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ACI-ASTM CK3MCuN Steel vs. 6110A Aluminum

ACI-ASTM CK3MCuN steel belongs to the iron alloys classification, while 6110A aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, 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 CK3MCuN steel and the bottom bar is 6110A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
70
Elongation at Break, % 39
11 to 18
Fatigue Strength, MPa 250
140 to 210
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 80
26
Tensile Strength: Ultimate (UTS), MPa 620
360 to 470
Tensile Strength: Yield (Proof), MPa 290
250 to 430

Thermal Properties

Latent Heat of Fusion, J/g 300
410
Maximum Temperature: Mechanical, °C 1090
190
Melting Completion (Liquidus), °C 1460
650
Melting Onset (Solidus), °C 1350
600
Specific Heat Capacity, J/kg-K 460
900
Thermal Conductivity, W/m-K 12
160
Thermal Expansion, µm/m-K 16
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
42
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
140

Otherwise Unclassified Properties

Base Metal Price, % relative 29
9.5
Density, g/cm3 8.0
2.8
Embodied Carbon, kg CO2/kg material 5.6
8.4
Embodied Energy, MJ/kg 76
150
Embodied Water, L/kg 190
1170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
47 to 58
Resilience: Unit (Modulus of Resilience), kJ/m3 210
450 to 1300
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 21
36 to 47
Strength to Weight: Bending, points 20
41 to 48
Thermal Diffusivity, mm2/s 3.2
65
Thermal Shock Resistance, points 14
16 to 21

Alloy Composition

Aluminum (Al), % 0
94.8 to 98
Carbon (C), % 0 to 0.025
0
Chromium (Cr), % 19.5 to 20.5
0.050 to 0.25
Copper (Cu), % 0.5 to 1.0
0.3 to 0.8
Iron (Fe), % 49.5 to 56.3
0 to 0.5
Magnesium (Mg), % 0
0.7 to 1.1
Manganese (Mn), % 0 to 1.2
0.3 to 0.9
Molybdenum (Mo), % 6.0 to 7.0
0
Nickel (Ni), % 17.5 to 19.5
0
Nitrogen (N), % 0.18 to 0.24
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
0.7 to 1.1
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
0 to 0.2
Zirconium (Zr), % 0
0 to 0.2
Residuals, % 0
0 to 0.15