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A380.0 Aluminum vs. ACI-ASTM CT15C Steel

A380.0 aluminum belongs to the aluminum alloys classification, while ACI-ASTM CT15C steel belongs to the iron alloys. There are 30 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 A380.0 aluminum and the bottom bar is ACI-ASTM CT15C steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
140
Elastic (Young's, Tensile) Modulus, GPa 73
200
Elongation at Break, % 3.3
23
Fatigue Strength, MPa 140
130
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
76
Tensile Strength: Ultimate (UTS), MPa 290
500
Tensile Strength: Yield (Proof), MPa 160
190

Thermal Properties

Latent Heat of Fusion, J/g 510
310
Maximum Temperature: Mechanical, °C 170
1080
Melting Completion (Liquidus), °C 590
1410
Melting Onset (Solidus), °C 550
1360
Specific Heat Capacity, J/kg-K 870
470
Thermal Conductivity, W/m-K 96
12
Thermal Expansion, µm/m-K 22
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 78
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 11
36
Density, g/cm3 2.9
8.0
Embodied Carbon, kg CO2/kg material 7.5
6.1
Embodied Energy, MJ/kg 140
88
Embodied Water, L/kg 1040
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.3
90
Resilience: Unit (Modulus of Resilience), kJ/m3 180
93
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 48
24
Strength to Weight: Axial, points 28
17
Strength to Weight: Bending, points 34
17
Thermal Diffusivity, mm2/s 38
3.2
Thermal Shock Resistance, points 13
12

Alloy Composition

Aluminum (Al), % 80.3 to 89.5
0
Carbon (C), % 0
0.050 to 0.15
Chromium (Cr), % 0
19 to 21
Copper (Cu), % 3.0 to 4.0
0
Iron (Fe), % 0 to 1.3
40.3 to 49.2
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0.15 to 1.5
Nickel (Ni), % 0 to 0.5
31 to 34
Niobium (Nb), % 0
0.5 to 1.5
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 7.5 to 9.5
0.15 to 1.5
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.35
0
Zinc (Zn), % 0 to 3.0
0
Residuals, % 0 to 0.5
0