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S32808 Stainless Steel vs. EN AC-44200 Aluminum

S32808 stainless steel belongs to the iron alloys classification, while EN AC-44200 aluminum belongs to the aluminum alloys. There are 30 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 S32808 stainless steel and the bottom bar is EN AC-44200 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
60
Elastic (Young's, Tensile) Modulus, GPa 210
72
Elongation at Break, % 17
6.2
Fatigue Strength, MPa 350
63
Poisson's Ratio 0.27
0.33
Shear Modulus, GPa 81
27
Tensile Strength: Ultimate (UTS), MPa 780
180
Tensile Strength: Yield (Proof), MPa 570
86

Thermal Properties

Latent Heat of Fusion, J/g 300
570
Maximum Temperature: Mechanical, °C 1100
170
Melting Completion (Liquidus), °C 1470
590
Melting Onset (Solidus), °C 1420
580
Specific Heat Capacity, J/kg-K 480
910
Thermal Conductivity, W/m-K 14
130
Thermal Expansion, µm/m-K 13
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
35
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
130

Otherwise Unclassified Properties

Base Metal Price, % relative 24
9.5
Density, g/cm3 7.9
2.5
Embodied Carbon, kg CO2/kg material 4.0
7.7
Embodied Energy, MJ/kg 57
140
Embodied Water, L/kg 180
1050

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
9.1
Resilience: Unit (Modulus of Resilience), kJ/m3 790
51
Stiffness to Weight: Axial, points 14
16
Stiffness to Weight: Bending, points 25
55
Strength to Weight: Axial, points 27
20
Strength to Weight: Bending, points 24
28
Thermal Diffusivity, mm2/s 3.8
59
Thermal Shock Resistance, points 21
8.4

Alloy Composition

Aluminum (Al), % 0
85.2 to 89.5
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 27 to 27.9
0
Copper (Cu), % 0
0 to 0.050
Iron (Fe), % 58.1 to 62.8
0 to 0.55
Manganese (Mn), % 0 to 1.1
0 to 0.35
Molybdenum (Mo), % 0.8 to 1.2
0
Nickel (Ni), % 7.0 to 8.2
0
Nitrogen (N), % 0.3 to 0.4
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.5
10.5 to 13.5
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0
0 to 0.15
Tungsten (W), % 2.1 to 2.5
0
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15