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ACI-ASTM CK3MCuN Steel vs. 6162 Aluminum

ACI-ASTM CK3MCuN steel belongs to the iron alloys classification, while 6162 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 6162 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
68
Elongation at Break, % 39
6.7 to 9.1
Fatigue Strength, MPa 250
100 to 130
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 80
26
Tensile Strength: Ultimate (UTS), MPa 620
290 to 300
Tensile Strength: Yield (Proof), MPa 290
260 to 270

Thermal Properties

Latent Heat of Fusion, J/g 300
400
Maximum Temperature: Mechanical, °C 1090
160
Melting Completion (Liquidus), °C 1460
640
Melting Onset (Solidus), °C 1350
620
Specific Heat Capacity, J/kg-K 460
900
Thermal Conductivity, W/m-K 12
190
Thermal Expansion, µm/m-K 16
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
50
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
170

Otherwise Unclassified Properties

Base Metal Price, % relative 29
9.5
Density, g/cm3 8.0
2.7
Embodied Carbon, kg CO2/kg material 5.6
8.3
Embodied Energy, MJ/kg 76
150
Embodied Water, L/kg 190
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
19 to 26
Resilience: Unit (Modulus of Resilience), kJ/m3 210
510 to 550
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 21
29 to 30
Strength to Weight: Bending, points 20
36
Thermal Diffusivity, mm2/s 3.2
79
Thermal Shock Resistance, points 14
13

Alloy Composition

Aluminum (Al), % 0
96.7 to 98.9
Carbon (C), % 0 to 0.025
0
Chromium (Cr), % 19.5 to 20.5
0 to 0.1
Copper (Cu), % 0.5 to 1.0
0 to 0.2
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 to 0.1
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
0.4 to 0.8
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15