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ACI-ASTM CD6MN Steel vs. 518.0 Aluminum

ACI-ASTM CD6MN steel belongs to the iron alloys classification, while 518.0 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 CD6MN steel and the bottom bar is 518.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
67
Elongation at Break, % 28
5.0
Fatigue Strength, MPa 370
140
Poisson's Ratio 0.27
0.33
Shear Modulus, GPa 80
25
Tensile Strength: Ultimate (UTS), MPa 730
310
Tensile Strength: Yield (Proof), MPa 510
190

Thermal Properties

Latent Heat of Fusion, J/g 300
390
Maximum Temperature: Mechanical, °C 1100
170
Melting Completion (Liquidus), °C 1440
620
Melting Onset (Solidus), °C 1390
560
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 16
98
Thermal Expansion, µm/m-K 13
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
24
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
81

Otherwise Unclassified Properties

Base Metal Price, % relative 17
9.5
Density, g/cm3 7.7
2.7
Embodied Carbon, kg CO2/kg material 3.4
9.4
Embodied Energy, MJ/kg 48
150
Embodied Water, L/kg 170
1160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
14
Resilience: Unit (Modulus of Resilience), kJ/m3 650
270
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
51
Strength to Weight: Axial, points 26
32
Strength to Weight: Bending, points 23
38
Thermal Diffusivity, mm2/s 4.4
40
Thermal Shock Resistance, points 20
14

Alloy Composition

Aluminum (Al), % 0
88.1 to 92.5
Carbon (C), % 0 to 0.060
0
Chromium (Cr), % 24 to 27
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 62.1 to 70.1
0 to 1.8
Magnesium (Mg), % 0
7.5 to 8.5
Manganese (Mn), % 0 to 1.0
0 to 0.35
Molybdenum (Mo), % 1.8 to 2.5
0
Nickel (Ni), % 4.0 to 6.0
0 to 0.15
Nitrogen (N), % 0.15 to 0.25
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.35
Sulfur (S), % 0 to 0.040
0
Tin (Sn), % 0
0 to 0.15
Zinc (Zn), % 0
0 to 0.15
Residuals, % 0
0 to 0.25