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SAE-AISI D5 Steel vs. 1080 Aluminum

SAE-AISI D5 steel belongs to the iron alloys classification, while 1080 aluminum belongs to the aluminum alloys. There are 25 material properties with values for both materials. Properties with values for just one material (6, 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 SAE-AISI D5 steel and the bottom bar is 1080 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
68
Elongation at Break, % 5.4 to 14
4.6 to 40
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 75
26
Shear Strength, MPa 470 to 1180
49 to 78
Tensile Strength: Ultimate (UTS), MPa 770 to 2030
72 to 130

Thermal Properties

Latent Heat of Fusion, J/g 270
400
Melting Completion (Liquidus), °C 1430
640
Melting Onset (Solidus), °C 1390
640
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 27
230
Thermal Expansion, µm/m-K 11
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.2
61
Electrical Conductivity: Equal Weight (Specific), % IACS 4.9
200

Otherwise Unclassified Properties

Base Metal Price, % relative 13
9.5
Density, g/cm3 7.7
2.7
Embodied Carbon, kg CO2/kg material 3.5
8.3
Embodied Energy, MJ/kg 51
160
Embodied Water, L/kg 120
1200

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 28 to 73
7.4 to 14
Strength to Weight: Bending, points 24 to 46
14 to 22
Thermal Diffusivity, mm2/s 7.4
94
Thermal Shock Resistance, points 26 to 67
3.2 to 6.0

Alloy Composition

Aluminum (Al), % 0
99.8 to 100
Carbon (C), % 1.4 to 1.6
0
Chromium (Cr), % 11 to 13
0
Cobalt (Co), % 2.5 to 3.5
0
Copper (Cu), % 0 to 0.25
0 to 0.030
Gallium (Ga), % 0
0 to 0.030
Iron (Fe), % 77.9 to 84.4
0 to 0.15
Magnesium (Mg), % 0
0 to 0.020
Manganese (Mn), % 0 to 0.6
0 to 0.020
Molybdenum (Mo), % 0.7 to 1.2
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.6
0 to 0.15
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.030
Vanadium (V), % 0 to 1.0
0 to 0.050
Zinc (Zn), % 0
0 to 0.030
Residuals, % 0
0 to 0.020

Comparable Variants