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S38815 Stainless Steel vs. 5383 Aluminum

S38815 stainless steel belongs to the iron alloys classification, while 5383 aluminum belongs to the aluminum alloys. There are 28 material properties with values for both materials. Properties with values for just one material (5, 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 S38815 stainless steel and the bottom bar is 5383 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
85 to 110
Elastic (Young's, Tensile) Modulus, GPa 190
68
Elongation at Break, % 34
6.7 to 15
Fatigue Strength, MPa 230
130 to 200
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 74
26
Shear Strength, MPa 410
190 to 220
Tensile Strength: Ultimate (UTS), MPa 610
310 to 370
Tensile Strength: Yield (Proof), MPa 290
150 to 310

Thermal Properties

Latent Heat of Fusion, J/g 370
390
Maximum Temperature: Corrosion, °C 400
65
Maximum Temperature: Mechanical, °C 860
200
Melting Completion (Liquidus), °C 1360
650
Melting Onset (Solidus), °C 1310
540
Specific Heat Capacity, J/kg-K 500
900
Thermal Expansion, µm/m-K 15
24

Otherwise Unclassified Properties

Base Metal Price, % relative 19
9.5
Density, g/cm3 7.5
2.7
Embodied Carbon, kg CO2/kg material 3.8
9.0
Embodied Energy, MJ/kg 54
160
Embodied Water, L/kg 140
1170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
23 to 40
Resilience: Unit (Modulus of Resilience), kJ/m3 220
170 to 690
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 22
32 to 38
Strength to Weight: Bending, points 21
38 to 42
Thermal Shock Resistance, points 15
14 to 16

Alloy Composition

Aluminum (Al), % 0 to 0.3
92 to 95.3
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 13 to 15
0 to 0.25
Copper (Cu), % 0.75 to 1.5
0 to 0.2
Iron (Fe), % 56.1 to 67
0 to 0.25
Magnesium (Mg), % 0
4.0 to 5.2
Manganese (Mn), % 0 to 2.0
0.7 to 1.0
Molybdenum (Mo), % 0.75 to 1.5
0
Nickel (Ni), % 13 to 17
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 5.5 to 6.5
0 to 0.25
Sulfur (S), % 0 to 0.020
0
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 0
0 to 0.4
Zirconium (Zr), % 0
0 to 0.2
Residuals, % 0
0 to 0.15