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5086 Aluminum vs. AISI 314 Stainless Steel

5086 aluminum belongs to the aluminum alloys classification, while AISI 314 stainless steel belongs to the iron alloys. There are 32 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 5086 aluminum and the bottom bar is AISI 314 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 65 to 100
180
Elastic (Young's, Tensile) Modulus, GPa 68
200
Elongation at Break, % 1.7 to 20
45
Fatigue Strength, MPa 88 to 180
210
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
78
Shear Strength, MPa 160 to 230
410
Tensile Strength: Ultimate (UTS), MPa 270 to 390
590
Tensile Strength: Yield (Proof), MPa 110 to 320
230

Thermal Properties

Latent Heat of Fusion, J/g 400
330
Maximum Temperature: Corrosion, °C 65
440
Maximum Temperature: Mechanical, °C 190
1100
Melting Completion (Liquidus), °C 640
1380
Melting Onset (Solidus), °C 590
1340
Specific Heat Capacity, J/kg-K 900
490
Thermal Conductivity, W/m-K 130
15
Thermal Expansion, µm/m-K 24
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 100
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
25
Density, g/cm3 2.7
7.7
Embodied Carbon, kg CO2/kg material 8.8
4.3
Embodied Energy, MJ/kg 150
62
Embodied Water, L/kg 1180
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.8 to 42
210
Resilience: Unit (Modulus of Resilience), kJ/m3 86 to 770
130
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 28 to 40
21
Strength to Weight: Bending, points 34 to 44
20
Thermal Diffusivity, mm2/s 52
3.9
Thermal Shock Resistance, points 12 to 17
14

Alloy Composition

Aluminum (Al), % 93 to 96.3
0
Carbon (C), % 0
0 to 0.25
Chromium (Cr), % 0.050 to 0.25
23 to 26
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0 to 0.5
46.7 to 56.5
Magnesium (Mg), % 3.5 to 4.5
0
Manganese (Mn), % 0.2 to 0.7
0 to 2.0
Nickel (Ni), % 0
19 to 22
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.4
1.5 to 3.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0