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515.0 Aluminum vs. SAE-AISI T5 Steel

515.0 aluminum belongs to the aluminum alloys classification, while SAE-AISI T5 steel belongs to the iron alloys. There are 19 material properties with values for both materials. Properties with values for just one material (7, 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 515.0 aluminum and the bottom bar is SAE-AISI T5 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
210
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
80
Tensile Strength: Ultimate (UTS), MPa 280
860 to 2140

Thermal Properties

Latent Heat of Fusion, J/g 470
250
Melting Completion (Liquidus), °C 620
1810
Melting Onset (Solidus), °C 620
1750
Specific Heat Capacity, J/kg-K 900
410
Thermal Expansion, µm/m-K 23
11

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
60
Density, g/cm3 2.6
9.4
Embodied Carbon, kg CO2/kg material 8.4
11
Embodied Energy, MJ/kg 150
170
Embodied Water, L/kg 1120
140

Common Calculations

Stiffness to Weight: Axial, points 15
12
Stiffness to Weight: Bending, points 52
21
Strength to Weight: Axial, points 30
25 to 63
Strength to Weight: Bending, points 36
21 to 39
Thermal Shock Resistance, points 13
26 to 66

Alloy Composition

Aluminum (Al), % 93.6 to 96.6
0
Carbon (C), % 0
0.75 to 0.85
Chromium (Cr), % 0
3.8 to 5.0
Cobalt (Co), % 0
7.0 to 9.5
Copper (Cu), % 0 to 0.2
0 to 0.25
Iron (Fe), % 0 to 1.3
60.6 to 68.3
Magnesium (Mg), % 2.5 to 4.0
0
Manganese (Mn), % 0.4 to 0.6
0.2 to 0.4
Molybdenum (Mo), % 0
0.5 to 1.3
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0.5 to 10
0.2 to 0.4
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 0
17.5 to 19
Vanadium (V), % 0
1.8 to 2.4
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0