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5082 Aluminum vs. EN 1.4611 Stainless Steel

5082 aluminum belongs to the aluminum alloys classification, while EN 1.4611 stainless steel belongs to the iron alloys. There are 30 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 5082 aluminum and the bottom bar is EN 1.4611 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 67
200
Elongation at Break, % 1.1
21
Fatigue Strength, MPa 110 to 130
180
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 25
78
Shear Strength, MPa 210 to 230
330
Tensile Strength: Ultimate (UTS), MPa 380 to 400
530
Tensile Strength: Yield (Proof), MPa 300 to 340
280

Thermal Properties

Latent Heat of Fusion, J/g 400
290
Maximum Temperature: Mechanical, °C 180
970
Melting Completion (Liquidus), °C 640
1440
Melting Onset (Solidus), °C 560
1390
Specific Heat Capacity, J/kg-K 910
480
Thermal Conductivity, W/m-K 130
21
Thermal Expansion, µm/m-K 24
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 110
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
11
Density, g/cm3 2.7
7.7
Embodied Carbon, kg CO2/kg material 8.9
2.5
Embodied Energy, MJ/kg 150
36
Embodied Water, L/kg 1180
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.0 to 4.3
91
Resilience: Unit (Modulus of Resilience), kJ/m3 670 to 870
190
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 51
25
Strength to Weight: Axial, points 39 to 41
19
Strength to Weight: Bending, points 43 to 45
19
Thermal Diffusivity, mm2/s 54
5.7
Thermal Shock Resistance, points 17 to 18
18

Alloy Composition

Aluminum (Al), % 93.5 to 96
0 to 0.050
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0 to 0.15
19 to 22
Copper (Cu), % 0 to 0.15
0 to 0.5
Iron (Fe), % 0 to 0.35
73.3 to 80.8
Magnesium (Mg), % 4.0 to 5.0
0
Manganese (Mn), % 0 to 0.15
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
0 to 0.5
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0 to 0.2
0 to 1.0
Sulfur (S), % 0
0 to 0.050
Titanium (Ti), % 0 to 0.1
0.2 to 1.0
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0