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5082 Aluminum vs. S35135 Stainless Steel

5082 aluminum belongs to the aluminum alloys classification, while S35135 stainless steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (6, 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 S35135 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 67
200
Elongation at Break, % 1.1
34
Fatigue Strength, MPa 110 to 130
180
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 25
79
Shear Strength, MPa 210 to 230
390
Tensile Strength: Ultimate (UTS), MPa 380 to 400
590
Tensile Strength: Yield (Proof), MPa 300 to 340
230

Thermal Properties

Latent Heat of Fusion, J/g 400
320
Maximum Temperature: Mechanical, °C 180
1100
Melting Completion (Liquidus), °C 640
1430
Melting Onset (Solidus), °C 560
1380
Specific Heat Capacity, J/kg-K 910
470
Thermal Expansion, µm/m-K 24
16

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
37
Density, g/cm3 2.7
8.1
Embodied Carbon, kg CO2/kg material 8.9
6.8
Embodied Energy, MJ/kg 150
94
Embodied Water, L/kg 1180
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.0 to 4.3
160
Resilience: Unit (Modulus of Resilience), kJ/m3 670 to 870
130
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 51
24
Strength to Weight: Axial, points 39 to 41
20
Strength to Weight: Bending, points 43 to 45
19
Thermal Shock Resistance, points 17 to 18
13

Alloy Composition

Aluminum (Al), % 93.5 to 96
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0 to 0.15
20 to 25
Copper (Cu), % 0 to 0.15
0 to 0.75
Iron (Fe), % 0 to 0.35
28.3 to 45
Magnesium (Mg), % 4.0 to 5.0
0
Manganese (Mn), % 0 to 0.15
0 to 1.0
Molybdenum (Mo), % 0
4.0 to 4.8
Nickel (Ni), % 0
30 to 38
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.2
0.6 to 1.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.1
0.4 to 1.0
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0