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6023 Aluminum vs. ACI-ASTM CK35MN Steel

6023 aluminum belongs to the aluminum alloys classification, while ACI-ASTM CK35MN steel belongs to the iron 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 6023 aluminum and the bottom bar is ACI-ASTM CK35MN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
210
Elongation at Break, % 11
40
Fatigue Strength, MPa 120 to 130
270
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
81
Tensile Strength: Ultimate (UTS), MPa 360
650
Tensile Strength: Yield (Proof), MPa 300 to 310
310

Thermal Properties

Latent Heat of Fusion, J/g 400
310
Maximum Temperature: Mechanical, °C 160
1100
Melting Completion (Liquidus), °C 640
1460
Melting Onset (Solidus), °C 580
1410
Specific Heat Capacity, J/kg-K 890
470
Thermal Conductivity, W/m-K 170
12
Thermal Expansion, µm/m-K 23
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 45
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 140
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 11
31
Density, g/cm3 2.8
8.0
Embodied Carbon, kg CO2/kg material 8.3
5.9
Embodied Energy, MJ/kg 150
81
Embodied Water, L/kg 1180
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 38 to 39
210
Resilience: Unit (Modulus of Resilience), kJ/m3 670 to 690
240
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 49
25
Strength to Weight: Axial, points 35 to 36
22
Strength to Weight: Bending, points 40
21
Thermal Diffusivity, mm2/s 67
3.3
Thermal Shock Resistance, points 16
14

Alloy Composition

Aluminum (Al), % 94 to 97.7
0
Bismuth (Bi), % 0.3 to 0.8
0
Carbon (C), % 0
0 to 0.035
Chromium (Cr), % 0
22 to 24
Copper (Cu), % 0.2 to 0.5
0 to 0.4
Iron (Fe), % 0 to 0.5
43.4 to 51.8
Magnesium (Mg), % 0.4 to 0.9
0
Manganese (Mn), % 0.2 to 0.6
0 to 2.0
Molybdenum (Mo), % 0
6.0 to 6.8
Nickel (Ni), % 0
20 to 22
Nitrogen (N), % 0
0.21 to 0.32
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0.6 to 1.4
0 to 1.0
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 0.6 to 1.2
0
Residuals, % 0 to 0.15
0