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515.0 Aluminum vs. S44537 Stainless Steel

515.0 aluminum belongs to the aluminum alloys classification, while S44537 stainless steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (11, 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 S44537 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
200
Elongation at Break, % 10
21
Fatigue Strength, MPa 130
230
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 26
79
Shear Strength, MPa 190
320
Tensile Strength: Ultimate (UTS), MPa 280
510

Thermal Properties

Latent Heat of Fusion, J/g 470
290
Maximum Temperature: Mechanical, °C 170
1000
Melting Completion (Liquidus), °C 620
1480
Melting Onset (Solidus), °C 620
1430
Specific Heat Capacity, J/kg-K 900
470
Thermal Expansion, µm/m-K 23
11

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
19
Density, g/cm3 2.6
7.9
Embodied Carbon, kg CO2/kg material 8.4
3.4
Embodied Energy, MJ/kg 150
50
Embodied Water, L/kg 1120
140

Common Calculations

Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 52
25
Strength to Weight: Axial, points 30
18
Strength to Weight: Bending, points 36
18
Thermal Shock Resistance, points 13
17

Alloy Composition


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Aluminum (Al), % 93.6 to 96.6
0 to 0.1
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
20 to 24
Copper (Cu), % 0 to 0.2
0 to 0.5
Iron (Fe), % 0 to 1.3
69 to 78.6
Lanthanum (La), % 0
0.040 to 0.2
Magnesium (Mg), % 2.5 to 4.0
0
Manganese (Mn), % 0.4 to 0.6
0 to 0.8
Nickel (Ni), % 0
0 to 0.5
Niobium (Nb), % 0
0.2 to 1.0
Nitrogen (N), % 0
0 to 0.040
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0.5 to 10
0.1 to 0.6
Sulfur (S), % 0
0 to 0.0060
Titanium (Ti), % 0
0.020 to 0.2
Tungsten (W), % 0
1.0 to 3.0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0