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N08332 Stainless Steel vs. 2117 Aluminum

N08332 stainless steel belongs to the iron alloys classification, while 2117 aluminum belongs to the aluminum alloys. There are 31 material properties with values for both materials. Properties with values for just one material (3, 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 N08332 stainless steel and the bottom bar is 2117 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
70
Elastic (Young's, Tensile) Modulus, GPa 200
71
Elongation at Break, % 34
26
Fatigue Strength, MPa 170
95
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
27
Shear Strength, MPa 350
200
Tensile Strength: Ultimate (UTS), MPa 520
300
Tensile Strength: Yield (Proof), MPa 210
170

Thermal Properties

Latent Heat of Fusion, J/g 310
400
Maximum Temperature: Mechanical, °C 1050
220
Melting Completion (Liquidus), °C 1390
650
Melting Onset (Solidus), °C 1340
550
Specific Heat Capacity, J/kg-K 480
880
Thermal Conductivity, W/m-K 12
150
Thermal Expansion, µm/m-K 16
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
40
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
120

Otherwise Unclassified Properties

Base Metal Price, % relative 32
10
Density, g/cm3 8.0
3.0
Embodied Carbon, kg CO2/kg material 5.4
8.2
Embodied Energy, MJ/kg 77
150
Embodied Water, L/kg 190
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
64
Resilience: Unit (Modulus of Resilience), kJ/m3 110
190
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
47
Strength to Weight: Axial, points 18
28
Strength to Weight: Bending, points 18
33
Thermal Diffusivity, mm2/s 3.1
59
Thermal Shock Resistance, points 12
12

Alloy Composition

Aluminum (Al), % 0
91 to 97.6
Carbon (C), % 0.050 to 0.1
0
Chromium (Cr), % 17 to 20
0 to 0.1
Copper (Cu), % 0 to 1.0
2.2 to 4.5
Iron (Fe), % 38.3 to 48.2
0 to 0.7
Lead (Pb), % 0 to 0.0050
0
Magnesium (Mg), % 0
0.2 to 1.0
Manganese (Mn), % 0 to 2.0
0.4 to 1.0
Nickel (Ni), % 34 to 37
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.75 to 1.5
0.2 to 0.8
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0 to 0.025
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.25
Zirconium (Zr), % 0
0 to 0.25
Residuals, % 0
0 to 0.15