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N08926 Stainless Steel vs. 7116 Aluminum

N08926 stainless steel belongs to the iron alloys classification, while 7116 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, 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 N08926 stainless steel and the bottom bar is 7116 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
69
Elongation at Break, % 40
7.8
Fatigue Strength, MPa 290
160
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 80
26
Shear Strength, MPa 500
220
Tensile Strength: Ultimate (UTS), MPa 740
370
Tensile Strength: Yield (Proof), MPa 330
330

Thermal Properties

Latent Heat of Fusion, J/g 300
380
Maximum Temperature: Mechanical, °C 1100
170
Melting Completion (Liquidus), °C 1460
640
Melting Onset (Solidus), °C 1410
520
Specific Heat Capacity, J/kg-K 460
880
Thermal Conductivity, W/m-K 12
150
Thermal Expansion, µm/m-K 16
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
46
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
140

Otherwise Unclassified Properties

Base Metal Price, % relative 33
9.5
Density, g/cm3 8.1
2.9
Embodied Carbon, kg CO2/kg material 6.2
8.2
Embodied Energy, MJ/kg 84
150
Embodied Water, L/kg 200
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
28
Resilience: Unit (Modulus of Resilience), kJ/m3 270
790
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
47
Strength to Weight: Axial, points 25
35
Strength to Weight: Bending, points 22
39
Thermal Diffusivity, mm2/s 3.2
58
Thermal Shock Resistance, points 16
16

Alloy Composition

Aluminum (Al), % 0
91.5 to 94.5
Carbon (C), % 0 to 0.020
0
Chromium (Cr), % 19 to 21
0
Copper (Cu), % 0.5 to 1.5
0.5 to 1.1
Gallium (Ga), % 0
0 to 0.030
Iron (Fe), % 41.7 to 50.4
0 to 0.3
Magnesium (Mg), % 0
0.8 to 1.4
Manganese (Mn), % 0 to 2.0
0 to 0.050
Molybdenum (Mo), % 6.0 to 7.0
0
Nickel (Ni), % 24 to 26
0
Nitrogen (N), % 0.15 to 0.25
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.5
0 to 0.15
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0
0 to 0.050
Vanadium (V), % 0
0 to 0.050
Zinc (Zn), % 0
4.2 to 5.2
Residuals, % 0
0 to 0.15