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EN AC-46600 Aluminum vs. S32101 Stainless Steel

EN AC-46600 aluminum belongs to the aluminum alloys classification, while S32101 stainless steel belongs to the iron 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 EN AC-46600 aluminum and the bottom bar is S32101 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 77
260
Elastic (Young's, Tensile) Modulus, GPa 72
200
Elongation at Break, % 1.1
34
Fatigue Strength, MPa 75
400
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
78
Tensile Strength: Ultimate (UTS), MPa 180
740
Tensile Strength: Yield (Proof), MPa 110
500

Thermal Properties

Latent Heat of Fusion, J/g 490
290
Maximum Temperature: Mechanical, °C 170
1000
Melting Completion (Liquidus), °C 620
1420
Melting Onset (Solidus), °C 560
1370
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
12
Density, g/cm3 2.8
7.7
Embodied Carbon, kg CO2/kg material 7.8
2.6
Embodied Energy, MJ/kg 150
38
Embodied Water, L/kg 1080
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 1.7
230
Resilience: Unit (Modulus of Resilience), kJ/m3 81
640
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 18
27
Strength to Weight: Bending, points 25
24
Thermal Diffusivity, mm2/s 51
4.0
Thermal Shock Resistance, points 8.1
20

Alloy Composition

Aluminum (Al), % 85.6 to 92.4
0
Carbon (C), % 0
0 to 0.040
Chromium (Cr), % 0
21 to 22
Copper (Cu), % 1.5 to 2.5
0.1 to 0.8
Iron (Fe), % 0 to 0.8
67.3 to 73.3
Lead (Pb), % 0 to 0.25
0
Magnesium (Mg), % 0 to 0.35
0
Manganese (Mn), % 0.15 to 0.65
4.0 to 6.0
Molybdenum (Mo), % 0
0.1 to 0.8
Nickel (Ni), % 0 to 0.35
1.4 to 1.7
Nitrogen (N), % 0
0.2 to 0.25
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 6.0 to 8.0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
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