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EN AC-46600 Aluminum vs. S82031 Stainless Steel

EN AC-46600 aluminum belongs to the aluminum alloys classification, while S82031 stainless steel belongs to the iron alloys. There are 29 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 EN AC-46600 aluminum and the bottom bar is S82031 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
200
Elongation at Break, % 1.1
39
Fatigue Strength, MPa 75
490
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
78
Tensile Strength: Ultimate (UTS), MPa 180
780
Tensile Strength: Yield (Proof), MPa 110
570

Thermal Properties

Latent Heat of Fusion, J/g 490
290
Maximum Temperature: Mechanical, °C 170
980
Melting Completion (Liquidus), °C 620
1430
Melting Onset (Solidus), °C 560
1390
Specific Heat Capacity, J/kg-K 890
480
Thermal Conductivity, W/m-K 130
15
Thermal Expansion, µm/m-K 22
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 29
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 94
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 10
13
Density, g/cm3 2.8
7.7
Embodied Carbon, kg CO2/kg material 7.8
2.8
Embodied Energy, MJ/kg 150
39
Embodied Water, L/kg 1080
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 1.7
280
Resilience: Unit (Modulus of Resilience), kJ/m3 81
820
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 18
28
Strength to Weight: Bending, points 25
24
Thermal Diffusivity, mm2/s 51
3.9
Thermal Shock Resistance, points 8.1
22

Alloy Composition

Aluminum (Al), % 85.6 to 92.4
0
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0
19 to 22
Copper (Cu), % 1.5 to 2.5
0 to 1.0
Iron (Fe), % 0 to 0.8
68 to 78.3
Lead (Pb), % 0 to 0.25
0
Magnesium (Mg), % 0 to 0.35
0
Manganese (Mn), % 0.15 to 0.65
0 to 2.5
Molybdenum (Mo), % 0
0.6 to 1.4
Nickel (Ni), % 0 to 0.35
2.0 to 4.0
Nitrogen (N), % 0
0.14 to 0.24
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 6.0 to 8.0
0 to 0.8
Sulfur (S), % 0
0 to 0.0050
Tin (Sn), % 0 to 0.15
0
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 1.0
0
Residuals, % 0 to 0.15
0