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S66286 Stainless Steel vs. EN AC-47000 Aluminum

S66286 stainless steel belongs to the iron alloys classification, while EN AC-47000 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-47000 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
73
Elongation at Break, % 17 to 40
1.7
Fatigue Strength, MPa 240 to 410
68
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
97

Thermal Properties

Latent Heat of Fusion, J/g 300
570
Maximum Temperature: Mechanical, °C 920
170
Melting Completion (Liquidus), °C 1430
590
Melting Onset (Solidus), °C 1370
570
Specific Heat Capacity, J/kg-K 470
900
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
9.5
Density, g/cm3 7.9
2.6
Embodied Carbon, kg CO2/kg material 6.0
7.7
Embodied Energy, MJ/kg 87
140
Embodied Water, L/kg 170
1040

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 200
2.5
Resilience: Unit (Modulus of Resilience), kJ/m3 190 to 1150
65
Stiffness to Weight: Axial, points 14
16
Stiffness to Weight: Bending, points 24
54
Strength to Weight: Axial, points 22 to 36
19
Strength to Weight: Bending, points 20 to 28
27
Thermal Diffusivity, mm2/s 4.0
55
Thermal Shock Resistance, points 13 to 22
8.3

Alloy Composition

Aluminum (Al), % 0 to 0.35
82.1 to 89.5
Boron (B), % 0.0010 to 0.010
0
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 13.5 to 16
0 to 0.1
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 49.1 to 59.5
0 to 0.8
Lead (Pb), % 0
0 to 0.2
Magnesium (Mg), % 0
0 to 0.35
Manganese (Mn), % 0 to 2.0
0.050 to 0.55
Molybdenum (Mo), % 1.0 to 1.5
0
Nickel (Ni), % 24 to 27
0 to 0.3
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
Tin (Sn), % 0
0 to 0.1
Titanium (Ti), % 1.9 to 2.4
0 to 0.2
Vanadium (V), % 0.1 to 0.5
0
Zinc (Zn), % 0
0 to 0.55
Residuals, % 0
0 to 0.25