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S31727 Stainless Steel vs. 6016 Aluminum

S31727 stainless steel belongs to the iron alloys classification, while 6016 aluminum belongs to the aluminum alloys. There are 27 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 S31727 stainless steel and the bottom bar is 6016 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
55 to 80
Elastic (Young's, Tensile) Modulus, GPa 200
69
Elongation at Break, % 40
11 to 27
Fatigue Strength, MPa 240
68 to 89
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 78
26
Shear Strength, MPa 430
130 to 170
Tensile Strength: Ultimate (UTS), MPa 630
200 to 280
Tensile Strength: Yield (Proof), MPa 270
110 to 210

Thermal Properties

Latent Heat of Fusion, J/g 290
410
Maximum Temperature: Mechanical, °C 1010
160
Melting Completion (Liquidus), °C 1440
660
Melting Onset (Solidus), °C 1390
610
Specific Heat Capacity, J/kg-K 470
900
Thermal Expansion, µm/m-K 16
23

Otherwise Unclassified Properties

Base Metal Price, % relative 24
9.5
Density, g/cm3 8.0
2.7
Embodied Carbon, kg CO2/kg material 4.7
8.2
Embodied Energy, MJ/kg 64
150
Embodied Water, L/kg 180
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
29 to 47
Resilience: Unit (Modulus of Resilience), kJ/m3 190
82 to 340
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
51
Strength to Weight: Axial, points 22
21 to 29
Strength to Weight: Bending, points 20
29 to 35
Thermal Shock Resistance, points 14
9.1 to 12

Alloy Composition

Aluminum (Al), % 0
96.4 to 98.8
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 17.5 to 19
0 to 0.1
Copper (Cu), % 2.8 to 4.0
0 to 0.2
Iron (Fe), % 53.7 to 61.3
0 to 0.5
Magnesium (Mg), % 0
0.25 to 0.6
Manganese (Mn), % 0 to 1.0
0 to 0.2
Molybdenum (Mo), % 3.8 to 4.5
0
Nickel (Ni), % 14.5 to 16.5
0
Nitrogen (N), % 0.15 to 0.21
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 1.0
1.0 to 1.5
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15