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8011A Aluminum vs. S35140 Stainless Steel

8011A aluminum belongs to the aluminum alloys classification, while S35140 stainless steel belongs to the iron alloys. There are 30 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 8011A aluminum and the bottom bar is S35140 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 25 to 50
210
Elastic (Young's, Tensile) Modulus, GPa 69
200
Elongation at Break, % 1.7 to 28
34
Fatigue Strength, MPa 33 to 76
250
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
78
Tensile Strength: Ultimate (UTS), MPa 100 to 180
690
Tensile Strength: Yield (Proof), MPa 34 to 170
310

Thermal Properties

Latent Heat of Fusion, J/g 400
300
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 650
1420
Melting Onset (Solidus), °C 630
1370
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 210
14
Thermal Expansion, µm/m-K 23
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 56
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 180
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
31
Density, g/cm3 2.7
8.0
Embodied Carbon, kg CO2/kg material 8.2
5.5
Embodied Energy, MJ/kg 150
78
Embodied Water, L/kg 1180
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.0 to 22
190
Resilience: Unit (Modulus of Resilience), kJ/m3 8.2 to 200
250
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 11 to 18
24
Strength to Weight: Bending, points 18 to 26
22
Thermal Diffusivity, mm2/s 86
3.7
Thermal Shock Resistance, points 4.6 to 8.1
16

Alloy Composition

Aluminum (Al), % 97.5 to 99.1
0
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0 to 0.1
20 to 22
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0.5 to 1.0
44.1 to 52.7
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.1
1.0 to 3.0
Molybdenum (Mo), % 0
1.0 to 2.0
Nickel (Ni), % 0
25 to 27
Niobium (Nb), % 0
0.25 to 0.75
Nitrogen (N), % 0
0.080 to 0.2
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0.4 to 0.8
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0