 34 to 170
760 to 1180

Thermal Properties

Latent Heat of Fusion, J/g 400
280
Melting Completion (Liquidus), °C 650
1430
Melting Onset (Solidus), °C 630
1500
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 210
17
Thermal Expansion, µm/m-K 23
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 56
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 180
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
13
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 8.2
2.6
Embodied Energy, MJ/kg 150
38
Embodied Water, L/kg 1180
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.0 to 22
71 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 8.2 to 200
1500 to 3590
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 11 to 18
34 to 48
Strength to Weight: Bending, points 18 to 26
28 to 35
Thermal Diffusivity, mm2/s 86
4.6
Thermal Shock Resistance, points 4.6 to 8.1
32 to 45

Alloy Composition

Aluminum (Al), % 97.5 to 99.1
0
Carbon (C), % 0
0 to 0.070
Chromium (Cr), % 0 to 0.1
15.5 to 17.7
Copper (Cu), % 0 to 0.1
2.5 to 3.2
Iron (Fe), % 0.5 to 1.0
72.3 to 78.4
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.1
0 to 0.7
Nickel (Ni), % 0
3.6 to 4.6
Niobium (Nb), % 0
0 to 0.35
Nitrogen (N), % 0
0 to 0.050
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0.4 to 0.8
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0