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S31727 Stainless Steel vs. 535.0 Aluminum

S31727 stainless steel belongs to the iron alloys classification, while 535.0 aluminum belongs to the aluminum alloys. There are 27 material properties with values for both materials. Properties with values for just one material (9, 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 535.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
70
Elastic (Young's, Tensile) Modulus, GPa 200
67
Elongation at Break, % 40
10
Fatigue Strength, MPa 240
70
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 78
25
Shear Strength, MPa 430
190
Tensile Strength: Ultimate (UTS), MPa 630
270
Tensile Strength: Yield (Proof), MPa 270
140

Thermal Properties

Latent Heat of Fusion, J/g 290
390
Maximum Temperature: Mechanical, °C 1010
170
Melting Completion (Liquidus), °C 1440
630
Melting Onset (Solidus), °C 1390
570
Specific Heat Capacity, J/kg-K 470
910
Thermal Expansion, µm/m-K 16
24

Otherwise Unclassified Properties

Base Metal Price, % relative 24
9.5
Density, g/cm3 8.0
2.6
Embodied Carbon, kg CO2/kg material 4.7
9.4
Embodied Energy, MJ/kg 64
160
Embodied Water, L/kg 180
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
24
Resilience: Unit (Modulus of Resilience), kJ/m3 190
150
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
51
Strength to Weight: Axial, points 22
28
Strength to Weight: Bending, points 20
35
Thermal Shock Resistance, points 14
12

Alloy Composition

Aluminum (Al), % 0
91.5 to 93.6
Beryllium (Be), % 0
0.0030 to 0.0070
Boron (B), % 0
0 to 0.0050
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 17.5 to 19
0
Copper (Cu), % 2.8 to 4.0
0 to 0.050
Iron (Fe), % 53.7 to 61.3
0 to 0.15
Magnesium (Mg), % 0
6.2 to 7.5
Manganese (Mn), % 0 to 1.0
0.1 to 0.25
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
0 to 0.15
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0.1 to 0.25
Residuals, % 0
0 to 0.15