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ACI-ASTM CN3M Steel vs. A206.0 Aluminum

ACI-ASTM CN3M steel belongs to the iron alloys classification, while A206.0 aluminum belongs to the aluminum alloys. There are 30 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 ACI-ASTM CN3M steel and the bottom bar is A206.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
100 to 110
Elastic (Young's, Tensile) Modulus, GPa 200
70
Elongation at Break, % 34
4.2 to 10
Fatigue Strength, MPa 150
90 to 180
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 80
26
Tensile Strength: Ultimate (UTS), MPa 500
390 to 440
Tensile Strength: Yield (Proof), MPa 190
250 to 380

Thermal Properties

Latent Heat of Fusion, J/g 310
390
Maximum Temperature: Mechanical, °C 1100
170
Melting Completion (Liquidus), °C 1450
670
Melting Onset (Solidus), °C 1400
550
Specific Heat Capacity, J/kg-K 470
880
Thermal Conductivity, W/m-K 13
130
Thermal Expansion, µm/m-K 16
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
30
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
90

Otherwise Unclassified Properties

Base Metal Price, % relative 31
11
Density, g/cm3 8.1
3.0
Embodied Carbon, kg CO2/kg material 5.9
8.0
Embodied Energy, MJ/kg 80
150
Embodied Water, L/kg 200
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
16 to 37
Resilience: Unit (Modulus of Resilience), kJ/m3 89
440 to 1000
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
46
Strength to Weight: Axial, points 17
36 to 41
Strength to Weight: Bending, points 17
39 to 43
Thermal Diffusivity, mm2/s 3.4
48
Thermal Shock Resistance, points 11
17 to 19

Alloy Composition

Aluminum (Al), % 0
93.9 to 95.7
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 20 to 22
0
Copper (Cu), % 0
4.2 to 5.0
Iron (Fe), % 42.4 to 52.5
0 to 0.1
Magnesium (Mg), % 0
0 to 0.15
Manganese (Mn), % 0 to 2.0
0 to 0.2
Molybdenum (Mo), % 4.5 to 5.5
0
Nickel (Ni), % 23 to 27
0 to 0.050
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 1.0
0 to 0.050
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.050
Titanium (Ti), % 0
0.15 to 0.3
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15