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ACI-ASTM CA6N Steel vs. 2014 Aluminum

ACI-ASTM CA6N steel belongs to the iron alloys classification, while 2014 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 CA6N steel and the bottom bar is 2014 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
72
Elongation at Break, % 17
1.5 to 16
Fatigue Strength, MPa 640
90 to 160
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 75
27
Tensile Strength: Ultimate (UTS), MPa 1080
190 to 500
Tensile Strength: Yield (Proof), MPa 1060
100 to 440

Thermal Properties

Latent Heat of Fusion, J/g 280
400
Maximum Temperature: Mechanical, °C 740
210
Melting Completion (Liquidus), °C 1440
630
Melting Onset (Solidus), °C 1400
510
Specific Heat Capacity, J/kg-K 480
870
Thermal Conductivity, W/m-K 23
150
Thermal Expansion, µm/m-K 9.9
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.6
40
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
120

Otherwise Unclassified Properties

Base Metal Price, % relative 11
11
Density, g/cm3 7.8
3.0
Embodied Carbon, kg CO2/kg material 2.5
8.1
Embodied Energy, MJ/kg 35
150
Embodied Water, L/kg 110
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
6.6 to 56
Resilience: Unit (Modulus of Resilience), kJ/m3 2900
76 to 1330
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
46
Strength to Weight: Axial, points 38
18 to 46
Strength to Weight: Bending, points 30
25 to 46
Thermal Diffusivity, mm2/s 6.1
58
Thermal Shock Resistance, points 40
8.4 to 22

Alloy Composition

Aluminum (Al), % 0
90.4 to 95
Carbon (C), % 0 to 0.060
0
Chromium (Cr), % 10.5 to 12.5
0 to 0.1
Copper (Cu), % 0
3.9 to 5.0
Iron (Fe), % 77.9 to 83.5
0 to 0.7
Magnesium (Mg), % 0
0.2 to 0.8
Manganese (Mn), % 0 to 0.5
0.4 to 1.2
Nickel (Ni), % 6.0 to 8.0
0
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 1.0
0.5 to 1.2
Sulfur (S), % 0 to 0.020
0
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 0
0 to 0.25
Zirconium (Zr), % 0
0 to 0.2
Residuals, % 0
0 to 0.15