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ACI-ASTM CA40 Steel vs. 5083 Aluminum

ACI-ASTM CA40 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 CA40 steel and the bottom bar is 5083 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 310
75 to 110
Elastic (Young's, Tensile) Modulus, GPa 190
68
Elongation at Break, % 10
1.1 to 17
Fatigue Strength, MPa 460
93 to 190
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
26
Tensile Strength: Ultimate (UTS), MPa 910
290 to 390
Tensile Strength: Yield (Proof), MPa 860
110 to 340

Thermal Properties

Latent Heat of Fusion, J/g 280
400
Maximum Temperature: Corrosion, °C 390
65
Maximum Temperature: Mechanical, °C 750
190
Melting Completion (Liquidus), °C 1440
640
Melting Onset (Solidus), °C 1500
580
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 25
120
Thermal Expansion, µm/m-K 10
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
29
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
96

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
9.5
Density, g/cm3 7.7
2.7
Embodied Carbon, kg CO2/kg material 2.0
8.9
Embodied Energy, MJ/kg 28
150
Embodied Water, L/kg 100
1170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 89
4.2 to 42
Resilience: Unit (Modulus of Resilience), kJ/m3 1910
95 to 860
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 33
29 to 40
Strength to Weight: Bending, points 27
36 to 44
Thermal Diffusivity, mm2/s 6.7
48
Thermal Shock Resistance, points 33
12 to 17

Alloy Composition

Aluminum (Al), % 0
92.4 to 95.6
Carbon (C), % 0.2 to 0.4
0
Chromium (Cr), % 11.5 to 14
0.050 to 0.25
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 81.5 to 88.3
0 to 0.4
Magnesium (Mg), % 0
4.0 to 4.9
Manganese (Mn), % 0 to 1.0
0.4 to 1.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.5
0 to 0.4
Sulfur (S), % 0 to 0.040
0
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15