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EN AC-42200 Aluminum vs. ACI-ASTM CD3MWCuN Steel

EN AC-42200 aluminum belongs to the aluminum alloys classification, while ACI-ASTM CD3MWCuN 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 EN AC-42200 aluminum and the bottom bar is ACI-ASTM CD3MWCuN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
200
Elongation at Break, % 3.0 to 6.7
29
Fatigue Strength, MPa 86 to 90
370
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 26
80
Tensile Strength: Ultimate (UTS), MPa 320
790
Tensile Strength: Yield (Proof), MPa 240 to 260
500

Thermal Properties

Latent Heat of Fusion, J/g 500
300
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 610
1460
Melting Onset (Solidus), °C 600
1410
Specific Heat Capacity, J/kg-K 910
470
Thermal Conductivity, W/m-K 150
16
Thermal Expansion, µm/m-K 22
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 140
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
22
Density, g/cm3 2.6
7.9
Embodied Carbon, kg CO2/kg material 8.0
4.2
Embodied Energy, MJ/kg 150
58
Embodied Water, L/kg 1110
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.0 to 20
200
Resilience: Unit (Modulus of Resilience), kJ/m3 410 to 490
620
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 53
25
Strength to Weight: Axial, points 34 to 35
28
Strength to Weight: Bending, points 40 to 41
24
Thermal Diffusivity, mm2/s 66
4.2
Thermal Shock Resistance, points 15
22

Alloy Composition

Aluminum (Al), % 91 to 93.1
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
24 to 26
Copper (Cu), % 0 to 0.050
0.5 to 1.0
Iron (Fe), % 0 to 0.19
56.6 to 65.3
Magnesium (Mg), % 0.45 to 0.7
0
Manganese (Mn), % 0 to 0.1
0 to 1.5
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 0
6.5 to 8.5
Nitrogen (N), % 0
0.2 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 6.5 to 7.5
0 to 1.0
Sulfur (S), % 0
0 to 0.025
Titanium (Ti), % 0 to 0.25
0
Tungsten (W), % 0
0.5 to 1.0
Zinc (Zn), % 0 to 0.070
0
Residuals, % 0 to 0.1
0