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EN AC-44000 Aluminum vs. ACI-ASTM CB6 Steel

EN AC-44000 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 EN AC-44000 aluminum and the bottom bar is ACI-ASTM CB6 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
200
Elongation at Break, % 7.3
18
Fatigue Strength, MPa 64
410
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
77
Tensile Strength: Ultimate (UTS), MPa 180
880
Tensile Strength: Yield (Proof), MPa 86
660

Thermal Properties

Latent Heat of Fusion, J/g 560
280
Maximum Temperature: Mechanical, °C 170
870
Melting Completion (Liquidus), °C 590
1440
Melting Onset (Solidus), °C 590
1390
Specific Heat Capacity, J/kg-K 910
480
Thermal Conductivity, W/m-K 140
17
Thermal Expansion, µm/m-K 21
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 130
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.5
7.8
Embodied Carbon, kg CO2/kg material 7.8
2.5
Embodied Energy, MJ/kg 150
36
Embodied Water, L/kg 1070
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
150
Resilience: Unit (Modulus of Resilience), kJ/m3 51
1110
Stiffness to Weight: Axial, points 16
14
Stiffness to Weight: Bending, points 55
25
Strength to Weight: Axial, points 20
32
Strength to Weight: Bending, points 28
26
Thermal Diffusivity, mm2/s 61
4.6
Thermal Shock Resistance, points 8.4
31

Alloy Composition


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Aluminum (Al), % 87.1 to 90
0
Carbon (C), % 0
0 to 0.060
Chromium (Cr), % 0
15.5 to 17.5
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0 to 0.19
74.4 to 81
Magnesium (Mg), % 0 to 0.45
0
Manganese (Mn), % 0 to 0.1
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), % 10 to 11.8
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.070
0
Residuals, % 0 to 0.1
0