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6101A Aluminum vs. ACI-ASTM CD6MN Steel

6101A 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 (3, 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 6101A aluminum and the bottom bar is ACI-ASTM CD6MN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
200
Elongation at Break, % 11
28
Fatigue Strength, MPa 80
370
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 26
80
Tensile Strength: Ultimate (UTS), MPa 220
730
Tensile Strength: Yield (Proof), MPa 190
510

Thermal Properties

Latent Heat of Fusion, J/g 400
300
Maximum Temperature: Mechanical, °C 160
1100
Melting Completion (Liquidus), °C 640
1440
Melting Onset (Solidus), °C 630
1390
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 200
16
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 55
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 180
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
17
Density, g/cm3 2.7
7.7
Embodied Carbon, kg CO2/kg material 8.3
3.4
Embodied Energy, MJ/kg 150
48
Embodied Water, L/kg 1190
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24
180
Resilience: Unit (Modulus of Resilience), kJ/m3 280
650
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 51
25
Strength to Weight: Axial, points 23
26
Strength to Weight: Bending, points 30
23
Thermal Diffusivity, mm2/s 84
4.4
Thermal Shock Resistance, points 10
20

Alloy Composition

Aluminum (Al), % 97.9 to 99.3
0
Carbon (C), % 0
0 to 0.060
Chromium (Cr), % 0
24 to 27
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0 to 0.4
62.1 to 70.1
Magnesium (Mg), % 0.4 to 0.9
0
Manganese (Mn), % 0
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), % 0.3 to 0.7
0 to 1.0
Sulfur (S), % 0
0 to 0.040
Residuals, % 0 to 0.1
0