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ACI-ASTM CK3MCuN Steel vs. 5050 Aluminum

ACI-ASTM CK3MCuN steel belongs to the iron alloys classification, while 5050 aluminum belongs to the aluminum alloys. There are 30 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 5050 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
36 to 68
Elastic (Young's, Tensile) Modulus, GPa 200
68
Elongation at Break, % 39
1.7 to 22
Fatigue Strength, MPa 250
45 to 100
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 80
26
Tensile Strength: Ultimate (UTS), MPa 620
140 to 250
Tensile Strength: Yield (Proof), MPa 290
50 to 210

Thermal Properties

Latent Heat of Fusion, J/g 300
400
Maximum Temperature: Mechanical, °C 1090
180
Melting Completion (Liquidus), °C 1460
650
Melting Onset (Solidus), °C 1350
630
Specific Heat Capacity, J/kg-K 460
900
Thermal Conductivity, W/m-K 12
190
Thermal Expansion, µm/m-K 16
24

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
8.4
Embodied Energy, MJ/kg 76
150
Embodied Water, L/kg 190
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
4.1 to 24
Resilience: Unit (Modulus of Resilience), kJ/m3 210
18 to 330
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 21
15 to 26
Strength to Weight: Bending, points 20
22 to 33
Thermal Diffusivity, mm2/s 3.2
79
Thermal Shock Resistance, points 14
6.3 to 11

Alloy Composition

Aluminum (Al), % 0
96.3 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 0.7
Magnesium (Mg), % 0
1.1 to 1.8
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 to 0.4
Sulfur (S), % 0 to 0.010
0
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15