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AISI 316LN Stainless Steel vs. 206.0 Aluminum

AISI 316LN stainless steel belongs to the iron alloys classification, while 206.0 aluminum belongs to the aluminum alloys. There are 32 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 AISI 316LN stainless steel and the bottom bar is 206.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
95 to 110
Elastic (Young's, Tensile) Modulus, GPa 200
71
Elongation at Break, % 42
8.4 to 12
Fatigue Strength, MPa 200
88 to 210
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 82
27
Shear Strength, MPa 410
260
Tensile Strength: Ultimate (UTS), MPa 590
330 to 440
Tensile Strength: Yield (Proof), MPa 230
190 to 350

Thermal Properties

Latent Heat of Fusion, J/g 290
390
Maximum Temperature: Mechanical, °C 940
170
Melting Completion (Liquidus), °C 1450
650
Melting Onset (Solidus), °C 1380
570
Specific Heat Capacity, J/kg-K 470
880
Thermal Conductivity, W/m-K 15
120
Thermal Expansion, µm/m-K 17
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
33
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
99

Otherwise Unclassified Properties

Base Metal Price, % relative 19
11
Calomel Potential, mV -40
-680
Density, g/cm3 7.9
3.0
Embodied Carbon, kg CO2/kg material 3.8
8.0
Embodied Energy, MJ/kg 53
150
Embodied Water, L/kg 150
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
24 to 49
Resilience: Unit (Modulus of Resilience), kJ/m3 130
270 to 840
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
46
Strength to Weight: Axial, points 21
30 to 40
Strength to Weight: Bending, points 20
35 to 42
Thermal Diffusivity, mm2/s 4.1
46
Thermal Shock Resistance, points 13
17 to 23

Alloy Composition

Aluminum (Al), % 0
93.3 to 95.3
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 16 to 18
0
Copper (Cu), % 0
4.2 to 5.0
Iron (Fe), % 62 to 71.9
0 to 0.15
Magnesium (Mg), % 0
0.15 to 0.35
Manganese (Mn), % 0 to 2.0
0.2 to 0.5
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 10 to 14
0 to 0.050
Nitrogen (N), % 0.1 to 0.16
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
0 to 0.1
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.050
Titanium (Ti), % 0
0.15 to 0.3
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15