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EN 1.4104 Stainless Steel vs. 5086 Aluminum

EN 1.4104 stainless steel belongs to the iron alloys classification, while 5086 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 EN 1.4104 stainless steel and the bottom bar is 5086 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
68
Elongation at Break, % 11 to 23
1.7 to 20
Fatigue Strength, MPa 230 to 310
88 to 180
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
26
Shear Strength, MPa 400 to 450
160 to 230
Tensile Strength: Ultimate (UTS), MPa 630 to 750
270 to 390
Tensile Strength: Yield (Proof), MPa 350 to 560
110 to 320

Thermal Properties

Latent Heat of Fusion, J/g 280
400
Maximum Temperature: Corrosion, °C 410
65
Maximum Temperature: Mechanical, °C 860
190
Melting Completion (Liquidus), °C 1440
640
Melting Onset (Solidus), °C 1390
590
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 25
130
Thermal Expansion, µm/m-K 10
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
31
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
100

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
9.5
Density, g/cm3 7.7
2.7
Embodied Carbon, kg CO2/kg material 2.2
8.8
Embodied Energy, MJ/kg 30
150
Embodied Water, L/kg 120
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 77 to 120
5.8 to 42
Resilience: Unit (Modulus of Resilience), kJ/m3 310 to 800
86 to 770
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 23 to 27
28 to 40
Strength to Weight: Bending, points 21 to 24
34 to 44
Thermal Diffusivity, mm2/s 6.7
52
Thermal Shock Resistance, points 22 to 27
12 to 17

Alloy Composition

Aluminum (Al), % 0
93 to 96.3
Carbon (C), % 0.1 to 0.17
0
Chromium (Cr), % 15.5 to 17.5
0.050 to 0.25
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 78.8 to 84.1
0 to 0.5
Magnesium (Mg), % 0
3.5 to 4.5
Manganese (Mn), % 0 to 1.5
0.2 to 0.7
Molybdenum (Mo), % 0.2 to 0.6
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0.15 to 0.35
0
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15

Comparable Variants