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ACI-ASTM CK35MN Steel vs. 6008 Aluminum

ACI-ASTM CK35MN steel belongs to the iron alloys classification, while 6008 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 CK35MN steel and the bottom bar is 6008 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
69
Elongation at Break, % 40
9.1 to 17
Fatigue Strength, MPa 270
55 to 88
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 81
26
Tensile Strength: Ultimate (UTS), MPa 650
200 to 290
Tensile Strength: Yield (Proof), MPa 310
100 to 220

Thermal Properties

Latent Heat of Fusion, J/g 310
410
Maximum Temperature: Mechanical, °C 1100
180
Melting Completion (Liquidus), °C 1460
640
Melting Onset (Solidus), °C 1410
620
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 12
190
Thermal Expansion, µm/m-K 16
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
49
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
160

Otherwise Unclassified Properties

Base Metal Price, % relative 31
9.5
Density, g/cm3 8.0
2.7
Embodied Carbon, kg CO2/kg material 5.9
8.5
Embodied Energy, MJ/kg 81
160
Embodied Water, L/kg 210
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
24 to 28
Resilience: Unit (Modulus of Resilience), kJ/m3 240
76 to 360
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 22
21 to 29
Strength to Weight: Bending, points 21
28 to 35
Thermal Diffusivity, mm2/s 3.3
77
Thermal Shock Resistance, points 14
9.0 to 13

Alloy Composition

Aluminum (Al), % 0
96.5 to 99.1
Carbon (C), % 0 to 0.035
0
Chromium (Cr), % 22 to 24
0 to 0.3
Copper (Cu), % 0 to 0.4
0 to 0.3
Iron (Fe), % 43.4 to 51.8
0 to 0.35
Magnesium (Mg), % 0
0.4 to 0.7
Manganese (Mn), % 0 to 2.0
0 to 0.3
Molybdenum (Mo), % 6.0 to 6.8
0
Nickel (Ni), % 20 to 22
0
Nitrogen (N), % 0.21 to 0.32
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 1.0
0.5 to 0.9
Sulfur (S), % 0 to 0.020
0
Titanium (Ti), % 0
0 to 0.1
Vanadium (V), % 0
0.050 to 0.2
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15