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ACI-ASTM CD6MN Steel vs. 319.0 Aluminum

ACI-ASTM CD6MN steel belongs to the iron alloys classification, while 319.0 aluminum belongs to the aluminum 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 ACI-ASTM CD6MN steel and the bottom bar is 319.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
72
Elongation at Break, % 28
1.8 to 2.0
Fatigue Strength, MPa 370
76 to 80
Poisson's Ratio 0.27
0.33
Shear Modulus, GPa 80
27
Tensile Strength: Ultimate (UTS), MPa 730
190 to 240
Tensile Strength: Yield (Proof), MPa 510
110 to 180

Thermal Properties

Latent Heat of Fusion, J/g 300
480
Maximum Temperature: Mechanical, °C 1100
170
Melting Completion (Liquidus), °C 1440
600
Melting Onset (Solidus), °C 1390
540
Specific Heat Capacity, J/kg-K 480
880
Thermal Conductivity, W/m-K 16
110
Thermal Expansion, µm/m-K 13
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
27
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
84

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
3.3 to 3.9
Resilience: Unit (Modulus of Resilience), kJ/m3 650
88 to 220
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
48
Strength to Weight: Axial, points 26
18 to 24
Strength to Weight: Bending, points 23
25 to 30
Thermal Diffusivity, mm2/s 4.4
44
Thermal Shock Resistance, points 20
8.6 to 11

Alloy Composition

Aluminum (Al), % 0
85.8 to 91.5
Carbon (C), % 0 to 0.060
0
Chromium (Cr), % 24 to 27
0
Copper (Cu), % 0
3.0 to 4.0
Iron (Fe), % 62.1 to 70.1
0 to 1.0
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0 to 1.0
0 to 0.5
Molybdenum (Mo), % 1.8 to 2.5
0
Nickel (Ni), % 4.0 to 6.0
0 to 0.35
Nitrogen (N), % 0.15 to 0.25
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
5.5 to 6.5
Sulfur (S), % 0 to 0.040
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 1.0
Residuals, % 0
0 to 0.5