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308.0 Aluminum vs. ACI-ASTM CD6MN Steel

308.0 aluminum belongs to the aluminum alloys classification, while ACI-ASTM CD6MN steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, 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 308.0 aluminum and the bottom bar is ACI-ASTM CD6MN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
200
Elongation at Break, % 2.0
28
Fatigue Strength, MPa 89
370
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 27
80
Tensile Strength: Ultimate (UTS), MPa 190
730
Tensile Strength: Yield (Proof), MPa 110
510

Thermal Properties

Latent Heat of Fusion, J/g 470
300
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 620
1440
Melting Onset (Solidus), °C 540
1390
Specific Heat Capacity, J/kg-K 870
480
Thermal Conductivity, W/m-K 140
16
Thermal Expansion, µm/m-K 20
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 110
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 10
17
Density, g/cm3 2.9
7.7
Embodied Carbon, kg CO2/kg material 7.7
3.4
Embodied Energy, MJ/kg 140
48
Embodied Water, L/kg 1080
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.3
180
Resilience: Unit (Modulus of Resilience), kJ/m3 83
650
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 47
25
Strength to Weight: Axial, points 18
26
Strength to Weight: Bending, points 25
23
Thermal Diffusivity, mm2/s 55
4.4
Thermal Shock Resistance, points 9.2
20

Alloy Composition

Aluminum (Al), % 85.7 to 91
0
Carbon (C), % 0
0 to 0.060
Chromium (Cr), % 0
24 to 27
Copper (Cu), % 4.0 to 5.0
0
Iron (Fe), % 0 to 1.0
62.1 to 70.1
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0 to 1.0
Molybdenum (Mo), % 0
1.8 to 2.5
Nickel (Ni), % 0
4.0 to 6.0
Nitrogen (N), % 0
0.15 to 0.25
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 5.0 to 6.0
0 to 1.0
Sulfur (S), % 0
0 to 0.040
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 1.0
0
Residuals, % 0 to 0.5
0