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AISI 316LN Stainless Steel vs. 5457 Aluminum

AISI 316LN stainless steel belongs to the iron alloys classification, while 5457 aluminum belongs to the aluminum alloys. There are 31 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 5457 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
32 to 55
Elastic (Young's, Tensile) Modulus, GPa 200
68
Elongation at Break, % 42
6.0 to 22
Fatigue Strength, MPa 200
55 to 98
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 82
26
Shear Strength, MPa 410
85 to 130
Tensile Strength: Ultimate (UTS), MPa 590
130 to 210
Tensile Strength: Yield (Proof), MPa 230
50 to 190

Thermal Properties

Latent Heat of Fusion, J/g 290
400
Maximum Temperature: Mechanical, °C 940
180
Melting Completion (Liquidus), °C 1450
660
Melting Onset (Solidus), °C 1380
630
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 15
180
Thermal Expansion, µm/m-K 17
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
46
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
150

Otherwise Unclassified Properties

Base Metal Price, % relative 19
9.5
Density, g/cm3 7.9
2.7
Embodied Carbon, kg CO2/kg material 3.8
8.4
Embodied Energy, MJ/kg 53
160
Embodied Water, L/kg 150
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
12 to 23
Resilience: Unit (Modulus of Resilience), kJ/m3 130
18 to 250
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 21
13 to 21
Strength to Weight: Bending, points 20
21 to 28
Thermal Diffusivity, mm2/s 4.1
72
Thermal Shock Resistance, points 13
5.7 to 9.0

Alloy Composition

Aluminum (Al), % 0
97.8 to 99.05
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 16 to 18
0
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 62 to 71.9
0 to 0.1
Magnesium (Mg), % 0
0.8 to 1.2
Manganese (Mn), % 0 to 2.0
0.15 to 0.45
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 10 to 14
0
Nitrogen (N), % 0.1 to 0.16
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
0 to 0.080
Sulfur (S), % 0 to 0.030
0
Vanadium (V), % 0
0 to 0.050
Zinc (Zn), % 0
0 to 0.050
Residuals, % 0
0 to 0.1