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S66286 Stainless Steel vs. EN AC-48000 Aluminum

S66286 stainless steel belongs to the iron alloys classification, while EN AC-48000 aluminum belongs to the aluminum alloys. There are 29 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 S66286 stainless steel and the bottom bar is EN AC-48000 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
73
Elongation at Break, % 17 to 40
1.0
Fatigue Strength, MPa 240 to 410
85 to 86
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 75
28
Tensile Strength: Ultimate (UTS), MPa 620 to 1020
220 to 310
Tensile Strength: Yield (Proof), MPa 280 to 670
210 to 270

Thermal Properties

Latent Heat of Fusion, J/g 300
570
Maximum Temperature: Mechanical, °C 920
190
Melting Completion (Liquidus), °C 1430
600
Melting Onset (Solidus), °C 1370
560
Specific Heat Capacity, J/kg-K 470
890
Thermal Conductivity, W/m-K 15
130
Thermal Expansion, µm/m-K 17
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
33
Electrical Conductivity: Equal Weight (Specific), % IACS 2.2
110

Otherwise Unclassified Properties

Base Metal Price, % relative 26
10
Density, g/cm3 7.9
2.7
Embodied Carbon, kg CO2/kg material 6.0
7.9
Embodied Energy, MJ/kg 87
140
Embodied Water, L/kg 170
1030

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 200
2.2 to 3.0
Resilience: Unit (Modulus of Resilience), kJ/m3 190 to 1150
300 to 510
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
53
Strength to Weight: Axial, points 22 to 36
23 to 33
Strength to Weight: Bending, points 20 to 28
31 to 39
Thermal Diffusivity, mm2/s 4.0
54
Thermal Shock Resistance, points 13 to 22
10 to 15

Alloy Composition

Aluminum (Al), % 0 to 0.35
80.4 to 87.2
Boron (B), % 0.0010 to 0.010
0
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 13.5 to 16
0
Copper (Cu), % 0
0.8 to 1.5
Iron (Fe), % 49.1 to 59.5
0 to 0.7
Magnesium (Mg), % 0
0.8 to 1.5
Manganese (Mn), % 0 to 2.0
0 to 0.35
Molybdenum (Mo), % 1.0 to 1.5
0
Nickel (Ni), % 24 to 27
0.7 to 1.3
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
10.5 to 13.5
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 1.9 to 2.4
0 to 0.25
Vanadium (V), % 0.1 to 0.5
0
Zinc (Zn), % 0
0 to 0.35
Residuals, % 0
0 to 0.15