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S66286 Stainless Steel vs. EN AC-44000 Aluminum

S66286 stainless steel belongs to the iron alloys classification, while EN AC-44000 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-44000 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
71
Elongation at Break, % 17 to 40
7.3
Fatigue Strength, MPa 240 to 410
64
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 75
27
Tensile Strength: Ultimate (UTS), MPa 620 to 1020
180
Tensile Strength: Yield (Proof), MPa 280 to 670
86

Thermal Properties

Latent Heat of Fusion, J/g 300
560
Maximum Temperature: Mechanical, °C 920
170
Melting Completion (Liquidus), °C 1430
590
Melting Onset (Solidus), °C 1370
590
Specific Heat Capacity, J/kg-K 470
910
Thermal Conductivity, W/m-K 15
140
Thermal Expansion, µm/m-K 17
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
36
Electrical Conductivity: Equal Weight (Specific), % IACS 2.2
130

Otherwise Unclassified Properties

Base Metal Price, % relative 26
9.5
Density, g/cm3 7.9
2.5
Embodied Carbon, kg CO2/kg material 6.0
7.8
Embodied Energy, MJ/kg 87
150
Embodied Water, L/kg 170
1070

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 200
11
Resilience: Unit (Modulus of Resilience), kJ/m3 190 to 1150
51
Stiffness to Weight: Axial, points 14
16
Stiffness to Weight: Bending, points 24
55
Strength to Weight: Axial, points 22 to 36
20
Strength to Weight: Bending, points 20 to 28
28
Thermal Diffusivity, mm2/s 4.0
61
Thermal Shock Resistance, points 13 to 22
8.4

Alloy Composition

Aluminum (Al), % 0 to 0.35
87.1 to 90
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 to 0.050
Iron (Fe), % 49.1 to 59.5
0 to 0.19
Magnesium (Mg), % 0
0 to 0.45
Manganese (Mn), % 0 to 2.0
0 to 0.1
Molybdenum (Mo), % 1.0 to 1.5
0
Nickel (Ni), % 24 to 27
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
10 to 11.8
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 1.9 to 2.4
0 to 0.15
Vanadium (V), % 0.1 to 0.5
0
Zinc (Zn), % 0
0 to 0.070
Residuals, % 0
0 to 0.1