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1080A Aluminum vs. ACI-ASTM CC50 Steel

1080A aluminum belongs to the aluminum alloys classification, while ACI-ASTM CC50 steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (8, 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 1080A aluminum and the bottom bar is ACI-ASTM CC50 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 18 to 40
210
Elastic (Young's, Tensile) Modulus, GPa 68
200
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 26
80
Tensile Strength: Ultimate (UTS), MPa 74 to 140
430

Thermal Properties

Latent Heat of Fusion, J/g 400
300
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 640
1420
Melting Onset (Solidus), °C 640
1370
Specific Heat Capacity, J/kg-K 900
490
Thermal Conductivity, W/m-K 230
17
Thermal Expansion, µm/m-K 23
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 62
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 200
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
14
Density, g/cm3 2.7
7.6
Embodied Carbon, kg CO2/kg material 8.3
2.7
Embodied Energy, MJ/kg 160
39
Embodied Water, L/kg 1200
170

Common Calculations

Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 50
26
Strength to Weight: Axial, points 7.6 to 15
16
Strength to Weight: Bending, points 14 to 22
17
Thermal Diffusivity, mm2/s 94
4.5
Thermal Shock Resistance, points 3.3 to 6.4
14

Alloy Composition

Aluminum (Al), % 99.8 to 100
0
Carbon (C), % 0
0 to 0.5
Chromium (Cr), % 0
26 to 30
Copper (Cu), % 0 to 0.030
0
Gallium (Ga), % 0 to 0.030
0
Iron (Fe), % 0 to 0.15
62.9 to 74
Magnesium (Mg), % 0 to 0.020
0
Manganese (Mn), % 0 to 0.020
0 to 1.0
Nickel (Ni), % 0
0 to 4.0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.15
0 to 1.5
Sulfur (S), % 0
0 to 0.040
Titanium (Ti), % 0 to 0.020
0
Zinc (Zn), % 0 to 0.060
0