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2036 Aluminum vs. ACI-ASTM CD3MCuN Steel

2036 aluminum belongs to the aluminum alloys classification, while ACI-ASTM CD3MCuN 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 2036 aluminum and the bottom bar is ACI-ASTM CD3MCuN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
200
Elongation at Break, % 24
29
Fatigue Strength, MPa 130
370
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 26
80
Tensile Strength: Ultimate (UTS), MPa 340
790
Tensile Strength: Yield (Proof), MPa 200
500

Thermal Properties

Latent Heat of Fusion, J/g 390
300
Maximum Temperature: Mechanical, °C 190
1100
Melting Completion (Liquidus), °C 650
1440
Melting Onset (Solidus), °C 560
1390
Specific Heat Capacity, J/kg-K 890
480
Thermal Conductivity, W/m-K 160
15
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 41
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 130
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 10
20
Density, g/cm3 2.9
7.8
Embodied Carbon, kg CO2/kg material 8.1
3.9
Embodied Energy, MJ/kg 150
54
Embodied Water, L/kg 1160
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 70
200
Resilience: Unit (Modulus of Resilience), kJ/m3 270
620
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 48
25
Strength to Weight: Axial, points 33
28
Strength to Weight: Bending, points 38
24
Thermal Diffusivity, mm2/s 62
4.1
Thermal Shock Resistance, points 15
22

Alloy Composition

Aluminum (Al), % 94.4 to 97.4
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0 to 0.1
24 to 26.7
Copper (Cu), % 2.2 to 3.0
1.4 to 1.9
Iron (Fe), % 0 to 0.5
58.2 to 65.9
Magnesium (Mg), % 0.3 to 0.6
0
Manganese (Mn), % 0.1 to 0.4
0 to 1.2
Molybdenum (Mo), % 0
2.9 to 3.8
Nickel (Ni), % 0
5.6 to 6.7
Nitrogen (N), % 0
0.22 to 0.33
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 1.1
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0