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ACI-ASTM CT15C Steel vs. 5083 Aluminum

ACI-ASTM CT15C steel belongs to the iron alloys classification, while 5083 aluminum belongs to the aluminum alloys. There are 31 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 ACI-ASTM CT15C steel and the bottom bar is 5083 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
75 to 110
Elastic (Young's, Tensile) Modulus, GPa 200
68
Elongation at Break, % 23
1.1 to 17
Fatigue Strength, MPa 130
93 to 190
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
26
Tensile Strength: Ultimate (UTS), MPa 500
290 to 390
Tensile Strength: Yield (Proof), MPa 190
110 to 340

Thermal Properties

Latent Heat of Fusion, J/g 310
400
Maximum Temperature: Corrosion, °C 560
65
Maximum Temperature: Mechanical, °C 1080
190
Melting Completion (Liquidus), °C 1410
640
Melting Onset (Solidus), °C 1360
580
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 12
120
Thermal Expansion, µm/m-K 16
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
29
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
96

Otherwise Unclassified Properties

Base Metal Price, % relative 36
9.5
Density, g/cm3 8.0
2.7
Embodied Carbon, kg CO2/kg material 6.1
8.9
Embodied Energy, MJ/kg 88
150
Embodied Water, L/kg 190
1170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
4.2 to 42
Resilience: Unit (Modulus of Resilience), kJ/m3 93
95 to 860
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 17
29 to 40
Strength to Weight: Bending, points 17
36 to 44
Thermal Diffusivity, mm2/s 3.2
48
Thermal Shock Resistance, points 12
12 to 17

Alloy Composition

Aluminum (Al), % 0
92.4 to 95.6
Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 19 to 21
0.050 to 0.25
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 40.3 to 49.2
0 to 0.4
Magnesium (Mg), % 0
4.0 to 4.9
Manganese (Mn), % 0.15 to 1.5
0.4 to 1.0
Nickel (Ni), % 31 to 34
0
Niobium (Nb), % 0.5 to 1.5
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.15 to 1.5
0 to 0.4
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15