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380.0 Aluminum vs. ACI-ASTM CB7Cu-1 Steel

380.0 aluminum belongs to the aluminum alloys classification, while ACI-ASTM CB7Cu-1 steel belongs to the iron 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 380.0 aluminum and the bottom bar is ACI-ASTM CB7Cu-1 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
300 to 420
Elastic (Young's, Tensile) Modulus, GPa 74
190
Elongation at Break, % 3.0
5.7 to 11
Fatigue Strength, MPa 140
420 to 590
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 28
76
Tensile Strength: Ultimate (UTS), MPa 320
960 to 1350
Tensile Strength: Yield (Proof), MPa 160
760 to 1180

Thermal Properties

Latent Heat of Fusion, J/g 510
280
Melting Completion (Liquidus), °C 590
1430
Melting Onset (Solidus), °C 540
1500
Specific Heat Capacity, J/kg-K 870
480
Thermal Conductivity, W/m-K 100
17
Thermal Expansion, µm/m-K 22
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 83
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 10
13
Density, g/cm3 2.9
7.8
Embodied Carbon, kg CO2/kg material 7.5
2.6
Embodied Energy, MJ/kg 140
38
Embodied Water, L/kg 1040
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.0
71 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 170
1500 to 3590
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 48
25
Strength to Weight: Axial, points 31
34 to 48
Strength to Weight: Bending, points 36
28 to 35
Thermal Diffusivity, mm2/s 40
4.6
Thermal Shock Resistance, points 14
32 to 45

Alloy Composition

Aluminum (Al), % 79.6 to 89.5
0
Carbon (C), % 0
0 to 0.070
Chromium (Cr), % 0
15.5 to 17.7
Copper (Cu), % 3.0 to 4.0
2.5 to 3.2
Iron (Fe), % 0 to 2.0
72.3 to 78.4
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0 to 0.7
Nickel (Ni), % 0 to 0.5
3.6 to 4.6
Niobium (Nb), % 0
0 to 0.35
Nitrogen (N), % 0
0 to 0.050
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 7.5 to 9.5
0 to 1.0
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