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ACI-ASTM CB7Cu-2 Steel vs. EN AC-48000 Aluminum

ACI-ASTM CB7Cu-2 steel belongs to the iron alloys classification, while EN AC-48000 aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, 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 ACI-ASTM CB7Cu-2 steel and the bottom bar is EN AC-48000 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 300 to 420
100 to 110
Elastic (Young's, Tensile) Modulus, GPa 190
73
Elongation at Break, % 5.7 to 11
1.0
Fatigue Strength, MPa 420 to 590
85 to 86
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 75
28
Tensile Strength: Ultimate (UTS), MPa 960 to 1350
220 to 310
Tensile Strength: Yield (Proof), MPa 760 to 1180
210 to 270

Thermal Properties

Latent Heat of Fusion, J/g 280
570
Melting Completion (Liquidus), °C 1430
600
Melting Onset (Solidus), °C 1380
560
Specific Heat Capacity, J/kg-K 480
890
Thermal Conductivity, W/m-K 17
130
Thermal Expansion, µm/m-K 11
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
33
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
110

Otherwise Unclassified Properties

Base Metal Price, % relative 13
10
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 2.6
7.9
Embodied Energy, MJ/kg 38
140
Embodied Water, L/kg 130
1030

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 120
2.2 to 3.0
Resilience: Unit (Modulus of Resilience), kJ/m3 1510 to 3600
300 to 510
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
53
Strength to Weight: Axial, points 34 to 48
23 to 33
Strength to Weight: Bending, points 28 to 35
31 to 39
Thermal Diffusivity, mm2/s 4.6
54
Thermal Shock Resistance, points 32 to 45
10 to 15

Alloy Composition

Aluminum (Al), % 0
80.4 to 87.2
Carbon (C), % 0 to 0.070
0
Chromium (Cr), % 14 to 15.5
0
Copper (Cu), % 2.5 to 3.2
0.8 to 1.5
Iron (Fe), % 73.6 to 79
0 to 0.7
Magnesium (Mg), % 0
0.8 to 1.5
Manganese (Mn), % 0 to 0.7
0 to 0.35
Nickel (Ni), % 4.5 to 5.5
0.7 to 1.3
Niobium (Nb), % 0 to 0.35
0
Nitrogen (N), % 0 to 0.050
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 1.0
10.5 to 13.5
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.35
Residuals, % 0
0 to 0.15