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ACI-ASTM CF3M Steel vs. EN AC-45400 Aluminum

ACI-ASTM CF3M 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 CF3M steel and the bottom bar is EN AC-45400 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
86
Elastic (Young's, Tensile) Modulus, GPa 200
72
Elongation at Break, % 55
6.7
Fatigue Strength, MPa 270
55
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 78
27
Tensile Strength: Ultimate (UTS), MPa 520
260
Tensile Strength: Yield (Proof), MPa 260
130

Thermal Properties

Latent Heat of Fusion, J/g 300
470
Maximum Temperature: Mechanical, °C 990
170
Melting Completion (Liquidus), °C 1440
630
Melting Onset (Solidus), °C 1430
560
Specific Heat Capacity, J/kg-K 470
880
Thermal Conductivity, W/m-K 16
140
Thermal Expansion, µm/m-K 15
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
30
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
95

Otherwise Unclassified Properties

Base Metal Price, % relative 19
10
Density, g/cm3 7.9
2.8
Embodied Carbon, kg CO2/kg material 3.8
7.8
Embodied Energy, MJ/kg 53
150
Embodied Water, L/kg 160
1100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
14
Resilience: Unit (Modulus of Resilience), kJ/m3 170
110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
49
Strength to Weight: Axial, points 18
25
Strength to Weight: Bending, points 18
32
Thermal Diffusivity, mm2/s 4.3
54
Thermal Shock Resistance, points 12
12

Alloy Composition

Aluminum (Al), % 0
88.4 to 92.9
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 17 to 21
0
Copper (Cu), % 0
2.6 to 3.6
Iron (Fe), % 59.9 to 72
0 to 0.6
Lead (Pb), % 0
0 to 0.1
Magnesium (Mg), % 0
0 to 0.050
Manganese (Mn), % 0 to 1.5
0 to 0.55
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 9.0 to 13
0 to 0.1
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.5
4.5 to 6.0
Sulfur (S), % 0 to 0.040
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