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ACI-ASTM CN3MN Steel vs. EN AC-45400 Aluminum

ACI-ASTM CN3MN steel belongs to the iron alloys classification, while EN AC-45400 aluminum belongs to the aluminum alloys. There are 30 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 CN3MN steel and the bottom bar is EN AC-45400 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
86
Elastic (Young's, Tensile) Modulus, GPa 210
72
Elongation at Break, % 39
6.7
Fatigue Strength, MPa 250
55
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 80
27
Tensile Strength: Ultimate (UTS), MPa 620
260
Tensile Strength: Yield (Proof), MPa 300
130

Thermal Properties

Latent Heat of Fusion, J/g 310
470
Maximum Temperature: Mechanical, °C 1100
170
Melting Completion (Liquidus), °C 1460
630
Melting Onset (Solidus), °C 1410
560
Specific Heat Capacity, J/kg-K 460
880
Thermal Conductivity, W/m-K 13
140
Thermal Expansion, µm/m-K 16
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.8
30
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
95

Otherwise Unclassified Properties

Base Metal Price, % relative 33
10
Density, g/cm3 8.1
2.8
Embodied Carbon, kg CO2/kg material 6.2
7.8
Embodied Energy, MJ/kg 84
150
Embodied Water, L/kg 200
1100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
14
Resilience: Unit (Modulus of Resilience), kJ/m3 210
110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
49
Strength to Weight: Axial, points 21
25
Strength to Weight: Bending, points 20
32
Thermal Diffusivity, mm2/s 3.4
54
Thermal Shock Resistance, points 14
12

Alloy Composition


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Aluminum (Al), % 0
88.4 to 92.9
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 20 to 22
0
Copper (Cu), % 0 to 0.75
2.6 to 3.6
Iron (Fe), % 41.4 to 50.3
0 to 0.6
Lead (Pb), % 0
0 to 0.1
Magnesium (Mg), % 0
0 to 0.050
Manganese (Mn), % 0 to 2.0
0 to 0.55
Molybdenum (Mo), % 6.0 to 7.0
0
Nickel (Ni), % 23.5 to 25.5
0 to 0.1
Nitrogen (N), % 0.18 to 0.26
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
4.5 to 6.0
Sulfur (S), % 0 to 0.010
0
Tin (Sn), % 0
0 to 0.050
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15